Hey guys I'm wondering what would be better. I am looking for a good fuel system cleaner and everyone seems to like "Seafoam". What's your experience using it? Will I have to change the oil after I use it? Or should I just go to my mechanic and have him do a complete fuel system cleaning? My truck has 120k miles and is running fine just want to keep up on the maintenance. Thanks forum!

 

Seafoam is nice but it is suggested that you change the oil about 50-100 miles after using is (especially on high mileage engines), and you should change the spark plugs as soon as you run the system out of seafoam completely.

Here is the correct way to use seafoam:

http://www.nicoclub.com/archives/how...right-way.html

That is the proper way to do a complete seafoam of the engine....

 

Good article been alot of different methods discussed, never sure whos right.

 

When in doubt follow the manufacturer's instructions... they developed, marketed, and sold that product... and they've usually invested considerable R&D into their product, so that's usually the best advice.

 

Great article Izero. I have not used it in the crank case. I prefer MMO instead.

 

I've used SeaFoam many times, mostly just in the gas tank, but a few times in the intake. In those two applications, it isn't necessary to change the oil afterwards. I've used it in the crankcase a time or two, but I did that before a scheduled oil change. The first two times I used in the intake were on very high-mileage vehicles and the smoke show was impressive. The throttle response and idle were definitely improved.

 

Yes, Seafoam is a great product if used correctly. Ditto on the smoke show.

 

I am on the fence about it, I think it is absolutely AWESOME for older vehicles with Carburetors, but I am weary of putting the stuff through newer EFI motors, as there are just way too many sensors to worry about, also the oil channels are much smaller than many old motors

I've seen seafoam destroy O2 sensors and clog up oil lines with the gunk they remove from the engine's internals on new motors, but it's rare that that happens, and if you contact the Manufacturer and tell them what happened they will usually try to help you out.

 

i didthe seafoam thing when my truck had about 58k on it when i first bought it. just wanted to try it out and see how it worked and if it made any difference. it didnt smoke too much, which to me was a good sign, and it seemed to run a little better but just about the same. it couldnt hurt in my opinion, so many people have done it with great results

 

Ive used seafoam in the gas tanks of my motorcycles. Never had an issue. They were both carbs so i used to to clean out the system.