Customer Ratings & Reviews

There was a noticeable performance improvement in my old Honda CRV after using this additive. Plan to continue using it.

Cars run better than ever now. Fuel consumption has decreased as expected.

Excellent

It gave my vehicles a little better fuel mileage. I believe that it is a great product. I use this after every oil change. I keep my throttle bodies clean and I also put a few ounces of Marvel Mystery Oil in my fuel tank every other fill up. The combination of these 3 I believe will keep my cars in good shape for many years.

Always a good idea to treat your fuel system as often as possible, todays fuel is dirty . Great product!!

Superior quality and outstanding performance does exactly what it’s supposed to.

Great way to maintain the fuel system

Put this in my 2011 Honda Odyssey, engine runs smoother and quieter.

Car has 100k and runs smooth. Making sure the fuel system is clean and operating is important.

I use this item religiously and put it in my cousins vehicles and wires .

So you want your injectors cleaned? This product is worth every penny. The injectors in my Mercruiser 7.4l were gumming up and I was told they needed replacement. I put two bottles of this stuff in and ran it in the water under load for about 15 minutes and all of a sudden, the boat is running like new. No issues after 10 hours.

I have a T-GDI vehicle and after using this product, I am noticing better acceleration and idling, albeit a very subtle change. Anything that can help clean injectors is a very good product. I will continue to use this product every 4000 miles as instructed in the directions for use.

Got some of this on a promo. Figured about 4 oz a tank should be enough since the 12 oz does a 20 plus gallon treatment. First tank meh. Second tank noticed we saw some mileage increase 38 to 41. Third, fourth and fifth tanks averaging 44 with a high of 48 (lotta downhill) and I started high (in elevation ;-) ) I believe the beast, 2012 Goldwing, has cleared her throat. Now I put in every third or fourth tank.

I used this on my truck, car, bike and lawn tractor. It does what it says, all ran better and truck showed a slight mpg bump. Best part, works great with capless fuel systems!

Great stuff I use every oil change

Helps keep your engine cleaned and running right!

On the first tank I noticed a difference in the engine. It was very smooth and quiet. I will use it again

First time using this product so we will see.

I have used this a couple of times now in my expedition and the performance improvement is obvious. Smooths out the motor at idle.

I add to fill up a couple of times per year. Make the vehicle run smoothly and improve performance.