Jerry called Pennzoil a year or two ago and had asked them about it if I recall correctly it was Jerry. they told him there was a difference and even gave the different SKU#'s ...
you have to look close at the red label. 1 has nothing and 1 had synthetic blend on it in the lower left corner above "motor oil".
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see the difference ? you need to look close !
I looked in to this. They are the same.
well damn I guess that kills that then !
Jerry called Pennzoil a year or two ago and had asked them about it if I recall correctly it was Jerry. they told him there was a difference and even gave the different SKU#'s ...
@Jerry Bransford ? Additional information? I was informed that the high mileage oils have synthetic additives that are the properties that help our seals and gaskets last longer. I going by information from an oil rep at a car event at least 5 years ago(time?)I’ve been running this high mileage product since with excellent results.
Have you ever heard of using diesel oil
The reason some diesel oil fits the bill is it is non synthetic and close to the right weight -
People began using/recommending diesel oil back when the gov mandated ZDDP level to be dropped, and some still recommend it because they don't know what they're talking about. For a few years, oil for diesel engines was exempt from the new mandates and maintained ZDDP levels in the 1200-1600 range, which is what old flat tappet engines were designed with. Diesel oil today has a lower ZDDP level, similar to a gas oil, but oil formulated for a diesel engine has more calcium (detergent), too much for a gas engine, and not the proper blend of antifoaming agents for the RPMs that a gas engine typically sees, which is often double that of a diesel engine.
Simply put, oil blended for a gas engine should be used in a gas engine. Oil blended for a diesel engine should be used in a diesel engine.
Valvoline is my #2 go to. I no longer have any local auto parts stores that stock non synthetic motor oil.
I typically order through Home Depot and pick up in store.
People began using/recommending diesel oil back when the gov mandated ZDDP level to be dropped, and some still recommend it because they don't know what they're talking about. For a few years, oil for diesel engines was exempt from the new mandates and maintained ZDDP levels in the 1200-1600 range, which is what old flat tappet engines were designed with. Diesel oil today has a lower ZDDP level, similar to a gas oil, but oil formulated for a diesel engine has more calcium (detergent), too much for a gas engine, and not the proper blend of antifoaming agents for the RPMs that a gas engine typically sees, which is often double that of a diesel engine.
Simply put, oil blended for a gas engine should be used in a gas engine. Oil blended for a diesel engine should be used in a diesel engine.
Quaker State make a full conventional "All Mileage" oil in a 10W-30 and a 10W-40 both sold at Walmart.