[Shotimes] Quick informal survey of Mobil 1 users

[James White]

Got the '93MTX new and went to Mobil 1 at the first oil change.  Used a few
other kinds of synth on and off, but mostly 10w30 M1.  Sure it leaks a bit
but nothing that appears to be major.  After 280k, the rod bearings are, I
think still in good shape.  A few months ago, I was passing a SOB minivan
that sped up as I got close, so I had to keep my foot in it. Hit the rev
limiter in third and since the road was clear, close to that in fourth!
High stress and still no problems.

Got the '95MTX with 47k.  Now has 254k.  Have been running 10w30 M1 ever
since I got it.  It leaks a fair amount more than the '93MTX and frequently
uses a quart in 900 miles.  At the last 2 conventions, it ran a lot of track
time and hardly used any oil, but the hills of West Virginia and
Pennsylvania used a full quart.  Figure that it is the valve guides.  But I
oil analysis (several) tells me that the rod bearings are in good shape, so
I am keeping with M1.  Even at $4+/qt. M1 is a whole lot cheaper than new
valve guides or rod bearings.

regards, Jim White - greensho@crown.net
Valparaiso, Indiana

----- Original Message -----
From: "Carl Prochilo" <gr8sho@prochilo.myserver.org>
To: <shotimes@autox.team.net>
Sent: Sunday, August 03, 2003 2:29 PM
Subject: [Shotimes] Quick informal survey of Mobil 1 users


> Seems like people needs something to talk about, so here is a question for
> people who are using Mobil 1 in their SHOs.  The criteria to answer this
is
> as follows.
>
> 1)  Gen 1 or Gen 2 SHO.  ATX or MTX is okay.  (want this focused
> specifically on the Yamaha.)
> 2)  Car has over 80K miles, and
> 3)  You've been using Mobil 1 for more than 20K miles.
>
> So the question is, does your motor leak oil past any of the seals as
> evidenced by excessive oil consumption or stains below the car.  I'm
curious
> to know either way.
>
> History:  I know of two cars that have had leaks using synthetic oil.  My
> original 3.0L is one of them.  At 90K I made the switch.  I don't remember
> exactly when the leaks started, but start they did.  Engine was real messy
> on the bottom end.  Top end was clean.
> Mobil 1 is presently advertising that engines using their product will
cause
> virtually no wear at 200K miles.  This seems appealing on the surface
given
> the problems associated with typical rod bearing failures on these motors,
> however I'm highly suspicious that Mobile 1 will accelerate leaks from
> seals.
>
> Cheers,
> Carl Prochilo
> 92 Ultra Red Crimson
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