Guy,
I use synthetics in all my a-series engines except the old clunker motors. I
have
been doing so since 1994 and my engines don't smoke. When cold, 5W40 is
very thin and may well seep down the valve guides etc. Did it continue to smoke
when the engine was up to operating temp?
I'd suggest that there is a pre-existing problem that the synthetic may have
shown up
more. I very much doubt it is the oil's fault!
Mike
----- Original Message -----
From "Guy Weller" <guy at weller-lakes.freeserve.co.uk>
To: "Spridgets@Autox.Team.Net" <spridgets@autox.team.net>
Sent: Friday, September 14, 2001 5:38 PM
Subject: Re: [back onto LBCs] An amazing A-series engine story
> Mike,
> Do synthetics have the same viscosity characteristics as minerals?
> When my 1275 was smoking really bad, one almost universal advice was
> to make sure I was using the correct grade of oil. I am told that a
> typical modern mineral oil of 5W/ 40 grade is just too thin.
>
> Guy
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