Berryman Products 2611 Intake Valve and Combustion Chamber Cleaner, 16-Ounce Aerosol

This product is freakin amazing. Ignore the negative reviews, those are people who have no clue. I ran one can through my 2012 Jeep Liberty V6 that was getting 12-16MPG and had poor pedal response and no acceleration. I had put plugs and wires, air filter because we just bought it for my daughter and it had 118k miles on it. We took compression test and it was fine. Narrowed it down to possible carbon buildup. Well CARBON BUILDUP INDEED! This thing smoked during the entire can during idle and almost none when driving. Immediate increase in acceleration. Fuel mileage restored to 15-19MPG, which for 118k miles is good enough! I felt the car had more to give so today (a week after the first can) I ran a second can through. This time it did not smoke during idle, but on the road test it burped quite a bit of smoke and the check engine lite came on and went off. no big deal. I was right, she did have more to give! I got MORE acceleration the 2nd time! At the time of writing this, I did not have the mileage into it to retest the MPG, but I will this weekend. I suspect 16-20MPG now. FREAKIN AMAZING STUFF for under $40! NO brainer! I also ran a can through my son's 2014 Chevy Sonic 4cyl (68k miles) and it did not smoke at idle. During the road test, It was sputtering badly to the point I had to use manual shift to rev up the RPM's. Check engine lite blinking. I stopped, let the engine recover and pulled out onto the main road. It started to accelerate and then almost died. I lost all power momentarily. Then this Hiroshima cloud came out the tailpipe, HOLY CRAP WAS THAT A MASSIVE DENSE CLOUD! Afte that, it cleared up and once again, we got the same results, much better acceleration and a 2.4MPG increase, it now gets 29MPG city! (prior was 26.6MPG). I ordered 2 more cans to run through my 2012 Silverado with 788K and my wife's 2017 wrangler with 50k. These cans are worth the investment, you immediately get it back and then some in recaptured MPG, let alone the better performance factor.

5 stars for ease of use and the included attachments. This is the way to go unless you have a helper. Took the intake hose off on both ends (from throttle body and airbox) so I could make sure the yellow hook attachment was seated properly and pointed to the center of the throttlebody. Didnt have any pooling issues or leaks. Started up right away and drove around my neighborhood and kept it at the speed limit. Yes it costs more than CRC but then again its set and forget unless your car stalls or something. I got the can going and cleaned my windows. Just easier and faster. Im starting this on a one year old car and planning on using it every year.

2013 Mini Cooper S. Had a P0303. Already put in new plugs and coils. Ran additive in tank, with no change. Thought maybe it was fuel system, an might need to swap injectors. Bit more research and saw these cars are horrible with carbon build. Decided to give it a try. Throttle body is under intake on backside of engine, so had to inject the stuff a little further upstream. Didn't change idle at all, and no smoke while can was connected. But after sitting ~20 minutes, car smoked bad. Drove it until it cleared. Then drove it hard to try to get misfire again, nothing. Drove more to get it to try, nothing. Accelerated smoother, and so far so good. Haven't driven enough to see if mpg has changed.

2016 Mazda CX5 with SKYACTIV GDI engine and 56k miles. Thought it was time to clean the intake valves as a preventive measure. I bought this kit because I liked the thought that went into it with adapters and flow control devices to make the job easier and they did. I used the silver flow control device for my 4 cylinder engine then assembled tubing and yellow straw as directed. Then I loosened the air intake tube just upstream of the throttle body, inserted the curved yellow straw as directed, reassembled the air intake tube, idled the engine, locked the can button and started injecting the solvent until it ran out. Then it was a simple matter to remove the straw and button everything back up. I noted that with the silver flow control I did not choke the engine so it idled smoothly during the process. The car started right up but I made the mistake of not taking it easy to burn off any excess fluid and I stepped on it to test. Big mistake. The car stumbled, threw a code and went into 10 mph limp mode. Got home, erased the code and all was well. Lesson learned. In the end, the process was so easy that I won't hesitate to do it at every oil change.

I used this product on my 2012 Porsche Cayenne, 3.6L V6 naturally aspirated engine. It is extremely easy to use, following the instructions. My car has over 50,000 miles on it and this is the first time the direct injection engine has had any intake valve cleaning. Again, following the instructions exactly, my car threw the check engine light (CEL) during the installation and later during the 10 min ride (after the 30 min waiting period after installation). Fortunately, I have a code scanner and was able to erase all the DTCs. After this was done, the engine was noticeably different - much better throttle response, faster acceleration, smoother idle and overall operation. It has always started easily and quickly, so no improvement there. For the price, it was a great treatment that actually provided an improvement. I wish I had a bore scope as I would have done a before and after video to confirm it cleaned the valve seats and possibly the valves themselves. I waited about a month and bought a second can as I wanted to make sure I got all the valves and cleaned them as much as possible. This is an effective product and is possibly 10x cheaper than having a shop media blast your intake. For the price, its worth a try - an auto parts store can probably clear any CEL or codes you got from installation. FYI - the codes are from the engine "missing" while it ingests this product. Codes could clear on their own after driving for the 30 min they recommend.

Worked good. Slow release. Good attachments . White smoke came out so I guess it worked. Running smooth.

Facile d'utilisation et semble avoir un effet positif. Par contre, je n'ai pu le valider car je n'ai pas de caméra pour vérifier le résultat avant/après. J'aime le fait de pouvoir l'utiliser seul, et je recommande de faire une vidange d'huile après ce traitement pour éviter de contaminer les composantes avec le carbone qui se dissout dans l'huile et les gaz d'échappement.

Facile d’utilisation