Quote:
Originally Posted by 94Wagenmeister
OK Kent, against my better judgement, I'll engage you. Find me a major oil company 15W/40 that does not meet MB spec... Rotella? Check. Delvac? Check. I think your baloney is a bit thin. You guys driving new Benzes get all bent about this stuff. So long as you don't run too thin an oil in the W124, they'll do just fine. They like the syrupy stuff. And yes, I am going to Pep boys tonight to see if their 15W/40 meets the 'spec' of 1994/95. Geesh. Next thing you know you're going to recommend synthetic....
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The OP has a 97 S500 which is a W140. With FSS he should follow the MB spec recommendations in the very useful doc in Kent's link. Also, don't forget fleece filter.
Generally, the older the car the less stringent the oil requirement. When I was a kid, a quart of motor oil was a quart of motor oil -- no viscosity rating. Of course, I'm over 21 now.
