I needed oil for our '91 300D (182K mi) and finally found some at Advance Auto - "M1 Turbo Truck" in 5W40. I hesitated at 1st but the bottle says "substitute for 15W40"

I haven't seen this before. The present oil (15W40 M1) has about 4k on it so I'm getting ready. But since we're having 100F days here I'm wondering if it's a good idea to put a 5W in it?

I'm seeing oil pressure around 1.5 bar when idling at 210F.....

any comments?

Thx
LarryT
91 300D


Import - Export
Putting Buyers & Sellers Together

--------------------------------------------------
From: "Allan Streib" <str...@cs.indiana.edu>
Sent: Saturday, July 24, 2010 10:07 AM
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Subject: Re: [MBZ] Report-back on engine lurch-restraint struts

Curt Raymond <curtlud...@yahoo.com> writes:

The Car Quest brand 15w40 is cheaper by the gallon than ANY oil at the
big FLAPs too and only marginally more expensive than the cheapest
Wal-Mart has.

But what's in the bottle?  Is it recycled?

Allan
--
1983 300D

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