When you buy a new car, (I just got a LEXUS GS 350) is it true or a myth that...

30269

New Member
To properly break in a new engine you are to drive the first 1000 miles alternating your city and highway driving. This allows your engines sensors to go through diffrent conditions to operate properly and your engine to form a "memory" so as to operate at maximum efficiency...... Just be sure you run plus grade fuel for maximum mileage unless your car manufacturer specifies premium fuel.....
 
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