It still does not oil the rings and bores before start up.
It still does not oil the rings and bores before start up.
A better system might be to incorporate a starting protocol into the ECU that delays start up until the oil has reached all bearings and to severely limit power until it has had time to splash onto the bores then somewhat limit power until a reasonable operating temperature (and therefore internal clearances) is reached. Oh that's right, they mostly already do the last one.
As Greg already implied. It solves a problem that really does not exist as most engines outlive the car they are in. "A better system might be to incorporate a starting protocol into the ECU that delays start up until the oil has reached all bearings....." Chemical pumps
The Toyota Prius does that...
Ignition and fuel is not applied until oil pressure is up..
And, there is sufficient range in the variable valve timing to delay closing of the intake valve to the point of serving as a compression release during the initial spin up of the engine.
2011-07-04
