Peter - the valves are supposed to be checked every 15k miles. When they
are, check the timing chain. A car with such low mileage may not have had
the benefit of good lubrication that comes with lack of use. My '83SD, with
223k miles, was checked about 8k miles back, and the stretch of the chain
was less than 2%. I have been using Delvac 1, now with 10k mile intervals
after lab tests proved that 5k changes were too conservative and wasteful.
Of course, the air filters and intake passages are clear, right?
Werner
'83SD 223k
'90D 228k
----- Original Message -----
From: "Peter Van Pelt" <[EMAIL PROTECTED]>
To: <mercedes@okiebenz.com>
Sent: Wednesday, January 10, 2007 8:10 PM
Subject: Re: [MBZ] Mercedes Digest, Vol 14, Issue 65, Topic 2 Mileage
I must really be doing something wrong. I have an 82 300SD with 125k
miles and drive 25 miles to work (mostly highway) and rarely get better
than 23-24 mpg (at 65-70mph). I use Red Line Diesel Catalyst and try to
watch my tire pressure. The previous owner said that he had had the
values adjusted and also reported 28 mph on the highway at 70 mph. Any
thoughts?
Peter
Peter Van Pelt
1982 300SD
Owasso, OK
