<VV> Best Oil & STP

[J R Read]

Odd that the oil topic came up just after a little "experiment" at work.

A few days ago, one of the guys had Regular oil 5W30, Mobil1 5W30, A bottle 
of STP and a flat edge (relatively heavy) screwdriver.   He dipped the blade 
of the screwdriver into each and had several of us (taking turns and 
cleaning hands and screwdriver each time) holding the screwdriver tip 
between thumb and forefinger with palm above and handle of screwdriver 
hanging down.  Easy to do with nothing on the blade AND with oil on it AND 
with Mobil1 on it.  But, even though it was more viscous to the touch, it 
was virtually impossible to keep the screwdriver from falling when it was 
dipped into the STP.

Now, this makes me think that it might be a good idea to add some (how 
much???) STP at oil change time.  I looked at their web site and could not 
find any specifications for STP.  I was looking to see if there was a 
statement about ZDDP content, but was unable to find anything.

Does anyone on VV have a clue as to ZDDP content of STP and what would be an 
appropriate ratio of oil (either type) to ZDDP if adding at oil change time. 
I'm not condoning this, just trying to investigate at this point.

Thanks.

Later, JR
CCE CORSA CORVANANTICS SCG member
'61 Rampside Standard 4/110
'65 Monza Convertible 4/140
"Keep the Love Alive"

----- Original Message ----- 
From: <BobHelt at aol.com>
To: <jay.pitchford at gmail.com>; <virtualvairs at corvair.org>
Cc: <Mlevair at sbcglobal.net>
Sent: Wednesday, January 04, 2012 1:58 PM
Subject: Re: <VV> Best oil for Corvairs


> I've heard that Brad Penn is not rated by the API. Is that correct? If so,
> is that good?
>
> Regards,
> Bob Helt
>
>
> In a message dated 1/4/2012 11:09:12 A.M. US Mountain Standard Time,
> jay.pitchford at gmail.com writes:
>
> Brad  Penn oil has plenty of ZDDP in it for sliding friction
>> surfaces like  camshaft to lifter and fuel pump rod to  eccentric.
>