What motor oil is best for my aircooled Porsche?

good (but long) read

http://www.lnengineering.com/oil.html

I wish I could afford a set of LN cylinders.....

Charles and I have worked long and hard to gain the data to write that article...

32 months and counting....

I used the LN cylinders. After about 20k they seem to be everything they are said to be.... engine runs cool at the heads, makes a lot of HP, I like it.

Would I spend the $$$ to do it again? Yes I would...JE pistons, LN Nickasil cylinders.....ceramic lifters, pent roof case, CE heads, etc etc....

And yes, Charles at LN is great to work with and is extremely helpful and knowledgable.....I higly recommend him and their product(s) as well as the collateral work done such as this article....

Paul,

Brad Penn or Swepco will work fine.
I have a distributor close by if you can't find a local source.
BTW, still haven't received any packages.........

Jake Raby posted some time ago a summary of some testing he did regarding oils. I believe that Brad Penn came in first, with Royal Purple in second. Both of these were considerably better at retaining their lubrication characteristics under high heat than regular oils. I can't easily get Brad Penn here, so I'm running Royal Purple. Correct me if I'm wrong, Jake.

Terry - i wasn't asking what oil to use - just posting the title of the article in the title of the thread. :)

Brad Penn is mandated in ALL my engines and kits, we released a bulletin to this effect in August of 2007...

Royal Purple Max Cycle is the only substitute, we use it only in race engines for the added HP over Brad Penn...

...maybe the question that should be asked is...

...What motor would go best with my Brad Penn Oil?

WHAT?!

Jake,

I think I saw reference to Brad Penn 20-50 on your site.

Is that what you recommend for your Type IV engines?

Would you also think 20-50 would be suitable for a Type 1 not driven in cold weather?

Thanks.

"Is that what you recommend for your Type IV engines?"

No- Its what I MANDATE..

Meaning IF you have one of my engines of DIY kits and don't run the oil- we won't even talk if you have an issue!(ok, thats a bit of an exaggeration, BUT I do take this very seriously and will slap the wrists of those too dense to listen!)

Today it is possible to pour "liquid death" into your engine. Brad Penn is the only oil that has exceeded my expectations in the 30+ months we have been doing oil research, virtually testing every oil available in the US and even some from Europe.

Jake,

Thanks for your reply.

I wasn't really asking about using Brad Penn oil. I am already convinced.

I wanted to check if it is 20-50 viscosity that you recommend and if so, for Type 1 as well.

Thanks.

That article has changed a lot since I read it last. As per the last edition, I changed to Mobil1 V-Twin 20/50. A bit pricy but seems to run OK.

~WB

Jake, what's your take on Swepco?

The article will continue to change as we get in new results, new oils and get more data...

Swepco is being tested now..

There are some oils (2) that are as good as Brad Penn, BUT they cost 3-4 times more money..

Jake

what oil do you recommend for us European Type 4 users who cannot get Brad Penn oil?
Rob