Fuel Additives... Or Whatever They Are...

[MaddSkillz]

My truck has reached the 30k mark and I was wondering if there's anything I should put in the tank to clean the fuel system out? Or is that stuff just a bunch of hype?

My MPG is pretty good, actually. But not sure if that means anything or not.

 

[Zombie]

I would not worry about it and if I were to use one I would use something like seafoam or another petroleum based.

 

[mhphoto]

I've never used a dedicated fuel cleaner, but I do throw a can of Seafoam in the gas tank a few times a year, especially before and after he cold months. I'll put it through the brake booster vacuum hose about once a year to throw all the carbon out.

 

[Old Fart]

Just for clarity you're driving a gasser correct?
Not a diesel.

 

[Blinocac200sx]

I like to grab a can of seafoam and start my car and remove a vacuum hose from the TB, and stick it down into the can (slowly and carefully to not kill the running engine). That will clean the carbon out of the induction system.

 

[MaddSkillz]

Just for clarity you're driving a gasser correct?
Not a diesel.

Right, it's not a diesel.

So this Seafoam stuff seems pretty popular. I'll check that out! Thanks!!!

 

[Istandalone]

Seafoam for the top end through vacuum. Lucas in the tank. FTW

 

[Zombie]

several ways to do seafoam - vacuum lines, gas tank, crank case - safe for all and will clean....

 

[Cacinok]

i use seafoam on my excursion and tractor. seems to work well.

maddskillz, as long as you're using a quality gasoline, you should be alright. many of the better brands of gas will add fuel additives already. that being said, it never hurts to get some extra cleaning/treatment.

 

[Wizard]

We got a 98 jeep cherokee for my g/f when she moved down here for a good deal that had been used and slightly abused. Doesnt like to start on the first crank and even tho its a 4.0L it was only getting like 14 mpg on the highway!

We have since ran a few bottles of lucus and gumout fuel system cleaner through it every time we fill it up from empty and run it to empty with the cleaner in it.

Its now getting 23-24mpg on the highway and 19-20 around town so it must do something haha.

But I also put cleaner stuff in my desiel and have always used the fuel system cleaners from STP and Gumout in my gassers and they have all lasted way longer than other cars my firends have owned.

ETA: this jeep had 159k miles on it when we bought it last month and now has over 161K