Help! More often than not, the best transmission oil for Harley 6 speed tends to be pricey. Low and thin transmission fluids, on the other hand, flow more easily and are thus ideal for protecting the transmission component in low to freezing temperatures. JavaScript is disabled. The kit contains 6 quarts - 4 for a full engine oil change, 1 for the primary oil change and 1 for the transmission oil change. There is a lot we liked about this transmission oil. Harley 6-Speed Transmission Problems - TOP 5 Worst Things That May Happen. Red Line V-Twin Transmission Oil: Best Single-quart Oil. Red Line 90226 Big Twin 20W50 Power Pack Oil; 4 3. It is essential to know how much transmission fluid your bike requires. These include the engine oil, transmission fluid, and primary fluid. For a better experience, please enable JavaScript in your browser before proceeding. Spectro R HDPG6 Heavy Duty Platinum Synthetic 6s6 Spd Lube Specifications Brand: Spectro Oil Liquid Volume: 32 Fluid Ounces Material: Synthetic Buy Now We'll begin with the top of our list, Spectro Oil R.HDGP6 transmission lubricant. The 2013 Harley-Davidson Electra Glide Classic and all other motorcycles made 1894-2022. Another lubricant designed for V-twin engines, the Bel-Ray V twin primary chaincase lubricant, is an excellent option for a wide range of v-twin engine Harleys. Without a doubt, this is one of the best oil for the Harley Davidson twin cam. With these additives included in the transmission fluid, you wont have to think about your parts getting worn out, corroded, or forming deposits. The viscosity is just high enough, so it works well in both hot and cold weather conditions. Crafted from superior petroleum stocks combined with the most advanced anti-wear, anti-carbon additive systems available, Spectro Heavy Duty extends component life, reduces wear, eliminates valve sticking. << Your bike should give you convenience and some attitude, so treat it as your best commodity. Its shift points are optimized to perfectly match the performance output of the engine. Once the new O-ring is in place, use your inch socket and an extension to reinstall the drain plug. It will be necessary for you to change your transmission oil every 10,000. The cookie is used to store the user consent for the cookies in the category "Analytics". However, with only 1 quart of transmission oil, it is about 4 ounces less than most bikes Harley 6 speed transmission oil capacity. The neutral light was coming on when the bike was not even in neutral. Answer: For any Harley Twin-Cam engine, we highly recommend using AMSOIL Synthetic 20W-50 in all three holes (as they put it) for two essential reasons. In addition, the clutch pack hangs off the end of the shaft and is stretched by the torque of the engine. Synthetic fluids do not thin out quickly in extreme heat or oxidize. 2011 Blata Motard 125 BXM . Call Toll-Free As their name suggests, manual transmission fluid is intended for a manual transmission. However, using 20w-50 in all three is perfectly acceptable according to the H-D Motor Company. Save my name, email, and website in this browser for the next time I comment. /Contents 6 0 R It is the best solution for Harley enthusiasts who are fed up with their loud 6-speed automatic transmission. The oil also works well in a wide range of temperature levels and offers production from oxidation. spectro hd platinum gear oil 75 140 or the 6 speed oil spectro has. Every 250 miles (400 km) or weekly: Check the engine oil level (Section 2) Check the engine coolant level (Section 2) Check the windshield washer fluid level (Section 2) Check the tires and tire pressures (Section 2) Oil service: Change the engine oil and filter (Section 3) Reset the service interval display (Section 4) Red Line 90226 V-Twin 20w50 PowerPack Oil /CreationDate (D:20160923204250Z) You want to keep your gearbox clean with additives for the smooth operation of your Harley. You could suppose that all motorbike engines are the same, but this is not the case; reconsider! It was dubbed "the biggest new-engine program in the history of Harley-Davidson." Starting with just a few manual mills & lathes, JIMS now occupies several buildings totaling 50,000 square feet filled with CNC machines. Its high viscosity also means it does a great job of cooling the engine. 1. 4. How to order AMSOIL Free AMSOIL Catalog Wear Test - HARLEY SYN3 vs. AMSOIL Buy Online ORDER AMSOIL SYNTHETICS ONLINE To Place Orders by Phone 7AM-5PM Central Call Toll-Free 1-800-777-7094 Give Operator Referral # 1230864 for fastest shipping! However, this type of fluid is suitable in all weather conditions. It uses a different oil for the tranny and primary case. clutch aktuator , and thats why theres no dipstick What did i do wrong here ? document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.Copyright 2023 Car Fuel AdvisorEchelon Place 5252 E 82nd St Indianapolis, IN 42650. There are several things to consider, the main ones being. In contrast, automatic fluid is designed for automatic transmission. When and how often should I change my Harleys transmission oil? Subscribe for updates! endobj However, you need to change the gearbox transmission oil as and when required. MCS SAE 60 Engine Oil. The primary difference between the 75W-140 and 20-50W transmission oil is that the former is much thicker, as it has a higher viscosity. One thing that makes this oil reliable is that it meets the industry standards for transmission oil from GL-1 to GL-4 gear protection. Furthermore, this oil is much thicker than most. 4 quarts Transmission fluid capacity for gmc Yukon? Use the long funnel to pour the transmission fluid. 5. 2 2. For instance, AMSOIL V-Twin Synthetic Transmission Oil is an SAE 110 gear oil. So what exactly is included in this package? Sensitive riders may detect a burning oil scent, which can be annoying. This is the main drive gear inside the five-speed transmission case on a stock 2001 Big Twin with about 70,000 miles. 16oz Redline heavy shockproof gear oil Any more than 16oz, you're asking for a leak. /Rotate 90 Overall this oil is ideal for sports bikes as well. Analytical cookies are used to understand how visitors interact with the website. Furthermore, it eliminates clunks. Different year models use different methods to check the fluid level. Traditional fluids are made from crude oil and the reshaping of hydrocarbons. Some fluids are pricier than others, and others are cheaper. Transmission fluid acts as a cooling agent that keeps the transmission system cool even at high speeds. The latter is a high-quality transmission oil that offers the right viscosity for the six-speed transmission and costs less than the Spectro. It also features special additives that offer additional anti-wear protection and higher film strength between the gears. Spectro Oil R.HDPG6 Heavy Duty Platinum Full Synthetic 6spd Trans Lube, Mobil (112812-4PK) Delvac Synthetic Transmission Fluid 50, 3. Feb 1, 2014 I have my bike on a Titan motorcycle lift perfectly level & I changed out all 3 fluids. Historically, HPS men's team is one of the most successful football teams in Finland, winning nine national championships during the 1920s and 1930s. Bike Year, Make, Engine: 2005 home built softail, 95ci, Bike Year, Make, Engine: 2007 custom bobber/ hybrid engine. Dun & Bradstreet gathers Engine, Turbine, and Power Transmission Equipment Manufacturing business information from trusted sources to help you understand company performance, growth potential, and competitive pressures. Maybe the guys who run Amsoil will not have the issue either. I ride like an old guy that wants to get older. This transmission oil is designed for a wide range of motorcycle models. There are riders who complained about finding it hard to stay in the friction zone with their Harley 6-speed transmissions. Update: AMSOIL now offers dedicated fluid for Harley Davidson primary chain-cases and transmissions. Harley calls for a 20W-50 grade engine oil, but many feel a proper 75W-90 or 75W-140 gear oil is a better choice. With an oil grade of 75W-140, you wont need to worry about the viscosity of the oil and having a jammed transmission. By clicking Accept, you consent to the use of ALL the cookies. This is one of the pricier options out there. 2. Thread starter echoniner111; Start date Mar 14, 2011; 1; 2; Next. Because of its viscosity, this oil can function as a protective covering over massive teeth. The oil reduces the shifting clunk noise found in the six-speed transmission gearboxes. I put Redline in my 2018 trans at 500 miles, and have not seen any fluid transfer yet. 20 oz. 38 oz. A busted transmission happens when stress occurs due to lugging the engine in sixth gear, for that is past the 1 to 1 ratio in the gearbox per engine revolution and on the farthest point on the main shaft away from the bearing on the other side. 3 3. Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster, and more. In addition to the oils, you also get a versatile funnel as well as a hat. Spectro Oil R.HDPG6 Heavy Duty Platinum Full Synthetic 6spd Trans Lube, 3. Best Motor Oil for Hot Weather in 2022 (Reviews and Buying Guide), 5w40 vs 10w40 Engine Oil: Which One Is Best for Your Vehicle. These are; a torque wrench, a drain pan, a new O-ring for the drain plug, a inch socket with a socket wrench, a inch ball-end Allen wrench, a funnel, and the fluid.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'drivenowautomotive_com-leader-1','ezslot_4',108,'0','0'])};__ez_fad_position('div-gpt-ad-drivenowautomotive_com-leader-1-0'); First, you will need to remove the transmission drain plug located between the shock absorbers and the transmission. : For registered members this ad will NOT show, Bike Year, Make, Engine: AluminiumCustom 127cui, bought an Ultima 6 speed Polished trans , looks good , but no intructions in the package whatsoever..Need to know how much, Bike Year, Make, Engine: 1973 Ironhead XLH. MVT Synthetic V-Twin Transmission Fluid. Despite its many pros, we feel that 1 quart of transmission oil isnt enough for most people. ANS. >> of oil in it. From the 5 options that we have presented to you, we hope you can pick the best transmission oil for Harley 6 speed. It also gives them trouble going in a straight line. Ravenol ATF 8HP Fluid; 7 Buying Guide for the Best Transmission Oil for Harley 6 Speed . 9 Best Oil Filters for Synthetic Oil in 2022, Best Engine Oil for Go Kart (Review & Buying Guide) in 2022, Royal Purple 15w40 Synthetic Motor Oil Review, Your email address will not be published. HWr)c9L\pA While H-D supply their own oil, you definitely dont have to use it to ensure your Harley runs smoothly. A: 'Dry' fluid capacity is 22-24* fluid oz for all Evo and Twin Cam88/103 Harley 5-speed and BAKER 6-speed transmissions from 1980-2006 (*except 2006 Dyna). In second place is the Red Line 90226 Big Twin 20w50 PowerPack Oil Package. The 2006-up Dyna, 2007-up Softail & Touring (Cruise Drive factory 6-speed bikes) take a full quart of fluid (32 fluid oz). You may try checking the compensator if it needs replacing and reading the manual to know what kind of oil the Harley 6-speed transmission must be used with. You'll be in for one jerky ride. The viscosity of your transmission oil plays a crucial role in determining how your motorcycle will run, so it has to be perfect. On the other hand, the Road King will take 1.4 quarts of oil. Bearing failures in some Harley 6-speed transmission could happen as early as the 20,000 to the 30,000-mile range. The Harley 6 speed transmission is a manual transmission system. . Top 5 Picks of Transmission Oil for Harley 6 Speed. Our top pick is the Spectro Oil R.HDPG6 Heavy Duty Platinum Full Synthetic 6spd Trans Lube 1 Quart. Bel-Ray VTwin Primary Chaincase Lubricant: Best Budget Option. 1-800-777-7094 What is the oil capacity of a1998 evo 1340 Harley Davidson? ?Z(J0dQ!:@v@gPM|9bJN|' GBBdS9F]R| 2blt&SlKJIpD,(** kS 5(O!{oT}x`.rY{S>+^kb9).WkL. The oil is recommended for a maximum of 20,000 miles or for a year, whichever comes first. Tech Tip Main Page Rask Cycle: HARLEY FLUID CAPACITY: Year: Model: Engine Oil: Trans oil: Primary oil: Fork : Type: Amt: Type: Amt: Type: Amt: Each tube: 1965-70: . However, there were a few others who shared the problems they encountered with this transmission. You also have the option to opt-out of these cookies. Check your owner's manual or the AMSOIL Product Guide for the correct fluid capacity. The Harley Davidson owner can utilize this transmission oil to minimize noise while shifting smoothly through the gears. How To Drop A Transmission Without a Lift? Yg]>n" The dipstick on the Ultima 6 speed is the big allen head bolt above the clutch cable entry,or it is on mine,pb. Also, Harley-Davidson released a spare part called Isolated Drive System or IDS as a means to dampen the mechanical noise when changing gears. Exact automatic transmission fluid (ATF) capacity will vary by. The stress in both bearings causes premature transmission failure and, sometimes, an early rebuild. Helsingin Palloseura (HPS) (English: Helsinki Ball Game Club) is a sports club from Helsinki, Finland established in 1917. We crafted this review for the Harley 6 speed transmission. >> K9Anniv Well . Well, this is the question we seek to answer in this article. 1-800-777-7094, Share on: These additives help in decreasing the friction between the clutches and the gears of your Harley. This means that the main shaft and the clutch pack are unsupported at the end. >> endobj Welcome to Club Chopper! ANS. (130 mm) Rake (steering head) 26 Fork Angle 29.2 Trail 6.7 in. This seemingly minor issue posed a huge threat as riders could release the clutch thinking that the bike's gear was not on. Transmission fluids can also be grouped into traditional and synthetic. Given the importance of this oil to the performance of your Harley Davidson, you will have to pick the best transmission oil for Harley 6 speed. Hope me being a Norwegian and didnt grow up speeking english , made anyone misunderstand my post..? Jul 31, 2008. One person shared that after around 2,000 miles, shifting down from sixth to fifth and from third to second would slip the whole thing out of gear. Dmitry has been an editor and author at Cararac.com since 2015. MCV 20W-50 Synthetic Motorcycle Oil. << I bet it is 38 oz. Synthetic oils are usually compatible with all Harleys, whereas natural ones arent with all of them. They are more stable and can withstand extreme temperatures better than natural mineral-based oils. Quote: Originally Posted by ronbob. The Harley 6-Speed transmission was launched in 2007. One of the best oil for Harley transmission is the Redline RED42804 v-twin transmission oil. Delicious | RevTech Transmission Lube is a specially formulated gear oil to provide improved fluid flow to bearings, improved cold weather shifting and reduced drive train friction. But we would suggest you check quality and quantity after 5,000 miles and change the oil if needed. Spectro Oil R.HDPG6 Heavy Duty Platinum Full Synthetic 6spd Trans Lube 1 Quart Cures noisy six speed transmissions Check Price 2. Since we know you all wont be at peace with just one great option, so we are here with 5 different ones for you to choose from! Bel-Ray VTwin Primary Chinese Lubricant; 5 4. . It also works well for wholesome oil changes. The products in this kit are specially designed for Harley Davidson vehicles that feature a Twin Cam engine, the 103 included. I use my skills to create compelling and informative content for a wide range of audiences. View 5 Engine, Turbine, and Power Transmission Equipment Manufacturing company profiles below. There will always come a time when you'll be forced to handle issues with your motorcycle parts and accessories. Harley 6-speed engine owners dont have to worry about this because this Maxima Twin Cam transmission oil can be used for V-twin cam engines made after 1999. Also, due to its performance in high temperatures, you will be able to ride for hundreds of miles before needing a change. However, its still best to check with your manufacturer before you use the oil. Spectro Heavy Duty Engine Oil is a superior motor lubricant designed specifically for use in American-made Harley V-Twin engines. But opting out of some of these cookies may affect your browsing experience. 3 Best Transmission Oil for Harley Davidson 1. Plus, it also comes with a filter included. Like this content? ANS. /Producer (iText 2.1.7 by 1T3XT) After reinstalling the plug, it is time now to add the fluid.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'drivenowautomotive_com-large-mobile-banner-1','ezslot_5',109,'0','0'])};__ez_fad_position('div-gpt-ad-drivenowautomotive_com-large-mobile-banner-1-0'); Use the inch ball end Allen wrench to remove the transmission cover and dipstick. You get 5 quarts of 20W50 Motorcycle Oil, 1 quart of V-twin transmission oil, one quart of primary chaincase oil, and one bottle of fuel injection cleaner. Its world-class motor parts and accessories are proven to be some of the best in the world when it comes to quality. The oil can be used on six-speed Harley Davidson transmissions. ). Spectro Oil R.HDPG6 Heavy Duty Synthetic Oil; 3 2. Save my name, email, and website in this browser for the next time I comment. The Harley 6-speed transmission is one of the best in the market, but even this one is not spared, especially when you've reached incredible mileage. 1 0 obj However, there are great natural oils such as the Maxima Racing oil that we have included in our list. The 2007 Harley-Davidson FLHX Street Glide and all other motorcycles made 1894-2022. Maxima Racing Oils Twin Cam Synthetic 20W-50 Chrome Filter Complete Oil Change Kit, 5. If you have any queries, you can check our FAQs section to see if weve already answered them and if we havent, then drop your questions in the comment box below! The first and perhaps the most notable is the burnt oil smell. Additionally, it helps keep the temperatures in the gearboxes low. The quality of the additives in the transmission oil can completely make or break the product. and coolest place to be on the net if you dig the following! The owner's manual for my current bike ('12 Road King) indicates the Transmission Fluid capacity is 28 oz. Transmission Oil Drain bolt torque: 14-21 ft-lbs Transmission filler plug/dipstick torque: 25 in-lbs Ride the motorcycle until engine & transmission is at normal operating temperature. Sold in 1 liter bottle. welcome from Texas.sounds like you put WAY WAY to much in thereI only fill mine till it barely touches the bottom of round deals in there.If I remember it only takes a little over QT.but I'am no expert :senor:whizz 2012 Ultra Classic White hot Pearl.. 2002 Fatboy Concord Purple, :USA. Also, we considered the impact of each fluid on the gear noise. The Screamin' Eagle six-speed gearset has an 11-percent overdrive Sixth gear that will lower your bike's rpm by about 250 at 70 mph. (953 mm) Overall Height 55.1 in. Specifications. Viscosity refers to the resistance that a fluid faces when it flows. When designing this kit, H-D engineers kept the current gear ratios for First through Fifth gears, but they made the Sixth gear to a ratio of 0.89:1, resulting in a true overdrive. YES! /ModDate (D:20160923204250Z) The synthetic base oils and additives of this fluid help improve the performance of your gearbox. For a better experience, please enable JavaScript in your browser before proceeding. So, it is also an acceptable option as a transmission oil for your Harley. Your transmission oils responsibility is to protect the transmission, so having good-quality additives is a necessity. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. /Type /Page There are various types of transmission oils, with the best to use being synthetic oil. 4 Unlike standard Harley transmission oils that require changing ever so often, you can go for thousands of miles before needing to change the Bel-Ray big twin transmission oil. It is thus not recommended to use automatic transmission fluid. The six-speed transmission requires a high viscosity motorcycle transmission oil. Thankfully, this transmission oil uses high-end G4 additives to protect the engine from such damage. You get 5 quarts of motorcycle oil, 1 quart of V-twin transmission oil, 1 quart of the primary chain case oil, 1 bottle of fuel injection cleaner, and more. Fill the primary with oil It helps to use a funnel designed for a primary case. There are speculations that Harley-Davidson is very much aware of this issue. This makes it ideal for long-distance riding and for a heavy load. We then compiled our findings and narrowed them down to 6 transmission fluids ideal for the six-speed transmission.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'drivenowautomotive_com-box-4','ezslot_1',105,'0','0'])};__ez_fad_position('div-gpt-ad-drivenowautomotive_com-box-4-0'); In our selection, we considered several key things, among them viscosity. Inspect the fill plug o-ring for damage and replace if necessary. While the recommended interval is 20,000 miles, like the way you change your Harley air cleaner, you may have to change the oil more often if you ride your bike frequently. The Harley-Davidson FLHX Street Glide have 6 gears. JavaScript is disabled. Pictures. Once removed, check the drain plug for any damage and remove any debris. This whining and growling sound adds to the vibration of the bike, which is annoying to some riders. The cookies is used to store the user consent for the cookies in the category "Necessary". HPS has been active in several sports including bandy, ice hockey, football, handball and basketball.. There are numerous reports about trap door bearings and the main shaft's main ball bearing getting damaged prematurely. 1 Top 5 Best Transmission Oil For Harley 6 Speed Reviews; 2 1. However, it offers exceptional performance for its cost. We tested this oil on a 2002 Road king and found it offered smooth shifting, and it was easy to find neutral. Some people think it's negligible, while others think that for a company as big as Harley-Davidson, things like this should've been remedied at the production stage. *Harley-Davidson, H . It also works well with high-performance transmission systems. Y0w?~aJ/ 69SowD"RLz-?E1;p|Ui>i%`P/I;oIh M Limit one $50 USD / $50 CAD offer code per 2021 or 2022 Harley-Davidson motorcycle purchased at authorized Harley-Davidson dealerships. The Harley 6 speed transmission is a manual transmission system. %PDF-1.4 Traditional fluids are made from crude oil and the reshaping of hydrocarbons. However, with Spectro Platinum Oil, this is no issue. You may try checking the compensator if it needs replacing and reading the manual to know what kind of oil the Harley 6-speed transmission must be used with. fY 2 (hS`t;q,,3EEM4}=l!fl`sA>=@W$(xM ZVsgwh@|% $%hD:$c811e'[( gRy 'U>R1}(?DyI@#UGq2Y?a:eD3! This is because it coats all the internal components very well and prevents the formation of excess friction. 2 98-919 Main Shaft, Transmission 1 3 98-911 Counter Shaft Unit and Sixth Gear, 16 teeth 1 4 96-608 Roller Bearing (OEM 8876A) 5 5 98-913 Sixth Gear, 35 teeth, Main Shaft 1 6 96-659 Thrust Washer, Main Shaft and Counter Shaft (OEM 6003) 7 7 96-621 Retaining Ring, Main Shaft and Counter Shaft (OEM 11067) 6 8 98-909 First Gear, 25 teeth, Counter . 2. Reduces clanking noises of transmission when the bike runs, Decreases friction and wearing of the parts, Very stable in both hot and cold conditions, Provides excellent protection against corrosion and deposit formation. Turbo Noise on Acceleration Dangerous Symptom or Usual Thing. Both synthetic and natural lubricating oils can be used in a Harley 6 speed transmission. These additives help prevent sipping and rough idling. The loud noise was the most prevailing issue, but other than that, the 6-speed transmission worked fine in its early days. This website uses cookies to improve your experience while you navigate through the website. Not every transmission fluid out there is designed for motorcycle engines, more importantly, for the Harley 6 speed transmission. Next . Overall this oil offers exceptional performance. In warmer climates, a high viscosity fluid is recommended. One of these is the trouble with shifting gears. Proper maintenance of your Harleys 6-speed transmission is a must if you want your bike to be in tip-top shape. What Might Be the Reason? Amsoil MYTQT-EA Synthetic V-Twin Trans Fluid is specially formulated to resist the rigors of engine, transmission, and primary chaincase usage. Answer: For any Harley Twin-Cam engine, we highly recommend using AMSOIL Synthetic 20W-50 in "all three holes" (as they put it) for two essential reasons. Red Line 42804 V-Twin Transmission Oil. When it comes to using thicker transmission oils with 75W-140 viscosity, you may be worried about wearing down the components of your Harley transmission. Its cooling ability is also something that we appreciate. Use white thread sealant on the drain plug and make sure that . It is also easy to find neutral, which makes it easy to find oil leaks.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'drivenowautomotive_com-medrectangle-1','ezslot_6',111,'0','0'])};__ez_fad_position('div-gpt-ad-drivenowautomotive_com-medrectangle-1-0');report this ad. In addition to reviewing the eight best transmission fluids for the Harley Davidson, we have also included a buying guide on selecting the best. ONLY when primary cover has been removed. (1400 mm) Seat Height: - Laden2 26.7 in. Ask questions or send a hint for future articles on the author's page. All these models are distinguished by the suspension, engine, frame, and other characteristics. Personally, I think it has to do with the trans vent , or actually inadequate venting when the oil foams. This fluid stays in good condition for thousands of miles and does a good job protecting your Harley transmission. We tested a wide variety of transmission fluids and narrowed them down to six. What weight oil is best for a Harley transmission is one of the most asked questions about engine oils for a Harley 6-speed bike. Thicker fluids are considered to be high-viscosity fluids. Red Line RED42804 V-Twin Transmission Oil; 6 5. Dimensions Length 94.2 in. Required fields are marked *. The thicker fluid has advantages, such as it makes the engine quieter, but the disadvantage is that the engine might have to face some difficulties in delivering high power. Primary. It came with a rear-wheel suspension hidden under the transmission. The motorcycle manufacturer admitted to having observed a problem with the 6-speed transmission with the 2006 models. Transmission oil with 75W-90 is thinner than 20-50W, which may surprise you. I have a deep understanding of the complex technical concepts that underlie the industry. This brand is very reliable, and they wont be scamming you by making false claims, so you dont need to worry. So which is the best transmission fluid for Harley 6 speed? Some additives should also be present to give the oil better stability at different temperatures since that can fluctuate quite a bit. However, this habit is still highly encouraged, even among the most veteran riders. The transmission of your bike plays a vital role in its performance. The busted 6-speed transmission is a common issue not only with Softail owners but also with other models. In the mid to late 70's Jim committed 100% to V-Twin Motorcycles. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. In addition, synthetic oils help keep temperatures low and reduce friction in the gearbox while allowing for easier gear shifts. This so-called "pink death" calls for the transmission to be replaced entirely. 20W-50 and and 75W-90 are the two most widely used and highly recommended lubricating oils for a Harley 6 speed Transmission. >> You will be glad to hear that this transmission oil also makes shifting gears very smoothly. This oil is just right for bikers reluctant to use multi-use lubricants. Use the 3/8-inch ball-end Allen wrench to remove the transmission cover and dipstick. I have a ultima 6 speed tranny, and i want to check the fluid!! As such, they are perfect for an air-cooled system such as what you find in the Harley 6 speed. 7AM-5PM Central If anything, when temperatures get too low, only then your motor might struggle a bit because of the high viscosity. On the 2002 Road King, it slipped right into neutral on every try.