Re: Mobil 1 for an M5

[Jerry Brown <jbrown@xxxxxxxxxxxxxxx>]

A couple of other data points:

- -'93 Volvo 940 turbo, switched from dino 20W50 multi-grade to Mobil 1
15W50 at 78,000. Didn't leak then, and still doesn't now at 93,000.

- -'88 635 switched from various grades of dino oil at 190,000 to Mobil 1
15W-50. Now has 210,000 (3,000+ track miles last year), and still
doesn't leak any appreciable amount.

- -'84 533i switched from various (cheap) dino oils to Mobil 1 15W50 at
156,000 miles. Minor drips then, minor drips now.

- -93 Suburban 5.7 ltr., switched from various dino oils at 90,000. Didn't
leak then, still doesn't leak at 114,000.

YMMV,
- -jerry



Alex Leavens wrote:
> 
> > Date: Fri, 13 Apr 2001 12:12:12 -0400
> > From: "Alex Montoya" <montoya@domain.elided>
> > Subject: mobil 1 question
> >
> > i bought my m5 about 3 weeks ago. I am going to do the oil change. Should
> i
> > switch to mobil 1, and if so why?
> > what are the benefits and differences, besides the price per quart. Also
> > what thickness should i use.
> >
> > thanks
> >
> > alex
> >
> > 88 M5
> >
> 
> If the car wasn't running Mobil 1 before, don't switch to it now.
> This is because the synthetic is slipperier, and will work it's way
> between the gaskets on the motor, and you'll start 'peeing' oil.
> I had a friend who bought a used (e34) 535, switched to Mobil
> 1, had this problem, switched back and the problem went away.
> The gaskets get 'used' to regular oil, and can't handle the Mobil 1.
> Otoh, if it's always had Mobil 1 in it, then the gaskets are fine.
> 
> --alex
> 
> 85 Euro M5
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