New GF-5 Oil
 

Yep, read about this a few weeks ago in an industry newspaper. Sign of the times I guess...

If it is superior to even the best conventional synthetic oils, I don't see why it is a bad thing unless the price goes through the roof.

Better oil + same price = win

...

But we'll see.

Pennzoil Platinum and Ultra both already exceed GF-5 specs.

Yes just a new spec. Several oils already meet the spec, others haven't finished testing yet (it takes quite some time for the whole testing approval process).

The new API spec is SN, vs the old SM.

Speaking of oil, what do folks think of running the engine on refined beef fat?
Green Earth Technologies