[TR] Fwd: Re: Regarding Oil (long, Pt. 1)

[J.C. Hassall]

I sent this last night but it bumped up against the verbosity 
limiter; this is part 1:
>Date: Thu, 07 May 2009 21:23:48 -0400
>To: Triumphs at autox.team.net
>From: "J.C. Hassall" <jhassall at blacksburg.net>
>Subject: Re: [TR] Regarding Oil
>
>At 01:57 PM 5/7/2009, jimmuller at rcn.com wrote:
>>David L wrote:
>> > a racing oil that is "not street legal" has a very short
>> > sump life and is intended to be used and dumped with a high
>> > frequency...  The reason is; it does a very good job for a
>> > very short (by comparison) time.  Amounts of ZDDP in excess
>> > of 1200 - 1300 ppm are not good for your  motor...  As a
>> > result of this article I chose Valvoline VR-1 20/50 Racing
>> > because of its availability and ZDDP levels in the 1200 -
>> > 1300 ppm range.
>>
>>This raises a few questions, if you please.  Can we assume that 
>>street-legal VR1 does have a long sump life even though the "not 
>>street legal" does not?  That seems to be your implication.
>>
>>Secondly, if the "not street legal" stuff is "not street legal" 
>>because of its ZDDP content, how can the street-legal VR1 stuff 
>>still contain ZDDP too?
>
>I posed this question to Valvoline:
>I have a flat tappet engine I'm about to break-in.  Could you pls
>tell  me, between VR-1 30wt and Valvoline Racing Oil ("not street legal")
>20W-50, which has the higher Zn and P content?  It appears from
>the  data sheets that VR-1 does, but that seems contrary to what the cam
>manufacturer says, and to reason, since more Zn would damage
>catalytic converters faster.




--
J.C. Hassall
Blacksburg VA
'63 TR4 in autox preparation
96% finished, 90% to go