Originally Posted By: jarad248
This is for the other posters in this thread. not you
Don't be confused about anything I said. I don't advocate excessive zddp.
Quaker state high mileage does have added zinc. that was the only example I could get my hands on quickly.
so no I am not misleading anyone here.
click me to see qs hm sheet page
rat540blog uses sound methodology. he produces facts. opinions do not hold up against facts. opinions contrary to
the facts are worthless nonsense.
I like pennzoil hm and castrol edge and edge hm. quaker state ultimate durability may be the best oil out there.
you can overheat qs ud and it is still incredible protection. almost always better than anything I have seen.
Once again you are wrong and misleading. Does Defy use zinc? Yes it does use their "boosted zinc" (thats their zinc additive) but not at elevated levels anymore. Defy use to be an SL rated oil with boosted zinc, however, about a year ago they switched over to the SN rating, which, means it no longer has the elevated zinc levels. Big difference between boosted zinc and boosted zinc LEVELS. That's called marketing. You CANNOT have elevated zinc levels AND meet the SN rating that it has.
Also, you must not know there are different types of moly. 250ppm moly does not mean it is better than 50ppm of trinuclear moly, which, most of the advanced oils are using.
You can overheat many synthetic oils and still get good results, that statement you are advocating is called MARKETING. You do realize that Quaker State is a low top tier oil owned by Shell, whos premium oil line is, Pennzoil.
RATROD is interesting but he doesn't know more that tribologist who formulate the oils.