I have a manual trans. and I find myself shifting at high rpms at times. For my EconoBox, I consider 4K high. Is this bad for an engine even if using a good synthetic oil? I hear so many people say that revving the engine as long as you don't redline it, is good for it. I have almost 100K miles on it and I have noticed that it doesnt have the same HP as it once did. Everything has been maintained and I've used a synthetic oil all the time. I figured with that many miles, I can't expect much more.
[ December 01, 2002, 01:57 PM: Message edited by: buster ]