[mayor hal]

Here a picture of the Canadian CFMOTO OIL. It is synthetic and 5/40.

[Jogon30]

Lol thanks for the pic I guess it don't matter and it's nice to see some proof can't get any clearer then that....l

[emersonsc]

Agh, what does the manufacturer know...




Personally, I'm not trusting of thin oils in something that works as hard, revs as high, and runs as hot as these do. Take the time to read my write up about my engine blowing. These things use cheap bearings, if you can even call them that. There are NO roller bearings on the crankshaft or the cam shaft.

Use a thing weight oil at your own risk, but as a dealer, someone who works on these, and someone whos done multiple full rebuilds on these engines, you'd be stupid to do so. I'll never understand peoples blind need to use full synthetics. Im assuming it goes on the blind basis of "it cost more so it must be better." Unless the manual or engine was designed for it, its a waste of money. There is a reason why you still see 100 year old engines on the road and why modern engines are lucky to see half a decade.

I've litteraly seen every piece of this motor from multiple tear downs and rebuilds due to air box and air filter failure. The bearings they use are cheap. These engines run hot.

Here's something else to put into consideration:

The Chevy 4.3L V-6 calls for 5/10w40 in all the vehicles its in.

That same engine is VERY popular in marine applications. How ever, the oil is MUCH different. Its calls for a 25w40. The reason? The EXACT same reason why you need to run a heavier (hence 15w40) oil in these. That 4.3L engine works harder and much hotter in a boat vs an automobile. You could get away with the 5w40 (i still wouldnt, but you could) in the CForce 800 because youre talking about a machine thats over half the weight, and has MUCH better air flow over the engine.

[Bpraim]

We run synthetic on our cfmoto here and will start to use motul synthetic from cfmoto in the near future.
I have confirmed  with the engineering department face to face.
Synthetic is ok in all cfmoto engines.
5w40,10w40,15w40, they are all a 40 at temp.
We use 5w40. No problem.
Use whatever you want. But this is what we use.
If it's certified by the engine maker, works for me

[mayor hal]

Agh, what does the manufacturer know...




Personally, I'm not trusting of thin oils in something that works as hard, revs as high, and runs as hot as these do. Take the time to read my write up about my engine blowing. These things use cheap bearings, if you can even call them that. There are NO roller bearings on the crankshaft or the cam shaft.

Use a thing weight oil at your own risk, but as a dealer, someone who works on these, and someone whos done multiple full rebuilds on these engines, you'd be stupid to do so. I'll never understand peoples blind need to use full synthetics. Im assuming it goes on the blind basis of "it cost more so it must be better." Unless the manual or engine was designed for it, its a waste of money. There is a reason why you still see 100 year old engines on the road and why modern engines are lucky to see half a decade.

I've litteraly seen every piece of this motor from multiple tear downs and rebuilds due to air box and air filter failure. The bearings they use are cheap. These engines run hot.

Here's something else to put into consideration:

The Chevy 4.3L V-6 calls for 5/10w40 in all the vehicles its in.

That same engine is VERY popular in marine applications. How ever, the oil is MUCH different. Its calls for a 25w40. The reason? The EXACT same reason why you need to run a heavier (hence 15w40) oil in these. That 4.3L engine works harder and much hotter in a boat vs an automobile. You could get away with the 5w40 (i still wouldnt, but you could) in the CForce 800 because youre talking about a machine thats over half the weight, and has MUCH better air flow over the engine.

I do believe it's probably a typing discrepancy.  Most likely 5/40 not 15/40. My manual shows 15/40 too!

[REDRIDER]

We run synthetic on our cfmoto here and will start to use motul synthetic from cfmoto in the near future.
I have confirmed  with the engineering department face to face.
Synthetic is ok in all cfmoto engines.
5w40,10w40,15w40, they are all a 40 at temp.
We use 5w40. No problem.
Use whatever you want. But this is what we use.
If it's certified by the engine maker, works for me

I know this is an age old thread BUT I think people should understand this.  What this guy says is correct.  The above thread by emerson is not accurate. winter weight number which is the first number is how the oil acts in cold temps  the second number is how the oil acts at operating temp. 5w-40 is the exact same thickness as a 25w-40 at operating temp.  The 25w will be molasses at start up (which is NOT good) the 5w will be much thinner when cold (much better less engine wear at start up quicker to pressurize and get to the top of the engine) the w means that the oil acts like a straight 5 weight would when it is cold yet does not thin out as much at temp and acts as a 40 weight at temp.