Well, I was posting this in the other thread but felt that this info would be best suited in a new thread for everyone to see. This is not a thread to compare what oil you have ran in your minivan, pick up truck, or DD grocery getter.



Alright here is my 2 cents on the subject, take it for what its worth but I bet you'll want to read this

This is a performance car site so I assume we are talking about performance engines. What I am about to post is based on performance and race engines because racing is what we do!



When it comes to a performance/race engine.......the absolute best thing you can have in your oil is a high level of zincdithiophosphate. It is the best wear additive you can get in an oil for protection. It is the thing most needed in an oil when racing...... plain and simple. It protects your bearings, camshaft, lifters, etc.. I am sure that we all want such a thing!!


Now, onto the issue with all these off the shelf consumer oils such as Mobil 1. They have always had a great reputation with a lot of users having wonderful results.

However, these oils are no longer the same as they once were!!!!!

Due to emissions etc... the EPA has forced the oil companies to start decreasing the amount of zincdithiophosphate that they put in their oils. This is due to the fact that a large amount of zincdithiophosphate will shorten the life of a catalytic converter. This is a problem for us racers as this is what we need most in a good performance oil.

The EPA now limits production gasoline oils to 800 parts per million of zincdithiophosphate and 1200 ppm for production diesel oils.

There are options out there though!

First of all, you can take your oil of choice which has had the level of zincdithiophosphate decreased such as mobil 1, and there is a solution. Comp cams has an additive that you can buy that adds a high level of zinc to your oil of choice. This is one option to achieve your extra protection.

The other choices are the oils that still have high levels of zincdithiophosphate.......here are a few of them...

Castrol tection extra
Chevron dello 400
Mobil delvac 1300
Shell Rotella(1200 parts per million)
Valvoline VR1(1200 parts per million)
Quaker State Q racing(1900 parts per million)
Royal Purple(2000+ parts per million)

and finally what is considered the best by majority of the industry pro stockers and nascar teams especially....

Joe Gibbs Racing Oil(2000+ ppm)


One other oil I didnt mention is Amsoil. I personally have no experience but I have heard great things. I dont have any info on this particular oil as far as PPM or anything else so I chose not to put it in the list.
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