Brad Penn Oil and the ZDDP Debate

[patrickt]

Originally Posted by madmaxx

If you go to the Mobil website they indicate their 15W50 synthetic has 1200 ppm of zinc and phosphourous. A little but heavy on viscosity but maybe another option. As far as "old" oil nothing wrong with it as long as the lid is on it. It was in the ground for millions of years, lOL

Perfect example of how someone who does not carefully read your post will get mislead. 15w50 weight oil is exempt from the API limitations on SM oil. So they can indeed have the higher levels of zddp. Now if you pick up that same oil with a different weight, that zddp you want can be significantly reduced. And on the off-chance that oil has the SN rating after October and you see the words "Resource Conserving" on the label, forget it.

[madmaxx]

It was your verbage in your original post that caused me to search the Mobil website and others for NON- energy conserving oils, that is when I found the Mobil 1 15W50. You will also find alot of 10W40 oils and 20W50 have the higher zinc/phosphorous additives since they do not classify and energy conservation. Valvoline VR-1 is a misleading fraud, they lead you to believe it has the additives but with the SJ rating it cannot have more than 800 ppm. Royal Purple also does not carry the SJ rating and loads their with zinc and phos but it is $$$$$ Pretty interesting.

Originally Posted by patrickt

Perfect example of how someone who does not carefully read your post will get mislead. 15w50 weight oil is exempt from the API limitations on SM oil. So they can indeed have the higher levels of zddp. Now if you pick up that same oil with a different weight, that zddp you want can be significantly reduced. And on the off-chance that oil has the SN rating after October and you see the words "Resource Conserving" on the label, forget it.

[patrickt]

Yep, we don't conserve energy and we're damn proud of it.

[RodKnock]

Originally Posted by patrickt

15w50 weight oil is exempt from the API limitations on SM oil. So they can indeed have the higher levels of zddp.

Now I realize the reason I'm running Joe Gibbs' 15w-50. Thanks.