Royal Purple11722-2PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. Bottle, (Pack of 2)

Best products for any vehicle youll tell a difference almost instantly I use it a lot it just a little cheaper online but I use all their products on my vehicles and the oil is great too

Helps keep engine running smoothly

Great product

Good price

THIS IS A MUST IF YOU HAVE A LOT OF MILES ESPECIALLY IN CA.

Used this in all of my vehicles will buy more and probably add it to my maintenance program

My 2006 Pontiac G6 with 180000 was not idling very well and started poorly. I added this product along with replacing my sparkplugs (which only had 30000 on them) and it did not take long for me to notice that the poor idling and poor starting issues went away. I went from 25.8 mpg to 27.3 mpg and get this, most of my driving is of the short trip into town variety. I mean WOW what a difference. I'll take it and highly recommend using this product.

I have a 2002 Ford F250 with a 7.3L diesel. Truck has 140,000 miles on it. I noticed that my mileage was starting to get worse and I had a tapping sound coming from an injector. A friend of mine suggested this product.I added two bottles to a full tank of fuel and ran it. Like night and day difference.Smoother throttle response, more power, better driveability, and the injector tapping sound is gone. I can't believe how well this worked. Am sure my mileage is up as the truck is driving so much better.Went ahead and put this product on subscribe and save and will use this as regular maintenance on both my 7.3 and my 6.7.Worth every penny.