REV X High Performance Oil Additive - 4 fl. oz. Bottle

Thought it was another “snake oil” type product. This stuff really works and helps the Ford 6.0 diesel. Especially here in Denver in the winter. Without RevX even over 90 degrees starts ok, but sputters until normal temp is reached. Below freezing without never sure if it will start, even with block heater plugged in. With RevX installed in winter cold starts are great and no hesitation even while cold. Don’t have access to power at work for block heater so even after sitting all day in below freezing, cold starts are easy and no hesitation. I’ll not go without in winter until I can order my new truck. I bought some for my boss and he said it was like he had a different engine almost immediately.

I have a 2003 Duramax 6.6. I just recently did an oil change 12 quarts and I put one of these in a day after I did the oil change and noticed a big difference in my turbo and power.!! I was so impressed. I ordered a second bottle and just put it in today.!! This will be my new routine while changing oil two bottles treats 8 quarts good enough for me. Recommended would be three bottles for 12 quarts but even after one I noticed the huge improvement My Truck is fast.!!

Works great

Great product. Super fast shipping

It definitely does something. While the additive did nothing to quiet my engine, I saw a 2 mpg fuel economy increase. Whether or not one can justify buying this product repeatedly to possibly achieve and maintain that increase of fuel economy is something they'll have to decide after taking numerous factors into consideration. Conclusion: I'd say give it a try.

Rev X works great in my superduty 6.0 diesel Before I used this product my truck would run terrible in colder temperatures, if it wasnt for this product I would have sold this truck 7 years ago but I just add 4oz of rev x every oil change and i have no cold start issues and it runs good when the temperature is 9 degrees outside. I'm very picky and change the oil every 5000 miles and i let my truck warm up a few minutes before I take off, I'm going on 400000 miles and for the most part I've had good service out of this truck.

I used a full bottle in a 10 qt capacity Mercedes Turbo Diesel engine that was making noxious diesel exhaust fumes (stuck injector or rings?). $35 seemed expensive but thought I'd give it a try before replacing injectors after reading positive reviews. Rev X fixed the issue on the first drive and it hasn't recurred for 2 months. I changed the oil recently and added about 1/3rd a bottle to see if that's enough to prevent recurrence. Have driven about 1000 miles - so far so good. I don't know what was wrong with my engine or why the Rev X worked, but suffice to say I'm very happy with this product.

I own a 2005 6.0 Powerstroke and religiously service my truck with motorcraft filters and Mobil 1 oil every3000 miles. Recently I began to show signs of stiction and was not looking forward to replacing the injectors. As a Hail Mary I poured in revx and within a day all stiction has cleared and no injector codes are coming up. She runs smooth and pulls like a freight train again. I do have aftermarket larger injectors , turbo , intercooler, ficm, tuned and deleted . The truck gets worked and even if this holds until the end of my busy season it’s a blessing .