Originally posted by TLKrazey20
You trying to blow dudes engine up??? GOD I hope your not a mechanic
It's time for you to do some readings on modern synthetic oils.
This is a good place to begin your education:
Do I need to flush my engine before converting to Mobil 1 with SuperSyn™?
No. There is no special preparation necessary when converting from conventional oil to Mobil 1 with SuperSyn™. In fact, Mobil 1 with SuperSyn™ is compatible with conventional oil should it be necessary to mix the two. However, diluting it with conventional oil will reduce the superior performance characteristics of Mobil 1 with SuperSyn™.
Back in the days synehtic oils were not fully compatable, thats why people have this myths about "engine flush"