![]() |
|
|
|
Registered
Join Date: Oct 2006
Posts: 241
|
Brad penn in regular cars???
82SC
I have followed many of the debate threads and the recent push to brad penn oil. Question; would it (BP) be recommended for daily driver regular performance watercooled cars? I have an 07 SRT8 cherokee that I use synthetic with but if the sc gets penn might as well put it in the jeep. Thoughts? |
||
![]() |
|
Registered
Join Date: Jul 2007
Location: Halifax, Canada
Posts: 1,216
|
I would be worried about your CAT. I think a modern vehicle was designed and is suppose to use a modern oil. Just my 0.02
|
||
![]() |
|
Registered
Join Date: May 2006
Location: sacramento, ca
Posts: 98
|
I dont think it will effect the engine. one of the main reasons they have changed oils so much is emissions and catalyst failures. Definitely dont do it before your warranty is up, including your emissions warranty. just a thought.
__________________
1985 911 "turbo look" 2008 Foose F150 (free truck) 2002 Mercedes Benz S55 |
||
![]() |
|
Registered
Join Date: Nov 2005
Location: CA
Posts: 7,286
|
so that mean using Brad Penn, we should be ready to replace cat a little more often?
__________________
Fat butt 911, 1987 |
||
![]() |
|
Registered
Join Date: Jan 2005
Location: Atlanta, GA
Posts: 1,392
|
What class of oil does the owners manual recommend?
|
||
![]() |
|
Registered
Join Date: Oct 2001
Location: Momence, IL 60954
Posts: 1,911
|
I would have no fear about the cat being damaged by the Brad Penn - these cars were designed to run oils with Zn and P levels up to about 1450 ppm, which is what Redline, Swepco, all have. The biggest consideration about street use and drain interval is the oil's TBN, which the Brad Penn is ~10 and the Swepco is ~14, so both are good for daily drivers. Real racing oils and motorcycle oils typically have less detergents, so a lower starting TBN requiring more often changes, and usually have a bit more Zn and P at levels high enough to damage catalytic converters over the long term.
I know that even up to 2004, the owners manual called for an SH or SJ rated oil, and Brad Penn is SJ rated. Regarding your SRT/8 Jeep, it's a totally different beast. What oil does it call for? Hopefully not a 5w20!
__________________
Charles Navarro President, LN Engineering and Bilt Racing Service http://www.LNengineering.com Home of Nickies, IMS Retrofit, and IMS Solution |
||
![]() |
|
![]() |