Date registered: Dec 2008
Vehicle: w204 (C350ELE)
Location: Miami, Fl and Mar del Plata, Argentina
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Wow, this is a broken record. Perhaps we wait for the DVD or the movie...
Pre-MY2005 with FSS system cars may use MB 229.3 (gasoline engines) or 229.31 (diesel engines) specification oils.
MY2005-MY2010 cars must use MB 229.5 (gasoline engines) or 229.51 (diesel engines) specification oils. These oils may also be used in FSS system cars of previous years.
Viscosity should be chosen according to SAE spec requirements for the temperatures in the locales of use. It is to note that only the low temperature average is critical (e.g. 10W for no less than -4degF, 15W for over 5degF, 20W for over 23degF), whereas 5W and 0W go well below those cited. The final viscosity should be chosen according to the kind of driving is done: 30 OK for highway driving; 40 for city transit, stop and go, short trips; 50 and 60 for track or very high temp operation.
Oil bottle must have specific MB spec number on the label. Note that oils recommended for diesel (MB 229.51/229.31) have less sulfur than a gas engine would benefit from and should not be used in gas engines, and vice versa (no MB 229.5/229.3 for diesels) for diesels.
Brands featuring MB 229.5 5W40 oil: (alphabetical order)
Chevron Supreme Synthetic Motor Oil
Coastal Full Synthetic SM 5W40
Elf Excellium Full-Tech 5W40
Gulf Formula GX, SAE 5W40
Mobil 1 Formula M 5W40
Motul 8100 X-max 5W40
Pennzoil Platinum European Formula
Q Horsepower Full Synthetic
Quacker State Synquest
Shell Helix Ultra
Texaco Havoline Synthetic Motor Oil
Total Quartz Energy 9000 5W40
Valvoline Synpower HST
VERY IMPORTANT:For those who do not believe in freedom of choice, none of these will kill your engine, guaranteed, BUT they ought to be used with a fleece filter (e.g. Mann 715-8x). Otherwise paper filters will desintegrate, more than render ineffective, way before the oils disintegrate.
Remember, oil is the cheapest part to keep your engine turning happy. JV
P.S. I'm just an aficionado, I don't sell or am involved in the car or oil business.
Last edited by JoeVal; 11-13-2009 at 07:17 PM.