Which 300D do you own? For the five cylinder, you need 8 quarts and for the 6 cylinder, you need 8.5 quarts. I recommend Castrol GTX 10W-40 for year-round use. Works well for me.


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Rgds,
Aaron Greenberg
MB technician
Precision Motorcars, Cincinnati, Ohio
'67 250SE Cabriolet
'77 450SL
'80 300SD
'85 380SE
'89 420SEL
'93 300E 2.8
'72 Alfa Romeo 2000GTV
'74 Jensen Interceptor Mk.III
'81 DeLorean DMC12