I thought it was pretty funny.
Mirek
-----Original Message-----
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Bob
Spidell
Sent: May-11-17 9:27 AM
To: healeys at autox.team.net
Subject: Re: [Healeys] Valvoline VR1 20W-50 Redux Redux
Uh... the '20W-60' was a (bad) joke, in reference to 'The plot
thickens.' But, good point anyway, Kees.
bs
On 5/11/2017 2:06 AM, Oudesluys wrote:
> I am not a 100% sure but I think the highest spec oil to be used in
> classic car engines is SG/SH. 20W60 may interfere with the oil flow as
> 20w50 is the usual specified oil for classic cars. The higher the
> numbers the thicker the oil hence a higher oil pressure but a reduced
> flow. Oil flow however is all important in an engine, more than
> pressure (within limits of course).
> Kees Oudesluijs
>
>
> Op 11-5-2017 om 1:07 schreef Bob Spidell:
>> I was at my favorite local parts house today and noticed, as reported
>> by others that VR1 is back on the shelf after mysteriously
>> disappearing a year or so ago. Good deal, I think, then I noticed
>> the label is slightly different than the stock I bought a year or so
>> ago; in particular, 'HIGH ZINC' is shown prominently on the front
>> label (my stash doesn't). Also, the 'new' stuff is rated SAE SJ
>> only, whereas my bottles say 'EXCEEDS API SERVICE SGCD And All
>> Pending API Gasoline Categories Exceeds API Services SN/SM/SL' The
>> cam makers generally say that SN and SM are not suitable for flat
>> tappet engines (not enough zinc and phosphorous). SN/SM--dunno about
>> SL--are supposedly OK for engines with catalytic converters, which
>> implies less zinc.
>>
>> Anybody know for certain know what gives? My theories are:
>>
>> 1) Valvoline pulled their stock and simply relabeled their product SJ
>> to make it clear it shouldn't be used in cars with cats
>>
>> 2) The old VR1 WAS acceptable for cars with cats, implying zinc
>> content of no more than 800PPM or so, and they have reformulated the
>> oil with more ZDDP, which required the relabeling. I hope this isn't
>> the case, as I bought a boatload of it because it appeared to be an
>> off-the-shelf oil with decent zinc and phosphorous content.
>>
>> The plot thickens (it's now 20W-60).
>>
>> Bob
>
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