Bruno Loves SeaFoam

I’ve been researching online a lot regarding how I can improve engine performance and gas mileage on Bruno, my 1999 Ford Explorer Sport (2WD, 5spd, 4.0L, OHV, V6, 101k miles).

I knew about putting SeaFoam in your fuel tank and with your oil in the crankcase, but I had never heard of sucking it into your engine. I looked all over and everybody was saying how easy it was and that it noticeably improved their engine. Usually resulting in smoother idle and better acceleration. So I decided to give it a go today. I got a can of SeaFoam and small funnel. I disconnected my brake booster vacuum line which goes straight to my combustion chamber–which is right where I want the SeaFoam to go. I had another person sit in the car and use the gas pedal to keep the vehicle from stalling out. I had him keep it around 1,000 RPM’s while I poured in the SeaFoam. As soon as I emptied the entire can into the engine, I had him shut the engine off. Even before the engine was turned off, there was smoke pouring out the tailpipe–it was awesome.

Per the instructions I had read online, I let the SeaFoam sit in the engine for 30 minutes which let it soak and loosen up the carbon buildup I was trying to remove. After a half hour, Bruno started right up. I could immediately notice his idle was smoother than before (not a humongous difference, but it was noticeable). I let him idle for about 5 minutes (smoking away) before taking him for a drive. I blew smoke all over the streets as I drove–it was pretty awesome. I then came back to the church and let Bruno sit there and run in the parking lot for another 15 minutes until he was done smoking. Total run time was about 25-30 minutes. From what I’ve read, the more smoke you get, the dirtier the engine you had to start with. Apparently, Bruno had a really dirty engine.

Below is a video from YouTube of somebody recording their Explorer after putting SeaFoam into it. It’s a good example of what Bruno was doing.