[Shotimes] What Cause a car to run too lean?

[Ron Porter]

I believe this is urban legend. A few mfrs have gone to synthetics without
engine changes. Synthetic or dino looks the same to the engine, it isn't
"slipperier", it just has more durable heat & wear characteristics.

Ron Porter

-----Original Message-----
From: shotimes-admin@autox.team.net [mailto:shotimes-admin@autox.team.net]
On Behalf Of Kenneth Epperly
Sent: Saturday, January 08, 2005 2:26 PM
To: Shotimes@autox.team.net
Subject: Re: [Shotimes] What Cause a car to run too lean?


They do hone the cylinders differently for the Syn engine. My daughters new
VW Turbo Desiel uses Syn, first 2 oil changes at 5k each then 10k for the
rest. I will run a shorter intervial than that.

        Ken

> No, it was NEVER proved at all that synthetic has any bad
> effects on the cams or anything else.  What is going on is
> that cam lobes have been going bad on cams since the first
> one was made.  It has to do with the quality of the metal it
> was cut from, and the hardening process after that or the
> metal or hardening of the shims or other parts that touch
> the cams.  Oil is almost never the problem, expecially a
> quality synthetic.
>
> Sometimes it happens, and in the very few cars that have had
> bad cams (other than V8's!) if they were using synthetic,
> then either an owner or mechanic jumped to a conclusion that
> they can't support.
>
> When most top manufacturers now put it in at the factory,
> you can even get rid of the old saying that synthetic is too
> slick to let engines break in properly.  Add it to the
> dis-information that synthetics leak more...Not true.
>
> Don Mallinson
>
> Hartberger, Jason M. AT3 wrote:
> > Was it proved that synthetic oil caused your cam lobes to go out? seems
> > rather like a freak appearance to me... like using plastic windows in
future
> > liners because the Titanic hit an iceberg (they didn't do that)... not
that
> > I'm dissing your judgement, just seems weird to me.
> >
> > Jason
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