sea foam in fuel system ?

[rangertom]

I'm not sure where to post this and I can't find anything through searching the forum so here goes... my 84 cutlass with the Buick V6 has been starting a lil rough and running a lil worse than it should, a friend told me to put a can of sea foam in the gas tank and run it through the fuel system to clean the carb, My question is this... is this safe or doable or will it cause more damage than I want ? I've heard of putting it in the oil but not the fuel? any insight would be appreciated ..

 

[Blueboy84]

Yep, it's fine to put in the fuel tank with a fill up... the back of the can should tell you how much. You can also put it into your oil crankcase or into your intake system to clean out carbon deposits.

Do a youtube search on seafoaming... if you do wind up sucking a 1/3 can into your vacuum system (through the brake booster hose is probably the easiest), I would suggest driving it 50 miles or so, then changing the oil. You don't want too much of that stuff remaining in your system.

 

[-83MONTESS-]

I have tried it in the fuel tank, oil, and through a vacuum line. I can tell you that the vacuum line worked the best, I have 2 huge black marks on my garage wall to prove it :lol: Some people(mostly old men) will say it wont work and that it is impossible but I noticed a difference in throttle response---thats about it but for $10 a can it's worth it.

 

[oldmansmonte]

Yep, it's fine to put in the fuel tank with a fill up... the back of the can should tell you how much. You can also put it into your oil crankcase or into your intake system to clean out carbon deposits.

Do a youtube search on seafoaming... if you do wind up sucking a 1/3 can into your vacuum system (through the brake booster hose is probably the easiest), I would suggest driving it 50 miles or so, then changing the oil. You don't want too much of that stuff remaining in your system.

Don't you have to change the plugs too?

 

[Fox80]

Yep, it's fine to put in the fuel tank with a fill up... the back of the can should tell you how much. You can also put it into your oil crankcase or into your intake system to clean out carbon deposits.

Do a youtube search on seafoaming... if you do wind up sucking a 1/3 can into your vacuum system (through the brake booster hose is probably the easiest), I would suggest driving it 50 miles or so, then changing the oil. You don't want too much of that stuff remaining in your system.

Don't you have to change the plugs too?

Whenever I have used it with the vacuum line method I always changed the plugs, I always put it in the gas tank, in the oil, drove it for a few days (highway speed is best) then ran it through the vacuum line, then changed the oil after driving it for a day or two, as well as the plugs. I agree with the above post the stuff does clean well, not to say for sure that is the problem with your car but it can't hurt.

 

[86 Grand prix]

I've seen it do amazing things to small engines that have set up and will not run right.

 

[silverfox]

I run a can of it in my gas tank about one a month or so, but i also drive my car almost daily so about every 1,000 miles or so. I have noticed it helped, the car runs a little better and throttle response is better.

 

[Blueboy84]

Agree that it's not a bad idea to change the plugs, but I've done it without and have been fine.

 

[Poncho61]

I've used it on most all of my vehicles. The newer ones with OBD systems, if done through the vac lines it usually sets a temporary code, but its easily reset with my scan tool. I've never changed the plugs and have not had any problems with them afterwards.

 

[Poncho61]

I just bought a can of the Sea Foam Deep Creep to try out on an engine thats been sitting a long while and is locked up. Haven't used it yet, but when I do, I post up the results.