Originally Posted by Phateless
injector cleaner is like 5 bucks at chevron. that B&G 44K shit is pricey tho, it's like $20-$30. just run regular injector cleaner from any gas station, put it in on an empty tank and drive around for a day or two, then fill up with premium. might help, couldn't hurt.

I HAVE HEARD THAT PUTTING INJECTOR CLEANER IN AN EMPTY TANK CAN BE BAD ON FUEL LINES AND INJECTORS, AS IT IS A VERY CAUSTIC SUBSTANCE, I WOULD RUN AT LEAST HALF TO THREE QUATERS OF A TANK WITH THE INJECTOR CLEANER, BERRYMAN B-12 HAS ALWAYS WORKED GOOD FOR ME, BUT THERE ARE SOME NEW THINGS ON THE MARKET, READ THE LABEL FIRST. HOWEVER, IF IT'S THAT BAD ON GAS MILAGE I'M THINKING THAT IT PROBBABLY NEEDS TO BE PROFFESIONALLY TUNED! YOU SHOULD GET WAY MORE MILEAGE THAN THAT!!!