Performance Formula One Shot 8oz, Case of 24 Bottles Treats 30 gallons Diesel Fuel per Bottle

Flatbed truck seems to run better and has more power. Not sure about mpg but I'm guessing 1+ mpg improvement. I use it every other tank.

The return on investment is well worth it. Use a bottle with every fill and can see the difference vs. when not using it.

I run a bottle in every fill up. Better gas mileage and protects your engine and fuel system!!! The Cummins loves it.

We use this product all year long for added performance for our vehicles

Let me start by saying I thought products like this that claim performance and MPG improvements were snake oil. I recently got a bad batch of diesel from my local gas station, and bought this to run through my Cummins 6.7L Engine in a 2014 RAM 2500 as a precaution. I was not expecting any MPG or performance gains at all. The only reason I chose this brand was that it came with 24 bottles and was priced reasonably. I was very surprised (as I said I'm a former skeptic) when my MPG went up from 16.3 to 17.6 MPG, doing exactly the same daily 100 mile return trip each day, 6 days a week (mileage based on dash 'average MPG' display before and after). I cant comment on performance as I don't have access to a dyno. It feels like the truck has a little more pep, it also appears to run a little smoother than before - I have nothing to base these latter claims on other than my perception. The MPG is better, and I noticed a difference after the second fill up of 30 gallons with a bottle of this added with each fill up. Amazing. I'm convinced now, and will be using this at all fill-ups. I'm also going to start using it in my skid steer loader and hobby farm tractor.

Perfect size for my trucks fuel capacity. No more measuring

This was exactly what I was looking for. Just use one bottle per fill up and you don't have to mess with refilling or measuring. I did received the wrong product at first, but I contacted the seller and he or she was quick to respond. They shipped out the correct product immediately and the rest is history. I WILL be buying this product again.Update: As of 2/21/2016 my 2015 Ram 2500 Cummins diesel has 10k miles on it. I have been using this product since the truck was brand new. I just drained both the front and rear fuel filters for the first time since buying the truck and 10k miles later there was absolutely no signs of water in the fuel. I can't 100% attribute that to the Stanadyne alone, but I am pretty sure it is helping. I try and fill up at the same fuel station all the time as well to keep some consistency with the fuel I put in my truck.On another note, my buddy and I bought the same trucks weeks apart. He does not like to use additives he said and is averaging about 14.3 mpg. I on the other hand am averaging 17 city and 20 highway mpg with bigger and wider BFG all terrain tires on my truck. I will be buying another case of this stuff really soon!!!Update (10/24/18): Ordered another case and it arrived at my door in less than 24 hours... 👍👍

Add a bottle to every tank of fuel! Increases fuel mileage, and keeps everything clean!!