BlueJay 26 Posted April 8 I am new to ATV engines but have been working on mower engines for years. I saw another post on here about oil sources and someone mentioned “wet clutch compatible only”. I have been working on a TRX350 barn find and have drained the oil about four times for various fixings but I think I have it ready to go for the long run. The last fill I put in 10w-40 ND as per the SM weight specs (it said Honda brand) but it was conventional oil. What is the significance of “wet clutch compatible oil”? Thanks. Share this post Link to post Share on other sites
NB Floyd 31 Posted April 8 Oil should have JASO shown on the container and listed as meeting that specification. 2 Share this post Link to post Share on other sites
Derf40 132 Posted April 8 The clutch will not operate property, and will cause you trouble. good luck Share this post Link to post Share on other sites
BlueJay 26 Posted April 8 I do have some wet clutch oil now. Apparently engine oil has friction modifiers that cause wet clutches to slip. I plan on putting the good stuff in once I am sure I don’t need to pull the front cover again and take it on it’s maiden trail ride. So far I have been just running around the back yard while I have been working on it. Share this post Link to post Share on other sites
jeepwm69 7,233 Posted April 10 Rotella T4 and Rotella T6 are both good JASO MA rated oils that are available everywhere. Definitely get that conventional stuff out and replace with JASO MA rated oil. 2 Share this post Link to post Share on other sites
