Originally Posted by viper_mike
Mobil 1 15W-50 does not have more ZDDP than Joe Gibbs or Brad Penn or equivalent oils. Not sure about the turbo diesel oils. I would assume that the turbo diesel oils have more ZDDP in them as well.
Mobil 1 is a decent oil and I used the 15W-50 religiously when my car was N/A.
I'm sure there are other oils that may have more ZDDP. I was simply stating that compared to the vast majority it has more ZDDP. Regardless it is still a solid choice for his application along with a million other options. Many people tend to get sacrilegious in their personal choice of oils anyways...