[Healeys] Engine Oil - VR1-20/50

[Robert Blair]

Dick,

What:  Valvoline - VR1 Racing 20/50

Why: it is 20/50, it is formulated for high temp/prolonged stress, AND it has
higher levels of Zinc/ZDDP additives that were present in the period oils but
are absent/reduced in modern oils as they trash catalytic converters.  A
threshold level of ZDDP is needed in older design/metalurgy engines that have
flat cam followers et al - as Healey engines have.

Robert N. Blair  Yellow 65BJ8  rnbmail at yahoo.com
   



--- On Thu, 4/2/09, Dick Matson <medlabinc at msn.com> wrote:

> From: Dick Matson <medlabinc at msn.com>
> Subject: [Healeys] Engine Oil
> To: "AustinHealey List" <healeys at autox.team.net>
> Date: Thursday, April 2, 2009, 8:45 AM
> Time for an oil change.
>
> Who likes what engine oil in their 6-cylinder Austin
> Healeys - and why ?
>
> DM / Bj8
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