Yamalube ACC-RNGFR-PL-32 Ring Free PLUS 32 oz. Bottle (EACH)

It was what it supposed to be

I used this in three different four stroke daily drivers. One of them was a Chevy Trax with a 1.4 liter Turbo engine with 87k miles. This belongs to a friend of mine who told me her engine was running rough to the point it was rattling. It was also a slight oil burner, so that added to the gunk in the combustion chamber. I put 4 ounces in this tank at 3/4 full.At first, she (the owner) texted me and said it was running even rougher, and that it would bog down when she would stop at an intersection. Turns out this was only because there was so much crud in her injectors that breaking it all loose at once with such a powerful solvent was causing one or more of the injectors to spray ineffectively at lower pressure. She made it to work that morning, started it up again, and it ran rough for a couple blocks. After that, it cleared right up and ran LIKE NEW.I know I used more than recommended, so, if I were to run it through really dirty injectors again, I would probably run only two ounces in a less than 20 gallon tank. But, it showed it works quickly!I also used it in my daughter's Ford Fusion and she raved about how much better her MPGs are now.

I've purchased from PWC a few times, once I had a question and their prompt reply and prompt action was very impressive. PWC has wonderful customer support and very prompt to complete their tasks. Very pleased with them.

Man they were not kidding calling this stuff ring free. I had a cylinder with low compression, I used this stuff and and the compression came back to within spec. Also I scoped the inside of the cylinder with a camera before and after, what a huge difference in carbon on the pistons, like brand new now.

If anyone is looking for a TRUE fuel system cleaner,this is the best.i have found)BY 44K is on pat as well but it has no ethanol treatment,which in a car doesn't matter).Since no one is going to tear down a motor before use and after to really see if it worked I used 5 Badley varnished carburetor float bowls and put•Yamaha Ring free•sea foam•BG44k•STP fuel cleaner•Lucas fuel system cleanerleft overnight (6pm to 7am)And The 44k and Ring free cleaned 70%/softened 100% of deposits.I didn't use Techron because Yamaha Ring free is just pure HIGHLY concentrated Techron (which from what I understand from Yamaha school was developed for Yamaha outboard motors, then marketed to automobiles).sea foam,stp,and Lucas didn't do much.10% clean/20% softened deposits.lucas was 3rd best but still not close to those 2.These tests also don't take into account hard carbon deposots.im sure they are more difficult to clean.I have been a certified Mercuey and Yamaha outboard tech for 18 years(including going to factory school 1 week a year for both manufactures.(......Every year !!!!!!! since 2002).And during winter we get a little bored so I do all types of tests,making specialty tools,ect.Anyway just wanted to give some actual,real,first hand exsperience.Hope this helps anyone trying to decide on what TRULY cleans fuel deposits.wish I would have taken pics.differece in the cleaners was dramatic.-◇☆◇