661 Oil Test 32:1 vs 40:1 vs 50:1 ?

[Ron660]

Here's an example of the square label Keith was referring to .

 

[KG441c]

Seems FD should keep engine cleaner

 

[blsnelling]

Anyone have any long time use with this stuff ?
View attachment 448866 View attachment 448867

@porsche965

 

[Ron660]

Seems FD should keep engine cleaner

Yes, the tests shows us a FD will be cleaner than a FC or a FB. It will also smoke less. But the test doesn't show that a FD will lubricate better than a FB.

 

[KG441c]

Yes, the tests shows us a FD will be cleaner than a FC or a FB. It will also smoke less. But the test doesn't show that a FD will lubricate better than a FB.

Ya the whole jaso thing is geared toward emissions for EPA

 

[blsnelling]

Does a FB rating mean that it doesn't pass FD testing, or that it just hasn't been?

 

[Trx250r180]

@porsche965

First full synthetic non factory oil that i have seen with chainsaw manufacturers on the box .

 

[KG441c]

I think the rating it recieves is as high as it will rate

 

[KG441c]

Looks like to me the fc, fd rated oils r full of additives and the base oils are performing to the same level as fb

 

[Ron660]

This one too.

 

[KG441c]

View attachment 448876
This one too.

I listed the picture with that whole series of oils . My question is why does motul choose to certify some oils and not their top rated oils?

 

[Ron660]

Does a FB rating mean that it doesn't pass FD testing, or that it just hasn't been?

Yes a FB rating shows it didn't meet more stringent detergency, smoke, and ash mass requirements.

 

[Ron660]

"Racing" oils are exempt.

 

[KG441c]

"Racing" oils are exempt.

Ya goes back to epa requirements the same as some fuels were restricted to race enviroments only.

 

[KG441c]

Some of these race oils may not burn as clean as some of the jaso rated oils. You have no way to know if they have actually passed the smoke and exhaust test because most of the topend race oils havent been tested. May be a good reason why the manufacturer chooses not to have it tested? As far as being exempt all oils are exempt from testing if they choose. They r choosing to have ratings displayed on some oils and some they arent for a reason

 

[KG441c]

K2 is looking pretty good to me right now. They will all work though. Id even use h1r as it never gave me any problems

 

[KG441c]

About the only advantage I see in Jaso ratings would be some have better detergeants to aid in a cleaner motor

 

[Deleted member 83629]

motul 800 off road burns very clean with no smell and doesn't smoke at all except when the saw is first started.

 

[KenJax Tree]

motul 800 off road burns very clean with no smell and doesn't smoke at all except when the saw is first started.

I bet compared to your Supertech oil 10w-30w would burn clean[emoji23]

 

[KG441c]

Id like to hear input from everyone on likes/dislikes on K2 thats used it