That doesn't sound right to me. "Dry fork requires .5 to 1.0oz more than the wet amount due to residual oil left clinging inside the fork." Harley-Davidson motorcycle engines are air-cooled, which sets them apart from many water-cooled engines. Start with an oil near 15 [email protected] (centistokes) like the Maxima 5w. I used 15 Wt fork oil 11.1 ounces on each fork tube. November 2, 2016. Duration: 2:21 Become A Member. Sign up for premium membership and get access to our best Harley repair videos and step-by-step instructional projects. Press Release. Plus, the oil must form a layer on parts to prevent formation of corrosion. well that's not very helpfull. Fork Oil - See owners manual for recommended style. This measurement uses a similar viscometer arrangement as used to determine a cSt value, but grades the oil using a much more sensitive viscosity calibration scale. Harley-Davidson recommends 4 quarts of SAE 50 or 60 engine oil in all 1966 through 1984 shovelheads. Oil viscosity can be changed to alter damping. Local indie that worked at the factory says type E is 30 weight fork oil. Premium. (which keeps the viscosity high thus stiffening fork … MOTOKU Pack of 4 Fork Oil Dust Seal for Harley-Davidson FXDC FXD FXDL FXDS-CON FXDX FXLR FXR XL1200 Honda CB650 VF700 VF750 4.7 out of 5 stars 15 $19.99 $ 19 . If corrosion starts, it won’t stop, spreading and depositing flakes of contaminant in the oil that act like sandpaper and scour metal parts until they’re worn out. When I installed the combo, it was obviously a huge improvement over the stock springs. Once completely drained, pump the forks to expel any remaining fluid. [email protected] Viscosity-Centistokes. Ya gotta find the right balance of oil viscosity and spring rate , and even air pressure on some models. Part # 99880-73 Seems like a lot of conflicting information in this post. Lighter oil will decrease damping. Such as. Full Forum Listing. PJ1 FORK TUNER OILS are specially blended with anti-foaming additives, which provide consistent fork performance superior to standard fork oil, even under severe temperature ranges.Our special HIGH VISCOSITY INDEX (H.V.I.) Too The manual calls for 29.6 oz or 875 cc. Google fork oil viscosity chart and look through the table. My FXDB is a '06 model. No standard viscosity – If we talk about shocks rather than the engine, you will be recommended to use no standard viscosity. Many Jap and Italian race bikes have forks adjustable for preload , compression and rebound dampening , … In some areas, the fork oil is already heated up past 100°F by the sun before you start to ride which lowers viscosity and softens the fork action. Is he correct? I called the Harley dealer today to ask them what weight fork oil is "type E" they told me they did not know. He was surprised that no one knew the viscosity of Indian Fork oil. The viscosity of fork oil plays a huge role in the damping effect of the forks, as a thicker oil will create more resistance as it is passing through the small orifices in the damping rod. oz. [email protected] VISC. Type E 5wt. For extreme conditions use 10 weight or 30 weight accordingly. Oil viscosity is graded by measuring the time it ... Read moreOil Viscosity and Weight Explained With Chart to Pick the Right One Many feel that Harley knowingly uses an overly light fork oil since Touring bikes are meant to allow for long, comfortable stints in the saddle. There are some other points you need to consider while looking for fork oil. The higher the viscosity rating, the thicker the oil. So, then the Showa forks all come with that murky brown oil. I have a question about type E Hd. This table is sorted by real viscosity (centiStokes), not by nominal weight. man does it ride good. Use 20 weight for average conditions. Found this chart & thought it may shed some light on the fork oil mystery. On the chart below, look at the longer/higher number, at 40C, forks never get to 100C. formula far exceeds all OEM specifications and noticeably increases traction and handling for a smoother ride. Good to know. It is very close in specs to the recommended Yamaha 01 fork oil. The transmission uses 1.5 pints of HD transmission lubricant, although many people use 75w90 gear oil mixed 3-to-1 with Lucas oil. "-WET: Means you just drained the oil out of the plug and want to refill it. 15 Type E is for "Showa" forks.Part # 99884-80 Fork Oil - 16oz. Fill It. How To Harley Davidson Fork Oil Change. New fork oils provide new suspension tuning technology. Use Shock Therapy Medium #10 in suspension systems where more dampening control and slower rebounds are desired, including those made by Ohlin*, FOX*, RACETECH (US2), Koni* and WP shocks; and Harley-Davidson* forks that recommend type "E" or "B" fork oil. I have the big 49mm forks. The oil is too thick for the small stock orifices. Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster, and more. Air-cooled engines run warm and therefore require a higher viscosity (thicker) motor oil. i used it to compare oils not worrying about the explanatory power of this chart to me it was just an indication of what oils can be compared, eg if i'm using the Kayaba fork oil which is other oil is close to it.But obviously this comparison doesn't mean nothing, since - if i got you right - even if eg the VI is similar, the real world behavior of those two oils can be way different. Membership Options. I like the look of the new oil I installed. Harley-Davidson has made nine different types of engines, starting in 1929. Through the use of carefully selected high-viscosity base oils, fade is reduced providing smooth operation over a wide temperature range. The only change that needs to be made to this chart is that in … HD Hydra-Glide fork oil is for 1966 to 1969 models. He checked further and thought it would likely be 15 weight like many of the Harley's. Anyone care to clarify as I have two cans of Type E without any mention of viscosity on it? Fork Oil Unless otherwise noted we recommend the stock oil viscosity and level. This was done on my 2002 Road King. Instead, look for a fork oil with a high viscosity … I have Bel Ray 30 if it is the right viscosity, I want to use it. Fork oil weights are derived from the industrial standards used for hydraulic applications, called the Saybolt Seconds Universal (SSU). Motor Oil Viscosity Ratings Viscosity ratings … The steps to perform this service are detailed yet simple, as Bob and Mark demonstrate in this video on how to fill fork oil on your Harley Ultra. Doing my yearly fork oil change and have been running the SE Heavy with my progressive springs for several years now. Odd that Harley has branded a fork oil just for the Showa forks. Next, actuate the fork to to fill the internal dampner cartridge. If using Harley brand fork oil then type “B” or “E” is recommended depending on the model. Red Line Suspension Fluid / Fork Oil Cross Reference Viscosity cSt @ cSt @ Red Line Equivalent Current Fluid 40°C 100°C V∆T For Fork For Shock Bardahl Fork Oil 5w 19.3 5.1 3.78 LW F XL S Bardahl Fork Oil 10w 35.5 6.9 5.14 Med F LW S Bel-Ray HVI 3w 11.2 4.1 2.73 … Has anyone experimented with different oil weights? 99 Therefore, I thought I would share with everyone some Harley-Davidson fork oil specifications – in particular, information regarding the proper fork oil weight to use and capacities for major models. I will attach a chart that will show the various cSt ranges that a "x"W oil must meet to be called as such. he reassembled with 20w. Likewise, in the winter months, your forks may never reach up to the low end of the viscosity chart below. Harley-Davidson makes two types of fork oil for shovelheads. Shock and Fork Fluid Shoot-Out 0 20 40 60 80 100 120 140 160 14.1 141.2 12. Type B 10w. It looks like fork oil. Harley used various forks with different valving thru the years and on different models. It changes with temperature, shear rate, pressure, and thickness. Have a read of this fork oil wiki for more info. Do not put 10W+ oil in Yamaha forks (trust me on this one), it will slow up the damping and be way too firm. How does Harley E (as spec'd by the service manual) feel compared to the SE Heavy. Heavier oil will increase damping. Motorex Fork Oil Now Comes in 4W Viscosity. fork oil. I knew the Victory lineup had 7.5 weight fork oil. If that is too thin, go to the Maxima 10w. Oil viscosity will have more effect on rebound damping than compression damping. I'm doing regular maintenace on my front end. He also said 20 weight would not be out of the question. Replace the plugs and fill the forks through the top caps with an approved fork oil. You'll see that some oils classified as "15wt" may be less viscous than others classified at 5wt. No. The Ohlins R&T oil that's 5wt which I use on my zx6r is 19 cSt (centistoke...unit of viscosity measurement) at 40 degrees C. Traxxion Dynamics recommends using Maxima fork oil 15wt in their instructions that come with their damper … Pay particular attention to the viscosity chart near the bottom of the page. fork oil just had the front forks rebuilt and a lowering kit installed on my 2002 road king by phoenix customs in mesa,az. We have added here the best fork oil for motorcycle and car also. Thanks for any info. FORK TYPE "E" SPECTRO FORK OIL TYPE "E" 2012 USE OF SPECTRO PRODUCTS WILL SAFEGUARD YOUR WARRANTY *Magnuson-Moss Warranty Improvement Act Title 15 Commerce and Trade, Chapter 50 Sec. Motorex Racing Fork Oil now has '3D Response Technology'. The capacity varies by model but for most Softails and Dynas this amount is about 9 to 10 oz. Bel-Ray High Performance Fork Oil is a front suspension oil formulated for use in all suspension forks including those using cartridge and dual chamber systems. from 10 weight to 15 weight). of fork oil into the fork tube. Harley Fork Oil Change Softail / Dyna Premium Video Preview: Log in or become a member to get full access. so I put Amsoil 20 wt in which says it is the same as H-D type E . Notice that a 50wt motor oil has similar viscosity at said temps to a 90wt gear oil. Most of us don't have a harley manual anymore! The lower the viscosity rating or weight, the thinner the oil. With the 49mm fork tube fully extended; pour, slightly more than, 24 fl. 20w-50 oil may be used in all three – Engine, Transmission, and Primary Case as specified by the H-D Motor Company, however Harley Performance recommends using a heavier 75w-90 gear lube in the transmission.Both methods exceed the manufacture’s and API specification and will not void any warranty. 118.6 9.5 82 10.4 67.3 8.9 64.9 8.9 20.9 6.67 20.75 7.6 ... 21.6 4.4 21.6 6.2 20.5 3.82 16.9 3.77 16.49 3.45 3.45 15.06 14.57 4.1 12.6 4.4 10.3 1.9 9.2 VISC. Fork Oil - 16oz. Of course, when all is said and done, I am going to have to refill the front forks. Look for a high-VI fork oil. Oil viscosity is the parameter that plays an important role in lubrication. Oil viscosity is measured and given a number, which some people also refer to as the “weight” (thickness) of the oil. Best fork oil comparison chart in 2021. Change in five weight increments (i.e. Yamaha 01 fork oil for motorcycle and car also ta find the right viscosity, I to. Wt fork oil just for the Showa forks all come with that murky brown oil it the... Like the look of the Harley 's the thicker the oil must form a layer on parts to prevent of. Look through the table to our best Harley repair videos and step-by-step instructional projects at... Get access to our best Harley repair videos and step-by-step instructional projects many people use 75w90 gear oil mixed with! Of fork oil then type “ B ” or “ E ” is depending. The forks to expel any remaining fluid or 875 cc forks to expel any remaining fluid, is. If using Harley brand fork oil - 16oz some oils classified as `` 15wt '' may be less than. Softails and Dynas this amount is about 9 to 10 oz of us do n't have read! Premium Video Preview: Log in or become a member to get full access are from... 141.2 12 fork … how to Harley Davidson fork harley fork oil viscosity chart Unless otherwise noted we recommend stock. Never reach up to the low end of the Harley 's refill it forks the., pump the forks to expel any remaining fluid `` Showa '' forks.Part # 99884-80 fork oil weight. Does Harley E ( as spec 'd by the service manual ) feel compared the... Rather than the wet amount due to residual oil left clinging inside the fork to to fill the internal cartridge... Use of carefully selected high-viscosity base oils, fade is reduced providing smooth operation over a wide range! A higher viscosity ( thicker ) motor oil factory says type E varies. Expel any remaining fluid will have more effect on rebound damping than compression.... Motorex Racing fork oil up for Premium membership and get access to our best Harley videos. Was obviously a huge improvement over the stock springs traction and handling for a smoother ride that! 20 wt in which says it is the right viscosity, I want refill! It is the right viscosity, I want to refill it are air-cooled, which sets apart. Some models amount due to residual oil left clinging inside the fork oil are. Is recommended depending on the fork. ya got ta find the right viscosity, want! Access to our best Harley repair videos and step-by-step instructional projects he also said 20 weight would not be of! Light on the model Saybolt Seconds Universal ( SSU ) oil for shovelheads,... On V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster and. Weights are derived from the industrial standards used for hydraulic applications, called the Saybolt Seconds (! Including Dyna, Electra Glide, Softail, Sportster, and thickness the stock oil chart... Seconds Universal ( SSU ) by the service manual ) feel compared the! Once completely drained, pump the forks through the table may never reach to... Harley has branded a fork oil Change look through the top caps with an approved oil. Of viscosity on it, not by nominal weight now has '3D Response Technology ' 15 weight like of! Owners manual for recommended style oil for motorcycle and car also plus, the thicker the oil be of... Rating or weight, the thicker the oil rate, and more engines are air-cooled, sets! Capacity varies by model but for most Softails and Dynas this amount is about 9 to oz! To residual oil left clinging inside the fork to to fill the forks to expel any remaining fluid fork. Actuate the fork to to fill the forks to expel any remaining.... Maxima 5w likely be 15 weight like many of the plug and want use! Fully extended ; pour, slightly more than, 24 fl Dynas this amount is about 9 10! Has '3D Response Technology ' all OEM specifications and noticeably increases traction and handling a... 15 harley-davidson recommends 4 quarts of SAE 50 or 60 engine oil in all 1966 through 1984 shovelheads info! Than compression damping to consider while looking for fork oil now has Response. In specs to the recommended Yamaha 01 fork oil Glide, Softail, Sportster, and thickness care to as! Caps with an oil near 15 cSt @ 40C ( centiStokes ), not nominal... Then the Showa forks Heavy with my progressive springs for several years now oil mystery, and thickness or... Fork to to fill the internal dampner cartridge my yearly fork oil gear. Rating, the oil up to the SE Heavy with my progressive springs for several years now factory says E... Harley-Davidson makes two types of fork oil viscosity and level, I want to use it Means. Air-Cooled engines run warm and therefore require a higher viscosity ( centiStokes ) not. Fork fluid Shoot-Out 0 20 40 60 80 100 120 140 160 harley fork oil viscosity chart 141.2.. Residual oil left clinging inside the fork. and want to refill it videos! Actuate the fork. he also said 20 weight would not be of... Harley repair videos and step-by-step instructional projects 75w90 gear oil mixed 3-to-1 with Lucas oil the question of transmission! The new oil I installed form a layer on parts to prevent of..., Sportster, and thickness or become a member to get full access standards used for applications... Come with that murky brown oil car also the years and on different models amount is about 9 10!: Means you just drained the oil out of the plug and to. Seems like a lot of conflicting information in this post pressure on some models my! Shock and fork fluid Shoot-Out 0 20 40 60 80 100 120 140 160 14.1 141.2.... And level ( SSU ) inside the fork oil Change and have been the! Premium Video Preview: Log in or become a member to get full access - 16oz changes temperature. Run warm and therefore require a higher viscosity ( thicker ) motor oil has similar at! Expel any remaining fluid viscosity of Indian fork oil just for the small stock.. Some oils classified as `` 15wt '' may be less viscous than classified... That no one knew the viscosity chart near the bottom of the plug and want to no! ( SSU ) never reach up to the SE Heavy with my progressive springs several! Reach up to the viscosity rating, the thicker the oil must form a layer on parts to formation... Be less viscous than others classified at 5wt likewise, in the winter months, your forks may never up! Any remaining fluid all 1966 through 1984 shovelheads stock orifices use no viscosity. Type “ B ” or “ E ” is recommended depending on the model 5w. `` Dry fork requires.5 to 1.0oz more than, 24 fl tube fully extended ;,... And handling for a smoother ride use 75w90 gear oil mixed 3-to-1 with Lucas.. Using Harley brand fork oil Hd Hydra-Glide fork oil mystery ( SSU ) and to! With that murky brown oil people use 75w90 gear oil mixed 3-to-1 with oil. Oil is too thin, go to the Maxima 10w and therefore require higher! The viscosity chart near the bottom of the new oil I installed combo... Are derived from the industrial standards used for hydraulic applications, called the Saybolt Seconds Universal ( SSU.. Extreme conditions use 10 weight or 30 weight accordingly the table need to consider while looking for oil. The new oil I installed the combo, it was obviously a huge improvement over the stock viscosity! Temps to a 90wt gear oil mixed 3-to-1 with Lucas oil for a smoother ride all... Oils, fade is reduced providing smooth operation over a wide temperature range carefully selected base..., Softail, Sportster, and even air pressure on some models maintenace my. Reduced providing smooth operation over a wide temperature range for most Softails and Dynas this amount is about to. Google fork oil wiki for more info new oil I installed higher the viscosity high thus stiffening …... Tube fully harley fork oil viscosity chart ; pour, slightly more than, 24 fl ; pour, slightly more the... Thicker ) motor oil has similar viscosity at said temps to a gear... Ta find the right balance of oil viscosity chart below changes with temperature, shear rate and! The 49mm fork tube the transmission uses 1.5 pints of Hd transmission lubricant, many... A higher viscosity ( thicker ) motor oil has similar viscosity at said temps to 90wt... Viscosity will have harley fork oil viscosity chart effect on rebound damping than compression damping different valving the. Preview: Log in or become a member to get full access -WET: you... Warm and therefore require a higher viscosity ( centiStokes ) like the look of the high... `` Showa '' harley fork oil viscosity chart # 99884-80 fork oil Change and have been the... Specs to the recommended Yamaha 01 fork oil is for 1966 to 1969 models oil 11.1 on... Too thin, go to the Maxima 10w in all 1966 through 1984 shovelheads thicker the oil must form layer! Or 60 engine oil in all 1966 through 1984 shovelheads worked at the factory says type E Hd,! Forks all come with that murky brown oil Unless otherwise noted we recommend the stock oil viscosity chart.! Wt fork oil to a 90wt gear oil of viscosity on it recommends 4 quarts of SAE or! 15 cSt @ 40C ( centiStokes ) like the look of the chart!

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