One of the few with a high concentration of PEA that is proven to clean your fuel system

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It may work. I couldn’t tell the difference

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It fixed my check engine light

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I stared using this about 3 years ago, since then the engine has quited down and runnings smoothly. I also believe my MPG have increased as well.

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Works well on keeping the engine fit and running well

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Smooth and satisfying. Make it run like running higher octane in an older car. Like that specially PEC or whatever it’s called. Makes me think it’s the real deal and the car reacts like it is

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I have a 2003 Mazda B2300 with 184K miles on it. It had started running a little rough when pulling away from stop signs and red lights. I started using this Gumout Regane with every fill-up and the roughness is now gone.

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I like it because it a complete fuel system cleaner , thinks it works better half a tank or lower

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This is a very good product. I used it and felt the difference right away. 100%.

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Product is great, definite improvement in power delivery and mileage noticed after use. Shipping was the issue, one cap cover came lose during shipping and a bottle leaked 2oz out, the entire shipping packaging was soaked through in gasoline smelling liquid, somehow went unnoticed and was still delivered. Used the full bottle, but still have the second bottle we ordered that's a quarter less full from the leak. Definitely need to be checking that stuff or change shipping policies for liquids like that, and not be leaving an obviously leaked package.

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Our car has almost 300K and the idle quality began to deteriorate. Hard to describe but obvious. Because of no codes and near new plugs, coils, injectors, and IAS it was decided to try this cleaner. Almost immediately the symptoms vanished. At the next fill up I did not add Regane and the symptoms were right back. I reasoned that almost 300K of deposits are not likely to clear out in one treatment and treated that tankful and the symptoms vanished just as before. So I reasoned this stuff has an additive, perhaps an octane booster. Whatever it is it works to make our idle excellent. I used this stuff for 9 consecutive tank fulls and stopped using it to see what would happen. Excellent idle for just over 900 miles and the symptoms came back slightly. I put in a bottle and right back to excellent. I plan to repeat this exercise for as long as it takes. It is a 3000 mile interval product and this car has had almost 100 of those.

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Seems to have cured bad fuel or sediment blocking fuel pump. All regional Sunoco station/mini marts have "new owners". Is "bad electricity" a thing? Asking for "a friend" who noticed.

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This is all I use for my 2002 Camry with 200k miles. 1 bottle every 3k miles

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I usually always use this and it gets the job done it's great for the price and outperforms more expensive products in my opinion

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Works well

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Economical pricing Can’t tell or was not Abel to tell different in gas usage/economy

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I can't see the inside of me injectors, they are prolly fine.

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amazing product

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worked great for helping a mower with over one year-old gas eventually start and clear out the hesitation. i only used a little every time i filled the tank since it is smaller than a car tank. it still took a few attempts to start and it stalled once or twice when i went to drop the mower deck but after a few cycles through this and premium gas helped save me when i was working through its other issues after sitting so long.

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Bottle

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Best fuel system cleaner on the market for me and my cars.

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my car.

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Used a separate full bottle in two different vehicles at same time and the idling, accelerating and general engine improvement was noticeably improved within half a tank of use. By the end of the full tank both vehicles improved to smooth enhanced performance. The PEA % in this product was the right amount for these specific performance issues.

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great item for my car overall

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Used this on my motorcycle. It was idling rough and hesitant during acceleration. Noticible difference after one tank treatment. Problem resolved completely after 3 tank fulls.

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I used 2 bottles, 1 at each fillup, for 1st time cleaning. I plan on using 1 every 5,000 miles when I do oil changes to keep the injectors clean and remove more carbon buildup.

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One of the best fuel systems cleaner

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Complete fuel cleaner with PEA, the strongest chemical on the market.

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Good insurance

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Good to clean gas tank

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it has a subtle effect of cleaning the fuel injectors and it increased my gas mileage by a mile or 2 per gal for a couple maybe 3 tanks. note i didnt drain the tanks below 1/4 of a tank each time i filled it back up.

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Smooth

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Good product and good price. Not pleased with shipping at all.

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Added this to my fuel and drove about kicking out debris - vehicle has 252,560 miles.

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Had trouble starting snowblower, this got it going fine.

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It's a proven effective fuel system cleaner from all of the info I've gathered, to avoid the snake oil products on the market to those that simply do not live up to the hype, some which have been for a long time, but marketed very well. But this is a solid choice among those automotive cleaners that do as they are advertised to do and do it quite well. Always look into such things on your own. Fuel additives are one thing, but be esp. careful with using any oil additives.

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Works well. I use it once a month.

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I'm using it as recommended. There's noticeable improvement on the engine noise and steering of my 2012 Scion XD. It also hasn't failed emission test so far.

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Smooth drive after putting treatment in tank

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great product car clean emissions

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This item really works on cleaning my car's fuel system and improving my miles per gallon

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Iput one of these in my tank every 7,000 miles or so. I drive a fair bit on the highway setting the cruise control at 65 and I get almost 40 mpg. I would like to think this has something to do with it. I've never had any problems with engines, just maintain them and they will treat you right.

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Smells when dumping into fuel tank filler. Immediately, start too put in at least 13 gallon fuel. I seen a significant increase of performance and mpg.

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I use Gumout Regane in two cars religiously. One for a car with a gas direct injected engine (G.D.I.) and one in a port fuel injection. It's not even for any fuel economy gains, even though that may be the case. It's best for engine protection. The results can be felt with smoother idle, faster take offs, more power and better fuel economy. Do yourself a favor and buy it already.

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I use this stuff a few times a year. Seems to keep everything working. I gave it 4 stars because nothing is perfect.

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I switch between seaFoam and fuel system cleaner.

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Just poured into the empty tank, fill it out with gas and enjoy

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I bought this since it is an affordable thing to try before resorting to replacing more expensive parts. It seems to have helped my car run smoother, helping me cross some things off my "to fix" list

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I would buy this again, it does what it says it does.

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Small enough to fit in any pocket, but please pay for it before you do

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