Quote:
Originally Posted by americasfuture2k
ive always used it because i know its better for the engine. if my corvette used it from the factory, then its the right choice for new motors that occasionally get driven hard.
i see it as this, if GM engineers chose to put it in their cars (not all of course) off the line, then its a good choice to use for how i drive my cars.
im trying to change my driving habits for better milage of course.
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Is it actually true that gm put mobil 1 in some cars from the factory? I have read this about my car as well. If it is then were the motors broken in prior to them being installed in the car?
I have always thought that during break in you should use conventional motor oil so that you make sure that the rings set and various other reasons. But if GM puts mobil 1 synthetic into brand new motors then what I dont understand is what the deal is with breakin on conventional.
I know that GM recommends certain oils for different engines but I find it hard to believe that they would want the engine broken in on a synthetic.