Originally Posted By: Lex94
About time.
The piston/crank area is a filthy place to be if you are oil...If you separate it from the rest of the engine, then you really only have to replace the piston/crank oil regularly. The other oil system could probably be "sealed for life" like the newer transmissions.
Heck, You could probably replace the engine coolant with the same oil used to lub the chain/cam. The upper-end oil could be used as engine coolant as well
No?
Is that what GM is doing? It would make sense.
I never thought of using the valvetrain chain/cam oil as engine coolant. Thing is, you would want to use a high viscosity oil like maybe 50, and that makes a thick coolant. also, oil does not absorb heat near as well as water.
About time.
The piston/crank area is a filthy place to be if you are oil...If you separate it from the rest of the engine, then you really only have to replace the piston/crank oil regularly. The other oil system could probably be "sealed for life" like the newer transmissions.
Heck, You could probably replace the engine coolant with the same oil used to lub the chain/cam. The upper-end oil could be used as engine coolant as well
Is that what GM is doing? It would make sense.
I never thought of using the valvetrain chain/cam oil as engine coolant. Thing is, you would want to use a high viscosity oil like maybe 50, and that makes a thick coolant. also, oil does not absorb heat near as well as water.
