Gumout Multi-System Tune Up | Pack of 1 | 473 ML | Advanced Engine Treatment for Cars to Lawn Mowers | Premium P.E.A Ingredients for Max Performance | Fuel Economy & Engine Life Enhancer

I think among all the additives I have used this one stands out. It restored my car performance and could definitely feel a positive change. Highly recommended.

I have Maruti Suzuki Swift Zxi 2006 ( 1st Gen), Recently, after 18 years of service, the engine started to misfire. Initially I thought this is due to worn spark plugs, so I installed new ones, all of them. But the engine continued to misfire. Checked ignition coil, battery is new, everything was fine. Removed fuel injectors to visually check it, they seemed ok. Cleaned Throttle body, EGR manually etc. Still problem persists . FYI I service car my self, you know basics, oil filter, air filter, cabin filter, plugs, bulbs and so on, not the major parts such as Suspensions etc. I knew this car’s engine is old now, problems will arise. But I don’t want to lose hope, so I did some research and found this product, I read the instructions, followed them. Filled Gumout Multi while fuel gauge was blinking then topped the tank full. Went for a drive for 240 kms. As I was returning, I stopped for natures call and kept the engine running to hear if there are any missing sound coming from the exhaust. The exhaust sounded like it’s in the rhythm. Pick up also increased, I will do this for three times as the engine is old, I will update in the future for pros and cons. Go for it, for old engines use at least 2 circles.

Gumout fuel system cleaner helps in restoring the lost engine power. Excellent cleaning agent. I was able to feel the difference in just 5 kms. It has made my car very smooth. I do advice people to buy this product as it does not harm to the car. I purchased this from SHOPPERS ISLAND INDIA Seller. Genuine seller. Highly recommended *****

Bought Gumout for my 2007 Maruti Suzuki WagonR, and it's impressive! After using it, the engine feels smoother, and mileage has noticeably improved. Easy to use and worth every penny. Highly recommended for maintaining fuel system health. Will definitely buy again. Great product for keeping my beloved WagonR running strong!

オイル交換のみで乗りっぱなしなサクシード(97,000km)に添加してみました。 うろ覚えですが・・・オイルに対しての算出の結果、おおよそ112cc をエンジンオイルに、残りをガソリンに添加しました。 ・・・何となくですが、落ち込んだトルク感が排気量並みに戻って、アイドリングが静かになった気がします。 添加剤によってエンジン性能の100%を超えることはまずないと思われるので、エンジンの中をちょっと掃除したいなあという人にはお勧めできるかも。

As good as it says

Purchase twice for my 2013 Lancer Fortis, I can say that the product is so effective that you can immediately feel the difference after awhile.

I had heard about this stuff from the Scotty Kilmer channel and Engineering Explained on YouTube. I have recently been on a spirit quest to do excellent preventative maintenance on my 2007 Nissan Altima 2.5 S now that I am using it for Uber and Lyft; driving about 1000 miles more a month than I used to. I read recently about the Top Tier rating system for fuel products and I realized with a sink in my stomach that for the past 37000 miles, I have been filling up at the Pilot gas station that is five minutes away from my house and it is a non-Top Tier station. My car had had no problems with the engine or fuel system and still hasn't (knock on wood), but regardless I wanted to do something to try to correct 37000 miles of the gasoline sin of using non-Top Tier gas that lacks the amount and quality of detergents that your Top Tier stations like Shell and Chevron have. I drove my car to nearly empty and pulled into the Shell gas station nearest me. Given that I have a twenty gallon capacity tank, I dumped the entire bottle of the Gumout into my fuel tank and added a fill of gasoline–17.86 gallons–on top of it to mix it in as the instructions said to do. I then drove my car to nearly empty with the Gumout/Gas mixture and just did my second fill up with only a Top Tier gasoline. Because my car had no problems like rough idle, slow acceleration, or what have you to begin with, I cannot say I have "noticed" any difference; but that doesn't mean there wasn't. For seven bucks and being approved by many reputable mechanics, I don't think my money was wasted and now that I am using Top Tier gasoline only I feel better about the longevity and reduced need for repairs my car is hopefully going to have. In summary: My car didn't have anything noticeably wrong that would allow me to observe a noteworthy improvement, but it didn't hurt my car either as far as I can tell; and it has the right cleaners and such for modern fuel injected vehicles. With that uninspiring part of my review over, I can now get on to the really cool NOTICEABLE benefit this stuff had: it was the Dr. Frankenstein to my mower that had been sitting unused too long! I went out to the ranch I manage to do some mowing and to my disappointment, the mower was dead and would not even start. I replaced the battery and was able to get it to start, but the idle was extremely rough and within a minute it spluttered and died. Noticing that the tank was maybe only 10% full, I went and got five gallons of fuel and added about 5 ounces of Gumout as per the instructions for four stroke small motor gasoline. I filled the mower up, shook the mower and let it sit for a minute, went to start it up, and COUGH PUTT COUGH PUTT COOUGHH VROOOOOOOOOOOOMMMMM!!!!! That baby coughed whatever gunky fuel and deposits had clogged up the fuel line or something and fired up! It ran smoothly from startup to intentional shutdown and I knew that I had the Gumout to thank for that. A further benefit of the Gumout too is that it is apparently a fuel stabilizer, so the other 2.5 gallons that is going to sit untouched in the can for up to four months is going to be good to go! All in all, I am pleased with the stuff. Be an educated purchaser: do your research and make sure it is going to be correct and useful for your application, but sometimes it is just fun to use "snake oil" type items like this and just see what happens (when they have been approved for safety by the appropriate agencies when used according to instructions, of course). Thanks for reading my review, I hope it helps you to make your purchasing decision!

Excellent product and fast shipping i put half in the tank and half in the crank case. Will see what's ginna happen.