I don't own a 110cc quad, but it seems to me that lots of 110cc owners pull out the wrong "oil drain" bolt and then ask questions. This is probably the cam chain tensioner. Just put it back in the same way it came out. If I recall correctly the bolt is 14mm instead of the real drain bolt which is 17mm.

 

I agree with others 10w-30, 10w-40, 15w-40 they will all work in those things. What kills these little things is DIRTY oil. The oil gets dirty fast in dusty conditions as most of these kids Chinese atv's have cheapo air filters. Keep them clean and in good shape and you should be fine.

 

I have found the same thing to be true..10w30 is more likely to be energy conserving...While I have used the energy conserving oil a few times (by accident not on purpose). I now only use non energy conserving...But There were no clutch or gear box related problems from using it...I have a hard time using $5 a qt oil in a Chinese quad or any of my air cooled Honda thumpers.

For anyone with a Gy6 engine...using motorcycle oil is a waste of money...no wet clutch in a GY6 engine to harm.

 

Someone please cure my ignorance but I thought the problem with energy conserving oils was only an issue with wet clutch systems. Are the centrifugal clutches in 110cc kids ATVs wet? I ask the question because I’m new to ATVs and I'm curious.

 

Yes you are correct, the clutches in a 110cc auto are wet..and almost every motorcycle engine uses a wet clutch.

 

Thanks for clearing that up for me mywifesquad. I knew about staying away from energy conserving from my motorcycle but all thecentrifugal clutches I've worked with in the past (mostly go-karts)have been dry.

 

I'm with you there, but I'm still not clear on the little cheapy 110cc gas & go (no gears automatic). So these babies are a wet clutch, shared sump with the engine oil? FWIW, for hard working small air cooled engines, I like Shell Rotella-T 5w40 or 15w40.

 

D@@@@@M that looks familer PoManzATV. Where've I seen that before.

 

Yes those engines have a wet clutch...

I have been using Valvoline 10wt-40 in all of mine for years...No clutch problems and a bit of money saved on oil..

 

Probably a good call w/ plain old Valvoline 10w40. I would imagine it's more important to change oil more often given the clutch shares the same oil as the engine and the engine has no oil filter. You'll collect more debris in the oil. No sense in putting liquid gold in there if you're just going to dump it often.

Joel