Seafoam Engine Treatment
Thread Starter
Racer
Joined: Nov 2002
Posts: 324
Likes: 0
From: Norfolk VA
Seafoam Engine Treatment
Went to O'Rielly Autoparts last night to buy some Techron like I do every month. The guy behind the counter was pushing Seafoam Engine Treatment over Techron. I bought the Techron but was wondering if anybody has used Seafoam Engine Treatment and what they thought of it?
Pro
Joined: Nov 2012
Posts: 541
Likes: 0
From: Raleigh North Carolina
Used it in an F-Body in the gas tank, brake booster, maybe the oil pan(?). Didn't hurt it and no codes. Big plumes of smoke coming out after I used it in the brake booster though, but it's normal.
Le Mans Master
Joined: Aug 2009
Posts: 5,197
Likes: 190
From: ALL governments are legalized mobsters, so doesn't matter where I live :(
Mixed reviews about seafoam. You can youtube it as well to see some results. Some say it is snake oil, and some other like it.
Melting Slicks
Joined: Jun 2010
Posts: 2,809
Likes: 3
From: Yorktown Virginia
Ive heard good things about it cleaning up carbon deposits in your cylinders but other than that I havent heard much else. I know when I used it in my camaro I had black water coming out of my exhaust so it must have done something.
Administrator
Joined: Mar 2001
Posts: 368,384
Likes: 24,790
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
I've always stuck with Techron. Works well so no reason to try something else. But there have been owners here that have used Seafoam and seem to like it too.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
naphtha, light oil, and alcohol.
the light oil is what causes the plume of smoke, the naptha is what dissolves the carbon but it is kinda weak. I soaked a carbon crusted valve in seafoam for a week and still needed to scrape the carbon off. The alcohol is to take care of any water in the fuel. While techron still has naphtha in it, there is also Toluene present as well plus a few other solvents.
the light oil is what causes the plume of smoke, the naptha is what dissolves the carbon but it is kinda weak. I soaked a carbon crusted valve in seafoam for a week and still needed to scrape the carbon off. The alcohol is to take care of any water in the fuel. While techron still has naphtha in it, there is also Toluene present as well plus a few other solvents.
Melting Slicks
Joined: Jun 2010
Posts: 2,809
Likes: 3
From: Yorktown Virginia
naphtha, light oil, and alcohol.
the light oil is what causes the plume of smoke, the naptha is what dissolves the carbon but it is kinda weak. I soaked a carbon crusted valve in seafoam for a week and still needed to scrape the carbon off. The alcohol is to take care of any water in the fuel. While techron still has naphtha in it, there is also Toluene present as well plus a few other solvents.
the light oil is what causes the plume of smoke, the naptha is what dissolves the carbon but it is kinda weak. I soaked a carbon crusted valve in seafoam for a week and still needed to scrape the carbon off. The alcohol is to take care of any water in the fuel. While techron still has naphtha in it, there is also Toluene present as well plus a few other solvents.
