Has anyone ever installed a Fitch fuel catalyst in there 1st gen blazer?? I saw one on Truck-U today on speed network, haha, and was wondering what kinda results someone that's tried one got in terms of gas mileage. My blazer is suffering badly from horrible gas mileage- and I've cleaned and changed every component I believe...- EGR cleaning with screened gasket replace, new plugs, cap, wires rotor, fuel filter, cleaned MAF sensor with proper cleaner, changed out air filter, seafoamed... etc. Anyone?

 

What are you calling horrible fuel mileage?? My 96 gets 20-22 mpg highway and about 15-16 in town.

 

Well I calculated around 12-13 mpg city driving, thats running premium gas(usually what i run).