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I've used Seafoam for years, in my cars and in my bikes. The very first time I used it was in a Toyota Supra Turbo at about 90,000 miles. After about 50 miles are so, the car started running badly, hesitations, stalls and misfires. I had a friend behind me and I figured out I would try and blow it out and started running through the gears. He told me that the crap that came out of my tailpipe was unreal, smoke and black gunk. By the time I got to the top of third, it was running unbelievably well and I was sold. I try and run some in my tanks every 5000 miles or so, I'm a believer.
Last edited by caddman11; Jun 25, 2016 at 10:23 AM.
Yep, same as Jack. I run top tier 93 octane gas only and a bottle of Techron about every 6 months - no problem.
Even when I had to store it for the winter I didn't do anything special to it. Cleaned it, changed the oil, filled it with gas, put +5PSI in the tires, hooked it up to a Battery Tender Plus, blocked the tail pipes, covered it and woke it up in the Spring. Thankfully, I now live where the car is a 12 month car.
Not entirely the same by any means, but I do run seafoam through my commercial mower which is fuel injected. Also all of my small engine stuff actually. I've had great experience with it in those situations, but have never tried it in my vette.
I will say their transmission stuff is also great. Ran a bottle through my 05 silverado with 170k miles on it-Had some erratic shifting going on. Drove it for 200 miles or so with their cleaner in the transmission, changed fluid/filter and it went away. Now have right at 185k and it keeps chugging along. This truck also pulls a trailer loaded with mowers 2-3 days each week.
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
it works good to clean out the combustion chambers, especially on cars that are babied and never opened up... carbon will build up over time and a can of seafoam injected through the intake will help burn this off and can make the car run smoother... you can run a can in a full tank of gas and it can help unclog injectors and whatnot but if your car is in good shape and you always use a top tier fuel then you may not notice much of a difference if any at all in that situation
it works good to clean out the combustion chambers, especially on cars that are babied and never opened up... carbon will build up over time and a can of seafoam injected through the intake will help burn this off and can make the car run smoother... you can run a can in a full tank of gas and it can help unclog injectors and whatnot but if your car is in good shape and you always use a top tier fuel then you may not notice much of a difference if any at all in that situation
Any remote, tiny, chance of hydrolock?
Last edited by 73Corvette; Jun 25, 2016 at 03:46 PM.
Help! HYDROLOCK from Seafoam Cleaner, what now?
UPDATE: Tried again with my fingers crossed, and it turned over. Was a pain to start, but made a great smokeshow. Hopefully, this didn't do any damage. I'll have to run a compression check later.
I went throught the first steps, poured 1/3 can into a cup, and slowly sucked it into vacuum booster line, I then shoved the hose all the way in the can, but it didn't stall, so I just shut it down.
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
Originally Posted by 73Corvette
Any remote, tiny, chance of hydrolock?
if you try to inject the whole can at one time it's possible, sure... you have to do it in small amounts at a time, at least that's how I've done it in the past and never had an issue... I have done it to all of the cars I've bought and it has always produced noticeable positive results for me... I don't do it on the vette anymore because I'm using methanol as a secondary fuel and it does a pretty good job on it's own of keeping things clean... straight water also works really good to clean the combustion chambers... however I would not recommend someone trying any of the above unless they have experience doing it or they are mechanically inclined and gather all the info/tools needed to do it properly or you could mess some stuff up
If you are careless and dump the whole can then possibly.
I've used Seafoam on almost all of my cars. I use it in my Vette at the end of the year as a fuel stabilizer and one time I ran it through the PCV valve to clean out the top end. Does it work? I cannot say for certain. Does sucking it through the top end produce any results? I don't know. But if a ton of white smoke means it's cleaning the top end then, yes.
I think in the right circumstances it probably works well. I'm not sure how much benefit you'll have from a well maintained car. If it were a neglected car it may work wonders. I really only use it anymore as a fuel stabilizer. I figure it'll stabilize the fuel and possibly help clean the fuel injectors too.