Does the additive stuff that they sell at the store to use every few tanks, does it actually work. And is there any heavy duty cleaner for fuel??? I want to put in something like once a month or so.

What about that product, HEET? I think it also cleans out the system and supposed to prevent gas line freeze......................for half of this board that lives in MN.

They have a fuel injector cleaner fuel additive that you can use every other tank. But like Don said, any heavy duty full fuel system cleaner should only be used about every 4,000 miles.

have you heard of stuff called textron by chevron that stuff works the best i sell a case a month from my shop and it does wonders. about 16 bucks a bottle. i use it regularlly in my bonne and my corolla

The correct name/spelling is Chevron Techron and it comes in various forms I guess becuase I purchase it for a LOT less than $16/bottle. It comes in 12 and 20 oz bottles. Costco has the best price that I have found on four 12 oz. bottles.

HEET is not a cleaner. It is supposed to remove water from the fuel. Pretty much all it is is Isopropyl Alchohol.

I can never remember the name of the cleaner I use, but it'* sold at WalMart, and it'* a pink bottle in a multicolored chromed box. Q-something (Or something like that). Works like a charm, and doesn't cost as much as the fancier high end cleaners

The Techron stuff is supposed to be really good. My friend who is a Saab nut swears by the stuff. I've used in my Bonneville a few times and it seems to work well.

The only cleaner that my mechanic uses and reccomends is Sea Foam. He reccomends using every 5 to 6 tanks to clean fuel system and reccomends changing the fuel filter every 6 months on 3800 powered vehicles.

Sea Foam sounds like a similar product called Marvel Mystery Oil. Some people swear by that product too. Personally, I think if your vehicle has been maintained properly, you shouldn't have to go overboard with extra maintenance(such as adding a fuel cleaner every month or every oil change). But everyone here has different driving habits and/or lives in different environments that may necessitate that extra care. I just worry that you may do more harm than good with some of these fuel additives if you use them too often. Also, IMO, changing the fuel filter every 6 mos is not necessary. Once a year is fine.

I use Techron a few time a year in my cars, it seems to work well.