Tom,

Thanks for your response. I dread the idea of draining 21 gallons of diesel. I'm not really set up for this. The car idles hot like it's still cold. Is there really damage possible? The car runs OK at higher speed with some loss of power. I guess draining is the safe way but it could be a total coincidence that someting else ran afoul when i filled up. I'm not sure which additive to use since I'm not sure what the problem is. If there is water I may need one additive and if it's high octane contamination maybe i need a different additive. I'm going to drive back to the filling station today to ask them if they've discovered a problem or had other complaints with this pump. I'll start throwing in additives too.

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1972 450SL
1982 300D Turbo