i was thinking of running castrol motorcycle oil 20-50 in my 300 arctic cat ,, would that be a good oil to run ,, it;s what i use in my harley .. would that be ok to use

 

You should check your owner's manual. I'm not sure what you need but a lot of ATVs use lighter weights like 0-W40 or 10W-40.

 

i run nothing but rotella T6 in my cat.. 8000km of hard riding and 0 problems. My cat takes 0 40

 

Also depends on which model you have. If it's a cvt transmission, you can use regular motor oil. If it's a manual, you'd want to use oils without friction modifiers.


Like Zrock, I ran the Shell Rotella in my kfx 400 and in all my current street bikes.

 

Big fan of Rotella conventional in almost everything I run now. 15w40 in my street bike, no friction modifiers so the clutch likes it. Straight 30w in mowers, 10w30-40 in other engines. It's good stuff!

Used to use Castrol a lot, but the dark color bugged me. It was looking all black not long after an oil change.

 

T6 in my 22 hp Kohler riding mower engine and in the Briggs push mower.Both doing good,no oil burning or smoking.I'll stick with Mobil 1 in the truck and suv. Read some posts on T6 being hard on auto catalytic converters. Not sure if the oil would have anything to do with them or not.

 

Interesting discussion going on over in a bike forum I frequent.

Seems Shell has added a multi vehicle T6 that has friction modifiers in it. Bottles are supposed to be marked "multi vehicle" and it you get the old heavy duty it's still ok for bikes and quads.

Also they just started discussing whether JASO MA and the JASO MA2 markings. The 2 meaning it's safe for bikes with catalytic convertors.

There's nothing like a good oil thread that at some point just makes you want to stop using any oil at all.

 

Had me worried so I went out and checked. I'm using Rotella T4 (conventional), so I'm good.

 

Run Rotella T6 in your Cat. I've actually tested a bunch of oils, sent samples to Blackstone Labs. T6 had only 20% of the wear metals as Mobil one, and 10% as much as Motorcycle oil = Maxxima 10-40 mineral oil. Look on the API Service circle on the back. If it says CJ-4 / SM and the bottom part of the circle is blank, it's the good stuff. Any thing like "Energy Conserving" is not right.