Oil/tranny fluid change
Were going away in a few weeks and want to change both. I need about four feet of snow to melt to get rv out and once out I won't be able to get it back to its parking spot due to soggy grass. Do you ...
Forum Discussion
I know all about the OLD wisdom which was about draining an engine with the oil hot back when everyone used single weight fluids.
Personally I look at it another way and that is by draining the oil before running the engine, the oil has already drained down to the lowest point as well as any contaminants. Since I am draining at the lowest point, I figure I get more of the oil and contaminants out by draining it after the engine has sat for some time.
The same goes for the transmission.
Besides the obvious that it is easier to work on a cold engine, I can see no advantage to warming the engine and transmission up before draining the old fluid. I've been doing it this way for years on my motorcycles, airplanes, trucks, RV's, racing and street vehicles.
Personally I look at it another way and that is by draining the oil before running the engine, the oil has already drained down to the lowest point as well as any contaminants. Since I am draining at the lowest point, I figure I get more of the oil and contaminants out by draining it after the engine has sat for some time.
The same goes for the transmission.
Besides the obvious that it is easier to work on a cold engine, I can see no advantage to warming the engine and transmission up before draining the old fluid. I've been doing it this way for years on my motorcycles, airplanes, trucks, RV's, racing and street vehicles.
