Turbo Diesel Inline-6: 1986 Mercedes-Benz 300SDL W126

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Most of the aging Mercedes-Benz 80s/90s oil burners driving around the streets of SoCal have the inline-4 or inline-5 engines; particularly of note is the 3.0 liter OM617 found in the W123 platform with the 300D badge on the back. However, a 6-cylinder version of that same engine called the OM603 was not as reliable […]

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