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Speedy Squirrel Speedy Squirrel is offline
Rocket Scientist
Join Date: Jun 2008
Location: Detroit
Posts: 907
That is not correct. Mobil 1 15W50 has 0.1 ZDDP. Brad Penn has 0.1 to 1.0 ZDDP. See the top of page 2 here:

Originally Posted by unclebilly View Post
Brad Penn is what I use in all of my 911s except for the chump car, it gets Rotella T and is changed every race.

The guys who run Mobil 1 should look into the ZDDP levels - they cut this out a few years ago because it was not compatible with catalytic converters. You need the lubrication from the ZDDP for your valve train on the older engines hence the Brad Penn or other oils with ZDDP.

Run what you want - its your car.
Old 04-15-2014, 06:29 PM
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