For every success story for Seafoam, you hear at least 2 negatives. Usually it is a simple CEL, but often it is also the 02 sensor.

Ford specifically says not to put any sort of additive into your engine or gas. Getting out on the highway and opening the motor up will do more good for your engine than any $10 can of instant fix

 

Well there's a guy here I work with that put some in his old jeep and it really helped out with power and performance. He's a good mechanic and no reason to even mention using the stuff if it screwed his ride up. So I have no doubt it works on older vehicles. still use with reservation on anything made in the last decade.

 

Seafoam is great for my TBI 93 S-10 (used again just a couple months ago), but I haven't tried it on my F150.

 

I have used seafoam on my last 4 vehicles without a problem ever. Everyone here says it sucks but It has always made improvements in my vehicles. I use it in the Ford gas tank all the time

 

Hey now that's below the belt I guess I'll let it slide since you feel you must compensate for that wimpy 4.6L by talking big

Anyway I have torn a part an engine or two well into the 100k mile range that have had no seafoam (or other miracle in a can stuff) put through them and guess what they were very clean. What did they have in common.....use good oil changed regularly and use good gas. I'm not saying that there are not exceptions but I don't believe in any fix it in a can stuff. The motors should run pretty clean as long as you put good products in them and run good gas.

 

 

FAIL: That 4.6 has more RWHP than the 5.4 is rated at the flywheel.

 

I have used seafoam on a few a my vehicles with no problems. I wouldn't recomend using it on any vehicle that has low mileage or made within the past 10 years it just doesn't seam to make to much of difference. My friend used it on his 1990 accord and that thing runs much better and is getting alot better gas mileage, so I wouldn't say the stuff is junk because it works great in some vehicles.

 

Nope you FAIL: I belive Thump knows what I was talking about

 

You fail. The 5.4 Makes more horse to the wheels than that silly ls1. Shelby Gt500 enters

 

I guess you're right. at a paltry 440-450 rwhp, the GT500 is somewhat more powerful

 

never had an missue with an o2 sensor after using it once a year in all my vehicles

 

Please read my above post 4.6L. The old F-body isn't even close to being in direct competition with the Shelby. By your logic the new ZR1 makes more power than the shelby Anyway back to the regularly scheduled thread

 

A year ago sea foam was the thing to do and a miracle liquid. Now everybody thinks it's junk.

 

I use BG44k.