synthetic oil in an old motor?

[GhettoPop]

Originally Posted by USMC302

The non-synthetic oil is fine for you high mileage car if you have had no problems why switch now?

thats whats i'm thinking!

what is "good multi grade detergent mineral oil"? i'm guessing this is good old 10w-30? well, since the factory recommended 10w-30 which is still being used i will stick with it, i might bump it up to 10w-40, at least for the summer months...........the only leak i have is a valve cover leak, been there for years now......

on a side note, when i put in my tri-ax shifter on my t-5, i switch to Redline Synthetic ATF. i remember now that a month after i noticed fluid leaking from where the driveshaft enters the tranny, making a nice smokey drip on my x-pipe. i ended up replacing that seal (driveshaft seal?) anyway, was that a result of the synthetic switch?

[USMC302]

Originally Posted by GhettoPop

anyway, was that a result of the synthetic switch?

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Makes sense.