Seafoam sucks compared to DP. I have run seafoam thru and then dp 3 mos later and the dp did a much better job of cleaning things.

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1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42