Hello — What’s the difference between the Total formula (#2616) and the High Mileage formula (#7516)? Your description for the 2616 states it’s your strongest — is 7516 less strong? If so, why is that one better for higher mileage cars?
Both products use the same powerful detergent package, but our new Berryman B-60 HIGH-MILEAGE FUEL SYSTEM REJUVENATOR (part #7516) actually has just a bit more of the detergent package as well as a different solvent package. Either product will work very well in this application, but the 7516 is slightly better-suited to clean-up of older, neglected fuel systems.