What makes an oil energy conserving?

[blackdiamond]

Is the "energy conserving" rating of an oil compared within each grade or does it exclude thicker oils?

I have some GC that isn't energy conserving and is a "thick" 30 wt, but are there 40 wt oils that are?

I don't know how this is determined.

 

[Bryanccfshr]

Energy conserving is an indication that the oil meets all of the ILSAC requirements. You will only find Energy conserving oils in 0w20,5w20,0w30,5w30 and 10w30 grades Not all oils in these grades are energy conserving. There are no energy conserving 40wts or above.
To meet energy conserving the oils must beat the fuel economy of a PAO based comparison oil by a certain percentage. This test is called the sequance VIB
http://www.swri.org/4ORG/d08/GasTests/ilsac.pdf

 

[bountyh]

Unfortunately for motorcycles, "energy conserving" usually means it has teflon additives or similar. Some bike clutches slip with that stuff, some run it OK. Mine has no problem, many claim their clutches were ruined because it burns into the plates.

 

[chevrofreak]

Originally Posted By: bountyh
Unfortunately for motorcycles, "energy conserving" usually means it has teflon additives or similar. Some bike clutches slip with that stuff, some run it OK. Mine has no problem, many claim their clutches were ruined because it burns into the plates.


Teflon? Not likely.

 

[BuickGN]

Originally Posted By: Bryanccfshr
Energy conserving is an indication that the oil meets all of the ILSAC requirements. You will only find Energy conserving oils in 0w20,5w20,0w30,5w30 and 10w30 grades Not all oils in these grades are energy conserving. There are no energy conserving 40wts or above.
To meet energy conserving the oils must beat the fuel economy of a PAO based comparison oil by a certain percentage. This test is called the sequance VIB
http://www.swri.org/4ORG/d08/GasTests/ilsac.pdf


Don't they usually have a lower HTHS for a given 100c viscosity vs their non energy conserving counterparts?

 

[Bryanccfshr]

Originally Posted By: bountyh
Unfortunately for motorcycles, "energy conserving" usually means it has teflon additives or similar. Some bike clutches slip with that stuff, some run it OK. Mine has no problem, many claim their clutches were ruined because it burns into the plates.



I think you are refering to friction modifiers.(teflon is not used in engine oils)Motorcycles nwith wet clutches need to run oils that are recomended by the manufacturere.

 

[FastSUV]

yes wet clutches should not use automotive SM rated oils...too much friction modifier and it will burn up the clutches. Just like in a rear limited slip differential; use too much FM in it and the posi will not work right when u need it to, and at worst it might burn it up over time from too much slip

 

[Bryanccfshr]

Originally Posted By: FastSUV
yes wet clutches should not use automotive SM rated oils...too much friction modifier and it will burn up the clutches. Just like in a rear limited slip differential; use too much FM in it and the posi will not work right when u need it to, and at worst it might burn it up over time from too much slip


I want to clarify in the nicest way possible but my skills at that tact are not as good as I would like them to be.. OK here goes.

SM oils are not an indication of being friction modified. ILSAC GF4 SM oils are.\a great indication that friction modifieres are present. You can get a diesel rated SM oil and it will likely not be friction modified. If I had a specialied machine like a a motorcycle I would simply run oil that is made and manufactured for it..

 

[bountyh]

Originally Posted By: Bryanccfshr
Originally Posted By: bountyh
Unfortunately for motorcycles, "energy conserving" usually means it has teflon additives or similar. Some bike clutches slip with that stuff, some run it OK. Mine has no problem, many claim their clutches were ruined because it burns into the plates.



I think you are refering to friction modifiers.(teflon is not used in engine oils)Motorcycles nwith wet clutches need to run oils that are recomended by the manufacturere.
many oil additives have teflon in them like Tufoil and Slick 50 as I recall.

 

[chevrofreak]

Slick 50 doesn't contain Teflon anymore.