Brad Penn Oil

[Dick W.]

Re: Brad Penn Oil

back in the day i had a customer run "series 3" diesel oil in a BBC race engine i built for him. in 3 nites of racing the engine was completely worn out. i checked with the people i knew at gulf oil research labs and the told me that series 3 diesel oil did not have any high pressure additives in it and that is what is needed in a race engine. this may not apply to stock engines or even to today's diesel oil but i just posted my experience with diesel oil in non diesel application

Clemster, the Series III oils were designed for the two stroke diesel engines, specifically the 53, 71, and 92 series Detroits. It was a low ash oil that these engines required. Conversly the Series III did not work well in 4 stroke engines such as Cummins and Clatterpillars

[Duke W.]

Re: Brad Penn Oil

The "4" in CJ-4 means it is designed and certified for FOUR-STROKE engines, both diesel and gasoline, and the requisite primary and secondary categories are listed in the API donut.

Two-stroke automotive diesels have not been manufactured for years, but Chevron still offers an oil for them because there are a lot still in service, particularly in marine service. I believe the API service category is CD II and they do not carry any modern certifications for ANY four-stroke automotive engine - diesel or gas - light, medium, or heavy duty.

Don't use two-stroke diesel oil in any four-stroke engine, diesel or gasoline, and don't use a modern four-stroke diesel or gasoline engine oil in a vintage two-stroke diesel.

It was a dumb thing to do in the sixties and it's a dumb thing to do, today.

The same applies to aircraft engine oil. It is "ashless" because it contains little if any detergent/dispersant/anti-wear additive. It is not suitable in any automotive engine.

But there are always guys who think they know better and ruin good engines then blame it on the oil instead of their own stupidity.

Duke

[Clem Z.]

Re: Brad Penn Oil

The "4" in CJ-4 means it is designed and certified for FOUR-STROKE engines, both diesel and gasoline, and the requisite primary and secondary categories are listed in the API donut.

Two-stroke automotive diesels have not been manufactured for years, but Chevron still offers an oil for them because there are a lot still in service, particularly in marine service. I believe the API service category is CD II and they do not carry any modern certifications for ANY four-stroke automotive engine - diesel or gas - light, medium, or heavy duty.

Don't use two-stroke diesel oil in any four-stroke engine, diesel or gasoline, and don't use a modern four-stroke diesel or gasoline engine oil in a vintage two-stroke diesel.

It was a dumb thing to do in the sixties and it's a dumb thing to do, today.

The same applies to aircraft engine oil. It is "ashless" because it contains little if any detergent/dispersant/anti-wear additive. It is not suitable in any automotive engine.

But there are always guys who think they know better and ruin good engines then blame it on the oil instead of their own stupidity.

Duke

back in the day GM engineers told us to use ashless aviation oil to help prevent burnt pistons in race engines

[Duke W.]

Re: Brad Penn Oil

That advise is okay for racing engines that are torn down every few operating hours.

Does that apply to any of our cars?

Duke

[John D.]

Re: Brad Penn Oil

Maybe we need a separate icon above to click on for oil posts. Yep good idea JD.
Brad Penn is good stuff and should be as made north of me in Bradford, PA. Someone stayed up all night to name the oil.
Label says Break in Oil. "The Green Oil".
One of my friend who lives near there brought me two cases. It's not expensive at all.
www.amrel.com