Quote:
Originally posted by delucat2
This oil is designed to encourage wear in all the tight spots in the engine and to get the rings to seat. The high detergent and synthetic oils do not allow the engine to wear in properly, as mentioned with the oil burning WV.
|
Exactly!
Car manufacturers today can machine engine parts with tolerances so fine that the engine is practically ready to rock with no 'break-in' at all. Therefore no break-in oil is necessary for most new cars.
But if you get an engine rebuilt (bored, honed, new pistons & rings) by anyone other than NASA's machinists, you WILL need to break the engine properly in with 'break-in oil' -which have to be mineral oil as delucat2 pointed out.
Freestyler