Gumout 510011 Multi-System Tune-Up, 16 oz.

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.

Good

I prefer everyone brand " gumout " product which is effective and really works to remove tuff carbon built up and deposits from my jeep grand cherokee wj 4.7 v8 yalla but it

It did almost nothing to enhance engine performance. Only it enhanced a little the end of tank fuel consumption for short period

انصح فيه ولكن سعره مرتفع بعض الشي

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.

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。

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!

I have nothing bad to say about the product itself. Worked as advertised. I gave it a 1 star due to the price of $31.48 and this includes a supposed price drop of 11%. I later found it at the local Walmart and Canadian Tire for $13.48. Again, I wish I would have done some research first.