Can you use them or not?

 

I've used Mobil 1 15-50 in my Warrior now for nearly two years and works great.

 

I run amsoil full synthetic in mine, shares a motor.

 

If using the Mobil 1, make sure it has the red cap, the 15-50 has it, the main thing to look for when using an oil that is not specifically made for 4 stroke wet clutches is to see if the label has " energy conserving" on it, those are addatives that will cause your clutch to slip. Most car oils under 10 - 30 have that rating, and a lot of car synthetic oils do too, so either stick with 4 stroke clutch oils, or makes sure and read the whole bottle to make sure you don't put the wrong type in.

 

i ran mobile 1 in my warrior for 3 years and i drove it very very hard everywhere i went worked good for me i did have the clutch go out but thats only because of me being very hard on it.

 

I've always used Valvoline's synthetic atv oil, works great. It's 10w40, so it flows good during top end riding.