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#13 |
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Half a Bubble Off Plumb
Drives: 2009 Yaris Sedan Join Date: Mar 2009
Location: Bristol, Tennessee, USA
Posts: 1,593
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Within reason. Back in the '70s and '80s when Mobil 1 was advertising extended drain intervals, I'm sure I damaged two engines by blithely following them. I don't believe in extended drain intervals with any oil now, and if you're going to be changing at the recommended intervals, I don't believe there's any real advantage to using a synthetic oil unless you're operating in extreme Arctic cold.
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