Hi Glenn,
Your idea has merit, my '96 Dakota was leaking badly from the rear main seal,
it was losing a qt in like 500 miles and I had no job or garage or tools to
work on it (this was before I had a house) so I tried synthetic in it. After
~20,000 miles the leak had slowed to ~1qt in 3,000 miles and stayed that way
for ~100,000 more miles until I got rid of the truck. You have to be patient
though. My '78 240D leaks/consumes a fair amount, I haven't really tracked it
but I'd say 1qt in 800 miles or so but I've gone to M1 and its improving slowly.
The 5w40 doesn't qualify for the deal but the 15w50 does. While its not as
light an oil as the 5w40 and not as good for cold weather its a considerable
improvement in the cold over conventional 15w40.
-Curt
Date: Tue, 30 Nov 2010 17:45:47 -0500
From: glenn brown <g_010...@hotmail.com>
To: <mercedes@okiebenz.com>
Subject: [MBZ] $3.99 Mobil One, addendum
Message-ID: <snt140-w178b3588245820edfe49c0f0...@phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Guys,
I recently purchased an '85 300TD from my brother and this car had been
previously diagnosed with valve stem seals which need replacing as
there's considerable oil smoke after startup from cold but disappears
after ~ 5 min. of running. Since I seem to recall the honorable Dr.
Booth indicating that synthetic oils tend to swell seals more than
conventional/dino oils, I thought I'd try synthetic oil in the TD for a
couple oils changes to see if this improves things before I seriously
consider trying to replace the valve stem seals. Since I've only got a
few hundred miles on the first synthetic oil change in the TD and the
"offer" at Advance would be just too good to pass up, I thought I'd
purchase some of the Mobil 1 5W-40 diesel truck oil ahead of time for
the next oil change but the Advance Auto Parts store employee indicated
that this oil is not on sale and I tried the purchase on the Net
approach, where someone has indicated that the discount would show up in
the "cart" electronically . . . Note: this does not occur.
G. M. Brown
Brevard, NC
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