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    Engine oil recommendations, -75 Mercedes 450 SEL

    Hi, I would be happy for recommondations for engine oil for my old Benz. It's a 4,5 litre V8 with SOHC with manually adjusted lifters (no rollers). When I bought it the engine was extremely dirty inside with a 2 mm sticky soot/oil layer almost every where. I cleaned out as much as I could and...
  2. W

    -75 Mercedes 450SEL diff oil

    I have old Merc with a non-LS diff and a 4.5 litre V8. The handbook says SAE90 for the diff but I bought Castrol SAF-XO 75W-90 (Synthetic), what do you think? Is it a good chioce? I live in Sweden so the temperature very seldom goes above 30 degrees Celsius. /Niclas
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