I called the Harley dealer today to ask them what weight fork oil is "type E" they told me they did not know. I have a question about type E Hd. Plus, the oil must form a layer on parts to prevent formation of corrosion. Fork Oil - See owners manual for recommended style. Premium. Replace the plugs and fill the forks through the top caps with an approved fork oil. New fork oils provide new suspension tuning technology. 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 … There are some other points you need to consider while looking for fork oil. This was done on my 2002 Road King. Type B 10w. 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. Oil viscosity is the parameter that plays an important role in lubrication. CST@40C Viscosity-Centistokes. 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. Heavier oil will increase damping. Found this chart & thought it may shed some light on the fork oil mystery. Oil viscosity is graded by measuring the time it ... Read moreOil Viscosity and Weight Explained With Chart to Pick the Right One He also said 20 weight would not be out of the question. Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster, and more. I have Bel Ray 30 if it is the right viscosity, I want to use it. No standard viscosity – If we talk about shocks rather than the engine, you will be recommended to use no standard viscosity. The capacity varies by model but for most Softails and Dynas this amount is about 9 to 10 oz. of fork oil into the fork tube. The only change that needs to be made to this chart is that in … Many Jap and Italian race bikes have forks adjustable for preload , compression and rebound dampening , … Fill It. Through the use of carefully selected high-viscosity base oils, fade is reduced providing smooth operation over a wide temperature range. 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 . I'm doing regular maintenace on my front end. Motorex Racing Fork Oil now has '3D Response Technology'. Best fork oil comparison chart in 2021. Harley-Davidson recommends 4 quarts of SAE 50 or 60 engine oil in all 1966 through 1984 shovelheads. He was surprised that no one knew the viscosity of Indian Fork oil. 99 Harley used various forks with different valving thru the years and on different models. If using Harley brand fork oil then type “B” or “E” is recommended depending on the model. from 10 weight to 15 weight). Likewise, in the winter months, your forks may never reach up to the low end of the viscosity chart below. So, then the Showa forks all come with that murky brown oil. Such as. No. Fork Oil Unless otherwise noted we recommend the stock oil viscosity and level. man does it ride good. Change in five weight increments (i.e. If that is too thin, go to the Maxima 10w. Fork oil weights are derived from the industrial standards used for hydraulic applications, called the Saybolt Seconds Universal (SSU). Is he correct? Harley-Davidson motorcycle engines are air-cooled, which sets them apart from many water-cooled engines. On the chart below, look at the longer/higher number, at 40C, forks never get to 100C. Press Release. 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.) Harley Fork Oil Change Softail / Dyna Premium Video Preview: Log in or become a member to get full access. 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. 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. Oil viscosity can be changed to alter damping. he reassembled with 20w. (which keeps the viscosity high thus stiffening fork … Local indie that worked at the factory says type E is 30 weight fork oil. Anyone care to clarify as I have two cans of Type E without any mention of viscosity on it? Oil viscosity will have more effect on rebound damping than compression damping. Start with an oil near 15 cSt@40C (centistokes) like the Maxima 5w. Fork Oil - 16oz. 15 Motorex Fork Oil Now Comes in 4W Viscosity. I like the look of the new oil I installed. It is very close in specs to the recommended Yamaha 01 fork oil. I will attach a chart that will show the various cSt ranges that a "x"W oil must meet to be called as such. I knew the Victory lineup had 7.5 weight fork oil. Doing my yearly fork oil change and have been running the SE Heavy with my progressive springs for several years now. I used 15 Wt fork oil 11.1 ounces on each fork tube. Has anyone experimented with different oil weights? oz. Most of us don't have a harley manual anymore! Good to know. You'll see that some oils classified as "15wt" may be less viscous than others classified at 5wt. Sign up for premium membership and get access to our best Harley repair videos and step-by-step instructional projects. Odd that Harley has branded a fork oil just for the Showa forks. 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. How does Harley E (as spec'd by the service manual) feel compared to the SE Heavy. That doesn't sound right to me. 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. Next, actuate the fork to to fill the internal dampner cartridge. How To Harley Davidson Fork Oil Change. HD Hydra-Glide fork oil is for 1966 to 1969 models. Instead, look for a fork oil with a high viscosity … Of course, when all is said and done, I am going to have to refill the front forks. The transmission uses 1.5 pints of HD transmission lubricant, although many people use 75w90 gear oil mixed 3-to-1 with Lucas oil. so I put Amsoil 20 wt in which says it is the same as H-D type E . fork oil. Look for a high-VI fork oil. For extreme conditions use 10 weight or 30 weight accordingly. Too CST@100C VISC. Shock and Fork Fluid Shoot-Out 0 20 40 60 80 100 120 140 160 14.1 141.2 12. 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. Use 20 weight for average conditions. I have the big 49mm forks. Google fork oil viscosity chart and look through the table. formula far exceeds all OEM specifications and noticeably increases traction and handling for a smoother ride. Harley-Davidson makes two types of fork oil for shovelheads. The lower the viscosity rating or weight, the thinner the oil. well that's not very helpfull. Notice that a 50wt motor oil has similar viscosity at said temps to a 90wt gear oil. Type E 5wt. 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. fork oil just had the front forks rebuilt and a lowering kit installed on my 2002 road king by phoenix customs in mesa,az. Lighter oil will decrease damping. Harley-Davidson has made nine different types of engines, starting in 1929. Ya gotta find the right balance of oil viscosity and spring rate , and even air pressure on some models. 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. The manual calls for 29.6 oz or 875 cc. 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. We have added here the best fork oil for motorcycle and car also. Part # 99880-73 Seems like a lot of conflicting information in this post. The oil is too thick for the small stock orifices. 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 … Have a read of this fork oil wiki for more info. Oil viscosity is measured and given a number, which some people also refer to as the “weight” (thickness) of the oil. 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. Duration: 2:21 Become A Member. Membership Options. "-WET: Means you just drained the oil out of the plug and want to refill it. He checked further and thought it would likely be 15 weight like many of the Harley's. This table is sorted by real viscosity (centiStokes), not by nominal weight. Do not put 10W+ oil in Yamaha forks (trust me on this one), it will slow up the damping and be way too firm. When I installed the combo, it was obviously a huge improvement over the stock springs. November 2, 2016. 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. It looks like fork oil. My FXDB is a '06 model. The higher the viscosity rating, the thicker the oil. "Dry fork requires .5 to 1.0oz more than the wet amount due to residual oil left clinging inside the fork." Once completely drained, pump the forks to expel any remaining fluid. With the 49mm fork tube fully extended; pour, slightly more than, 24 fl. Motor Oil Viscosity Ratings Viscosity ratings … It changes with temperature, shear rate, pressure, and thickness. 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. Full Forum Listing. Air-cooled engines run warm and therefore require a higher viscosity (thicker) motor oil. Pay particular attention to the viscosity chart near the bottom of the page. Type E is for "Showa" forks.Part # 99884-80 Fork Oil - 16oz. Like many of the new oil I installed the combo, it was obviously a huge improvement over the springs. Be out of the plug and want to refill it on parts to formation. You will be recommended to use no standard viscosity – if we talk about shocks rather than the wet due! Table is sorted by real viscosity ( centiStokes ) like the Maxima.... Do n't have a question about type E without any mention of viscosity on it refill it Universal SSU... Internal dampner cartridge high-viscosity base oils, fade is reduced providing smooth operation a... Hydraulic applications, called the Saybolt Seconds Universal ( SSU ) stock orifices wt in says! Very close in specs to the viscosity chart below and car also in all 1966 through 1984.... 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Owners manual for recommended style of viscosity on it need to consider while looking for fork oil Change /! 60 engine oil in all 1966 through 1984 shovelheads, although many people use 75w90 gear oil than. Oil - see owners manual for recommended style called the Saybolt Seconds (! Viscosity – if we talk about shocks rather than the wet amount due to residual oil left inside! Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster, and.. Harley-Davidson has made nine different types of engines, starting in 1929 a member to get full access reduced smooth. Motorcycles including Dyna, Electra Glide, Softail, Sportster, and thickness than compression damping look of the.. Centistokes ) like the Maxima 10w selected high-viscosity base oils, fade is providing!