Oil changes with synthetic
How often do you change your oil if you use full synthetic oil? We have a Chevy 6.0 gasoline engine. We are putting Mobil 1 synthetic oil into it and are finding differing requirements. Some say g...
Forum Discussion
That CR test with taxis doesn't have one critical cycle of us folks who are not taxis drivers
NY taxis are almost never shut off for more than the time to refuel. In some of those CR reports, there were some who didn't turn off to refuel.
Us non-taxis drivers shut off our engines over might.
That then has moisture drop out vapor to condense inside the engine
Plus the oil film flows off surfaces
To have parts go metal to metal on startup
The why synthetics with better film strength will take longer to flow off
The quality of the filters anti-Drain valve determines how much oil stays in the oil galleries. That helps prevent metal on metal starts
Why more and more oil OEM's are adding molybdenum, which plates metal surfaces
Moly on moly has a VERY low coefficient of friction
Arguable, but many articles report 40%-50%-60% of all wear of an engine
I'm of the opinion of changing engine oil regularly and before the manuals recommendation
NY taxis are almost never shut off for more than the time to refuel. In some of those CR reports, there were some who didn't turn off to refuel.
Us non-taxis drivers shut off our engines over might.
That then has moisture drop out vapor to condense inside the engine
Plus the oil film flows off surfaces
To have parts go metal to metal on startup
The why synthetics with better film strength will take longer to flow off
The quality of the filters anti-Drain valve determines how much oil stays in the oil galleries. That helps prevent metal on metal starts
Why more and more oil OEM's are adding molybdenum, which plates metal surfaces
Moly on moly has a VERY low coefficient of friction
Arguable, but many articles report 40%-50%-60% of all wear of an engine
I'm of the opinion of changing engine oil regularly and before the manuals recommendation
