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Old 03-28-2000, 09:35 AM
matthew merrill
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I had to add 1 quart of oil to my 78 300D the other day. I changed the oil 1,100 miles ago.
This seems exessive to me. The car has a new top end done by the dealer here. (rebuit head, new cam, timing chain etc..) 144,000 mi on origional lower end.
It does seem to smoke a lot on first start up, yes it is blueish.
I average 22 mpg. I travel 20 mi a day total, 2 miles in stop and go traffic.
I have used fuel additives before. It seems to help smooth the engine out and I guess improve fuel economy a little.

Any suggestions?
Thanks, Matthew

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Old 03-28-2000, 09:48 AM
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This oil usage does not sound to me like it's totally excessive, however, after a top end, the valve guides and seals should have been taken care of. The BLUE smoke on startup could indicate valve guide or seal problems.

Good luck,

Larry Bible
'84 Euro 240D, 516K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in
Mercedes automobiles
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Old 03-28-2000, 01:15 PM
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My manuals states 1 qtr oil / 2,000 miles is consumed so you are ridding a little more oil than normal.

'89 420 SEL
'90 300 SEL
'84 300 SD (sold it)

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