Okay i've been doing some testing with this stuff. I've used it in 2 tanks of gas and am working on my 3rd. Now before I used it I was avg right around 17's. Since I first used it I got in my first tank and avg of 17.9 now that was after I had already driven 60-70 miles on that tank. Then on the last tank I had avg 19.9 with about 70 miles of that being highway the rest mostly around town with an avg speed of 50mph which put me at around 2k rpms. Now i'm working on my 3rd tank which so far I have almost 150 miles on the tank and im just past the 3/4 mark. 125 of those miles were all highway and I got the 125 before passing the 3/4 mark. Which normally I would only get 100 miles to the first 1/4 tank. So I avg about 270-285 a tank from full to gas light. I believe I will be seeing around 310-340 at this rate which should put me at an avg mpg of about 18.7-20.6 which will mostly be city travel after the 125 miles. I will update once I fill back up. So as of right now anyone who is suffering from crappy gas mileage I would buy this because I have seen very good improvements and it only cost around 2.69. So for anyone who thinks its the car getting bad mileage might wana reconsider that the gas we are buying isn't very good and should try this stuff!

 

thats awesome results especially for right now. do you use a bottle every tank??

 

Yes I put it in every time I fill up which I always go down to the gas light. The one I buy will fill up to 21gallons however they do have one that fills up to 14gallons which will be more ideal for the reg cab people with the 15.5 gallon tank.

 

Isn't that stuff supposed to do it's thing and be done? You should have to keep using it everytime you fill up. Your not saving any money that way!

 

Your thinking of the fuel injector cleaner. Which this is not that. It is a gas treatment. It treats the gas that you put in everytime and you have to put the stuff in every time to treat the gas. You can go look on the site and it says to use it on EVERY fillup. This does clean some parts. however is mainly there to improve the quality of the gas. So just throwing one bottle in will only affect that tank of gas and not any others.