Originally Posted By: A_Harman
That guy is so full of it! Talking about how oil is going to improve knock resistance. No way. Not even a pure synthetic oil with very uniform base stock composition would improve knock resistance. Long-chain alkanes that make up motor oil will break apart sooner due to high combustion chamber temperatures than will short-chain fuel molecules.
I think trying to explain how current F1 engine builders are improving power output by running motor oil through the combustion chambers is the wrong approach. Cylinder conditions are just too severe to control the combustion. Maybe they have a trick method of metering oil into the exhaust ports via the valve guides. This bypasses the combustion chambers, and allows the heat to be released into the turbocharger/MGU-H where it can be harvested for more power. I have read that the 1.6L V6 turbos run at a lambda number of 1.2, which means that they have excess oxygen in the exhaust that will support combustion.
LOL, have made that (the first) statement a couple of times, and been "lambasted" for it.
I agree with your post, we discussed it back a few months ago the ways in which they could conceivably have achieved use of the energy content of burned oil...in cylinder, in the end gas region is the least likely...worst case for knock, and worst to control.