G37 proper break in procedure?
#1
G37 proper break in procedure?
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#4
big debate on this subject with people saying do it the old fasion way of staying under 4000 rpm until like 1000 miles, some people say it's ok to go at it because new engines is built with tighter tolerances and/or broken in at the factory. My bro used to sell for Lexus and says, Lexus engines do not need to be broken in.
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