[Castrol 10w40] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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Castrol 10w40
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Posted by: FoxRacing81

My mechanic tells me that's the only kind of oil I should run.
I believe him, I just want to see what other people's opinions are.
Seems to work okay for me. But is this the best oil to run?
If it's not, I would like to know what is. I don't want to run synthetic either.

-Mx

Posted by: 400EXracer74

thats what i run in my 4 wheeler. i wasnt told to its just cheaper than honda oil so i use it. its been working well for me for a year now

Posted by: 03ChevyX

yea i run the castrol 10w-40 it seems to work as good as the Bel-Ray i used to use

Posted by: Jimford

I use mobil red cap. Got the idea on an older thread here. I think any good name brand is good. The key is to change you oil often. I change mine every 4-6 rides. Changing the oil filter every other time. It sounds crzy but I believe that why my 99' 400ex has never had a problem yet!!

Posted by: balls2da-wall

when you say castrol...does that mean Castrol Syntec? Thats all i seem to find

Posted by: sjc115

Castrol Syntech is a semi synthetic blend.

The Castrol 10w-40 that most people run is Castrol GTX. It is conventional oil like the Honda GN4. You can get it at any auto parts store or even Walmart for about $2 per quart.

Posted by: FoxRacing81

quote:
Originally posted by sjc115
Castrol Syntech is a semi synthetic blend.

The Castrol 10w-40 that most people run is Castrol GTX. It is conventional oil like the Honda GN4. You can get it at any auto parts store or even Walmart for about $2 per quart.

Yeah I got mine at K-Mart lol...you can get that stuff everywhere.

Posted by: reyes

Have you guys check the clearance of your valves? how often are u suppose to do that? Mines are a little loud any feed back will be appreciated.
Thanks

Posted by: balls2da-wall

400ex's are known for there ticking sound...i check the valves about every other month...

Posted by: reyes

How often do you find them out of limits? and what is the difference in the loudness of the ticking when you tighnten puppies up?

Thanks for the reply ! hoss

Posted by: balls2da-wall

Umm usually the arnt too far off..i would say maybe check them every so often....an ex will always tick loud even when the valves are set...no popb hoss'enda

Posted by: reyes

what oil weight you guys use on your EX me 10w40 maybe since am in florida were is hot i should be using something thicker what u think maybe the- thicking will minimize???