Motorcycle Fork Oil Grades

Castrol fork oil 5w 10w and 15w application.

Motorcycle fork oil grades.

Fork oils are graded depending upon their viscosity and load carrying capacity. Compared to the marzocchi 7 5 wt i found i had to increase the z1 fork damper aduster in slighlty towards the firmer direction to keep the same damping feel after changing to atf. Recommended for use in motorcycle forks and shocks for road off road and competition use. Free shipping on your first order shipped by amazon.

Order fork oil for your vehicle and pick it up in store make your purchase find a store near you and get directions. Get it as soon as wed sep 30. Viscosity refers to the oil s thickness the higher the rating say 50 weight the heavier or more viscous the. The first thing most folks think about when they consider oil is its viscosity.

A cheap base oil sn 100 in the graph below loses 29 of its weight during the noack test. Atf was rumored to have better anti foaming properties than fork oil and a 1 50 quart bottle of atf was of course much cheaper than 20 for a pint of marzocchi s oil. A typical oem 15w40 running in oil will lose 12 7 part of the reason it needs changing after just 600 miles while a pure fully synthetic ester base oil will lose just 5. The minimum level required for a motorcycle oil to reach jaso ma is 20.

More buying choices 12 55 22 new offers. Consumers like to shop for oil by weight. 4 7 out of 5 stars 18. Why does my fork oil have a weight.

So the motorcycle industry took the ssu vi measurement and converted it to weights based on the same scale used by the sae. The logic applied here is that a good fork oil should have a vi rating of at least 150. Check here for special coupons and promotions. For example a pulsar could use a less viscous oil while the hayabusa will need a highly viscous oil to balance that load of the heavy front fairing and engine.

It provides protection against wear corrosion and to minimise the effect of foam or air entrainment in the fork.