|
When changing the oil it really makes no difference if the new oil is room temp or not. Yes, it's best to drain the old oil out when the engine is hot so you get all the suspended particles. When it comes to adding oil the volume is what counts and that hardly changes at all between room temp and 250F. One thing that CSC stresses is how to check your oil. I think that's because there is a sump for the transmission. If you drain both the crankcase and tranny sumps you cannot get a correct measurement on the sight glass until you run the engine a bit and thus fill that sump. As you know, we are talking about a very small volume of oil.
Peter Y.
|