Did some searching on this and didn’t see much mentioned, but knowing that the Driven DT40 is the go to for Porsche 997’s, I thought I’d see what they had to offer for my 1979 Ford 400. They suggested the GP-1 15w40. Any thoughts on this oil?
Opinions on Driven GL-1 (Ford 400 saga)
- Thread starter Clnilsen
- Start date
I don't see it as that special and their Pennsylvania crude thing looks gimmicky to me. I'd rather use Mobil 1 15w-50 racing which you can get a 5 quart jug of at Walmart for the price of 2 quarts of that. But I'd use Mobil Delvac Extreme, Chevron Delo XSP, and Valvoline Full Synthetic 15w-40 as well.
I don't see the engine going wrong with Euro oil either so those can be used too. Ford specifies regular API 10w-30 which probably was 2.9 HTHS and then sheared to less in a few hundred miles so it's not hard to match or exceed that requirement.
I don't see the engine going wrong with Euro oil either so those can be used too. Ford specifies regular API 10w-30 which probably was 2.9 HTHS and then sheared to less in a few hundred miles so it's not hard to match or exceed that requirement.
That engine was smogged out; dramatically understressed. Just about any 40 weight would be fine. No need for expensive boutique oils.
I can't imagine it's still stock, power mods are so common and cheap for these. If it is still bone stock with its epa carb, intake, and broomstick cam with no lobes yeah anything will do.
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