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Old 05-20-2003, 11:23 PM
cbdo cbdo is offline
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Join Date: Dec 2002
Location: Grand Rapids, MI
Posts: 766
My 560SL (145k) shows the same manual recommendations as mentioned above; 10W-30 for temps to 50F only, 20W-50 for temps always above 32F. Somehow at the last oil change a couple of weeks ago, 10W-30 was put in, and I since noted a light bit of blue smoke on starting off from rest after idling, more with prolonged idling and when hot, as well as consumption of a quart per 300-400 miles. No later than this weekend, I'll get the light stuff out of there and 20W-50 put in; I expect to see it improve.
I can think of no reason not to follow the manual on this!
Craig Bethune

'97 SL500, 40th anniversary edition

'04 Olds Bravada (SWMBO's)
'06 Lexus ES330
'89 560SL (sold)

SL--Anything else is just a Mercedes.
(Kudos to whoever said it first)
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