What motor oil do you use in your Shelby

[CSX 4133]

Brad Penn 20w-50.

[Steve McDonald Formally known as Mcdonas]

Brad Penn, change every year or 3,000 miles whichever comes first

[69 GT350 Vert]

I use Lucas Hot Rod Oil.  My engine builder recommended it.  It has high zinc and phosphorous.

[shelbydoug]

I use Mobil1 and add one blue bottle of STP per 5 quart for the ZDDP.

My 68 GT350 has an 8 quart road race pan on it with an oil cooler. My Pantera has a 10 qt road race pan. Both have oil coolers.

The oil doesn't get changed from mileage. I change it by color change. Simply put, they don't get enough miles put on them for that.

[FL SAAC]

the one and only mobil 1, simply continues to be the best

[shelbydoug]

the one and only mobil 1, simply continues to be the best

Well it is still good, but it was reformulated and isn't the same thing as in the '70s.

[csheff]

I used Brad Penn but now use Amsoil with the zinc in my 67 GT-500

[Tom Honegger]

I use Valvoline VR-1 10w30 in my GT 350.

[sfm5]

Brad Penn 20-50 (high zinc) with a Napa Gold oil filter for my 289 HIPO.

[FL SAAC]

the one and only mobil 1, simply continues to be the best

Well it is still good, but it was reformulated and isn't the same thing as in the '70s.

being reingeneered has made the original formula better and you (I) do not add zddp as it contains 1200 +

https://rennlist.com/forums/911-forum/427642-mobil-1-claims-15w50-has-1200-ppm-phosphorus-3.html

[Bigfoot]

ZDDP Baby

[557]

10 40 whatever....My cars not fancy and doesn't go all that many miles between changes,more of a time issue...Coincidentally I just changed the oil yesterday....Generic oreilly auto parts stuff with additive....

[CSX 4133]

Interesting article comparing additives/oils.

http://www.enginebuildermag.com/2008/02/performance-oils-and-additives-got-zinc/

[98SVT - was 06GT]

Mobil 1 in everything - except for our original little RHD Mint that gets 20-50 Castrol and some zinc additive.

[shelbydoug]

the one and only mobil 1, simply continues to be the best

Well it is still good, but it was reformulated and isn't the same thing as in the '70s.

being reingeneered has made the original formula better and you (I) do not add zddp as it contains 1200 +

https://rennlist.com/forums/911-forum/427642-mobil-1-claims-15w50-has-1200-ppm-phosphorus-3.html

Not so. I know what I'm doing.