Expected miles from a3.1 liter Pontiac grand prix
It's not a bad engine. However, expect average 120k to 140k miles. Please click on "Mark helpful" if you're happy with the respond. Good luck :-)
Thanks for getting back to me.
It all really depends on how the engine is maintained and driven, freeway miles are better than stop and go miles on any engine. In my many years as a tech I have seen these engines last anywhere between 140K to 175K without any serious problems, of course there are some that have over 300K and still going strong..
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