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Author Topic: engine and gear oil  (Read 178 times)

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Offline MikeP

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engine and gear oil
« on: July 15, 2019, 03:40:27 PM »
has anyone ever used brad penn oils (penn grade 1) the mechanic that works on my dads ford truck told me about it after i told him i bought a cj3a and said it has a very high zinc content and so on and so thats most likely what im going to feed my engine after doing a oil change and then eventually the gears in the tranny and transfer case and axles

https://www.ebay.com/itm/5-Quarts-of-Brad-Penn-Grade-1-SAE-10W-30-Semi-Synthetic-Racing-Engine-Oil/302189965811?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

https://www.ebay.com/itm/Brad-Penn-023-7729-Multipurpose-Classic-GL-4-80W90-Gear-Oil-1-Qt/401281614254?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
1950 willys cj3a

Online aboyandhisdog

Re: engine and gear oil
« Reply #1 on: July 16, 2019, 08:39:55 PM »
Never heard of it.  Give it a try and let up know how you like it.
Tom


Online Rus Curtis

Re: engine and gear oil
« Reply #2 on: July 16, 2019, 09:39:52 PM »
Want to burn up a whole weekend reading stuff?  Google "ZDDP Oil Comparison"

Here's a few:
http://www.sccoa.com/forums/showthread.php?136304-What-oil-brands-offer-the-best-protection-***Good-read***

https://www.corvetteforum.com/forums/c3-tech-performance/2484100-list-of-flat-tappet-oils.html

https://www.enginebuildermag.com/2012/03/zddp-when-where-what-why-how/

I noticed the oil you are asking about is on the comparison list.
'54 CJ-3B "Green Gruntt"
Bantam T3-C

Offline MikeP

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Re: engine and gear oil
« Reply #3 on: July 17, 2019, 06:32:20 AM »
that was some good reading about the oils and brad penn seems to be a great oil to use from that list
1950 willys cj3a

Offline Brad Y.

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Re: engine and gear oil
« Reply #4 on: July 19, 2019, 03:08:14 PM »
High zinc seems the way to go from what I have read as well.

Here is a link to the 3B page with some more nice reading on engine oils. http://cj3b.info/Tech/OilWeight.html

The evolution of oil section is the one that caught my eye and came to mind when I read this post.

Offline johnrb3b

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Re: engine and gear oil
« Reply #5 on: July 30, 2019, 11:18:57 AM »
High zinc oil is great for flat tappet engines.
This is what I use.
It also minimizes moisture buildup in engines that sit more than run.

https://inrccca.org/product/classic-car-motor-oil/

Here's an article about it:
https://www.hagerty.com/articles-videos/articles/2013/08/07/Classic-Oil
1946 2A - - - 1949 me - older than most of my Jeeps
1954 3B - - - 1957 Wagon - - - 2010 4-door JK
past Jeeps ---> '54 3B - no tub --- '59 3B - no engine
past addiction - VW ---> '69 bus --- '70 camper

Online Rus Curtis

Re: engine and gear oil
« Reply #6 on: July 30, 2019, 11:33:08 AM »
John,
This is what I bought.  I'm using AMSOIL to break in then the Classic Car oil for a few oil changes after that (for the same reasons).

I'd read on other forums that even Rotella was reducing ZDDP content to comply with mandate. 
'54 CJ-3B "Green Gruntt"
Bantam T3-C

Offline johnrb3b

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Re: engine and gear oil
« Reply #7 on: August 02, 2019, 03:20:24 PM »
Yes
I've seen the lead content of some Rotellas slowly being reduced over the last few years.
1946 2A - - - 1949 me - older than most of my Jeeps
1954 3B - - - 1957 Wagon - - - 2010 4-door JK
past Jeeps ---> '54 3B - no tub --- '59 3B - no engine
past addiction - VW ---> '69 bus --- '70 camper