Reply to "Oil Viscosities"

panteradougMember

Back in my racing days I found that 20w-50 full synthetic did the trick.

The Mobil 1 high milage synthetic must have some kind of a viscosity stabilizer added to keep it from breaking down.

That might help this problem also.

My Pantera hasn't been a problem with oil pressure and I'm not stock.

My Shelby has with it's 347/302.

I had to mix 5w-30 and 20w-50, Mobil 1 Extended milage, 50/50, to get it to keep 30psi hot.
Conventional oil would drop to 10-15psi hot after only a couple of"laps". Just like the race car would.

6/16/078:19 AM

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