With 270000 miles, a blue puff of smoke at start up is normal. Oil probably leaks down from the valve seals after the engine is shut down, causing a little oil to sneak into the combustion chamber. Unless you are consuming a lot of oil, meaning your oil is low all the time -- I wouldn't worry about it. Unless, of course, you want to rebuild your engine? Engines do not last forever - and 270000 miles on V8 is a good run.
Saturday, February 28th, 2009 AT 6:58 AM