Tom
Administrator
- Joined
- Jan 13, 2005
- Posts
- 52,281
Something we were always taught to do was warm up an engine before draining the oil, right? Doesn't the viscosity of multi-grade oil increase with temperature? So oil would drain from a cool engine more freely than from from a warm engine, right?
Dumb question, and one I've wanted to ask for a very long time - why do we warm up our engines before draining the oil?
Dumb question, and one I've wanted to ask for a very long time - why do we warm up our engines before draining the oil?