crw

I have been using Brad Penn oil for a while in my 993. Is there any advantage to switching to a V-Twin oil on my next oil change.

If so: - Mobile 1?, Valvoline, other brand?

rlme36

Probably not given that BP is high in the add pack that our cars seems to due well with already

Unless you've done an oil analysis and have specific wear issues you are trying to rectify.

Rob

LexVan

Brad Penn is a very good product. It's a semi synthetic.
V-Twin is a full synthetic.

Change at least every year, or overy 5,000 miles. You're fine.

ilko

You know those two 964s that Rothsport built and ran in the Baja 1000 a few months ago? I was looking at the photos in the August issue of Panorama and guess what - they ran Brad Penn oil. There are pictures of the black 1qt bottles in the article. That speaks volumes to me and is as good of an endorsement as it gets.

sdm100

what is the best grade of BP? I am currently using mobil 1 15-50W

LexVan

For non winter use....20W50.

pp000830

Little known facts about oil:

Grades of oil.
Motor oils are derived from base stocks. That is, a generic oil base is modified with additives to produce a lubricant with the desired properties. A base stock oil with no additives would not perform very well at all. Base stocks are classified by the American Petroleum Institute (API) and fall into one of five categories.

Group I and II - these are mineral oils derived from crude oil
Group III - this is a highly refined mineral oil made through a process called hydrocracking. In North America this group is considered a synthetic oil, for marketing purposes.
Group IV - these are true synthetic oils, known as Polyalphaolefin (PAO).
Group V - these are synthetic stocks other than PAO's and include esters and other compounds.

So most oils labeled synthetic are just an enhanced version of regular oil as they are based on oil out of the ground.
I use a Mobil 1 oil with a Zink compound of > or = 1000PPM. A Group III oil.

Not Sure what Penngrade synthetic blend is. A mix of Group II & III for marketing purposes? I guess reading the API label should tell.

mpruden

Wow - nice eyes. Looks like I'll continue to use and recommend Brad Penn. whoops - I mean PennGrade

fsa

Jeff, Rothsport, and Jeff Zwart did the Mexico 1,000, a 4-day race, getting some sleep at night- when car repairs were "finished"!!
The Baja 1,000 is a non-stop slog.
Have not seen the article, heard their engines were near flawless throughout. Suspension, clearance, and 2wd were challenging issues.
They use Brad Penn in everything, including my lowly car.

ftlaud911

Just got my case of BP oil. Read tons of threads and consensus was BP or the Joe Gibbs. Evidently from the reading the air cooled cars need higher zinc count. Plan to do my first oil change on my new to me 993 this weekend.
On a side note I like LiquiMoly oil in my other cars. Oil is personal choice and from what I can gather as long as you change them frequently (5000 or 1 yr) they should all work fine.

nine9six

How about that...Just in time for an end-of-summer, oil thread!

It's very difficult to move into fall without it!

sacman

It might be a placebo effect but my recent change from Mobil1 20w50 to a 50/50 concoction of Mobil1 V-twin + regular 20w50 seems to make the car run cooler as observed by oil temp gauge.

LexVan

Fresh oil runs cooler. For how long, depends on several factors.

MarinS4

Both are great products with good additive packages.

I prefer synthetic over BP because

Flows better during cold starts, this is the source of most engine wear.
Less coming in my turbos
Tolerates higher temps (not really an issue in this application.

I can understand why Rothsport uses BP. I am sure they have oil temps under control.