I have used MMO, in amounts varying from 6 to 16 ounces, to quiet noisy
lifters. I have not had any problems with the oil light flickering. However,
when I put in the larger amounts, I have changed the oil shortly thereafter.
I am using Castrol 20W50 and Mann/Mahle filters.
I recently returned from a trouble-free 2,500 mile trip from Arizona up
through Utah & Idaho to Montana. I averaged 21.8 mpg, with the best 23.4 and
worst 19.0. Very little freeway driving, and a lot of steep mountain grades,
one of 13% to over 10,300'. That tends to drag my mileage down.

Jerry
'90 Westy - 137K miles
+
----- Original Message -----
From: "Greenamyer, William L" <William.Greenamyer@WEST.BOEING.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, September 17, 2001 5:53 AM
Subject: Oil pressure with Mystery oil

> Something funny happened on the way to work this morning.  I put Marvel
> Mystery Oil in the Vanagon two weeks ago and have not driven it much
since.
> Finally got around to driving it to work and for the first time ever, it
> gave the oil flicker at idle.  Didn't keep doing it but still put a scare
in
> me.  I put a couple ounces in the oil.  Is it characteristic that this can
> occur due to the thinning of the oil?  Nothing else has changed from what
I
> have been using for quite a while now.  Oil and filters are the same.
Just
> added maybe 3-4 ounces of Marvel.
>
> William