Douglas Matteson asked 2 days ago
My RV is smokin and chokin. I tried your B-12 Chem and it sounds better but now shiney black liquid is dripping out the tailpipe. What should I try next?
1 Answers
chemtooler Staff answered 1 day ago
The level of buildup may be more than our standard product can tackle. If the RV has a gasoline engine, try Berryman B-12 CHEMTOOL TOTAL FUEL SYSTEM CLEANUP (part #2616) or B-60 HIGH-MILEAGE FUEL SYSTEM REJUVENATOR (part #7516) at 1 fl oz/gal. Both products will give you the deepest clean we can offer.
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