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No additive like that will truly boost MPGs... Keeping the engine cleaner will help with fuel efficiency, which leads to better MPGs.
It does look to be a pretty good cleaners, but I've always used Seafoam twice a year and it seems to work well enough for me.
It does look to be a pretty good cleaners, but I've always used Seafoam twice a year and it seems to work well enough for me.
