Quote:
Originally Posted by GaryR
Mobil 1 creates leaks? Find new "p-mechanics".

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+1. I think back inhte day (when Synthetic oil was first introduced), this was an issue for some cars. Since those days, time has marched on and the synthetic formulations have changed to elminate this as an issue.
At this point in time, I feel that the dino vs syth issues are mostly academic. In regular service (99% of the cars out there), it does not matter which oil you use as long as you have the proper additve package for antiwear, etc. Due tot he higher temperature tolerance of synthetic oils, those highly stressed engines (race cars, for example) may see a slight benefit from synthetic (group IV and V) oils due tot he better tolerance of excessive heat.
No, I am not a lubrication expert but I have stayed at a Holiday Inn express!