Originally Posted by tjkj2002
Never add anymore fuel additives then what's already in the gas you pump in(which is a buttload these days) more then once a year.To much additives will fry your cat's fast.
Yeah, there's a lot of additives in gas. Once every 6 months shouldn't hurt anything though. Anything more than that is a waste of money probably though.
Originally Posted by kate69
Hello all, I am new to this forum as well as a 1st time vehicle owner. I have purchased my 1st Jeep Liberty Sport 4x4 2002 and must say I just love it.
I have heard of people using gas additives, so my question is: "When is it better to add this gas additive to the gas tank?" almost on empty or on full tank?
Does it really help with the mileage? I must admit what I have read on gas mileage is that it is not that good, around 14-15 mpg city and 18-20 mpg highway, yikes!! Any help on this or other ways to save on gas mileage would help alot. Thanks all
Welcome to the forum.
The proper way to add an additive is when you get to the gas pump put it in the tank just before you put the gas in. Then pump the gas on top of it. Then the gas going in the tank will mix it better than if you put the gas in first and the additive on top of it. Do this before a road trip where you are going a couple hundred miles.
As far as gas mileage goes, you are not doing bad at all. The KJ is not aerodynamic, is higher off the ground than a car, and weighs 4,200 pounds. It's a Jeep and is made to get you wherever you want and back in the worst weather/snow storm as long as you have good tires. Additives won't magicly give you 5 more mpg or something. One good one is "Techron fuel system cleaner" if you really want to use an additive. Read the label. There is a lot of "fuel additive junk" out there.
Just my opinions anyway.
Enjoy your Jeep.