Here's the chart --
From 8/95, this is the temperature/viscosity chart from the Factory Approved Service Products for Passenger Cars leaflet. I'd remembered the approved oil classification wrong: it's actually SH.
As you can see from the third bar from the right (10W-30 CCMC G5), the temp range is from about -10 F./-25 C. to + 90 F./+30 C.
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-- Paul W. (The Benzadmiral)
('03 Buick Park Avenue, charcoal/cream)
Formerly:
'97 C230, smoke silver/parchment; '86 420SEL, anthracite/light grey; '84 280CE (W123), dark blue/palomino
Last edited by Benzadmiral; 10-02-2006 at 02:00 PM.
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