Testimonials:

What people have to say about EngineMaxx

I put the EngineMaxx on my 2004 C15 Acert several years back and it wasn't more than a mile down the road I called Kenny Jones back and told him I could feel the response and power come up. In my runs between Joplin, MO and St. Louis, MO I used to constantly be downshifting, now I only have to shift 4 or 5 times the entire trip. I will definitely be putting the EngineMaxx on my next truck.
Billy Vaughn
Arlington, TX

This is my third truck with EngineMaxx. Every time I get a new truck, the first thing I do to it now is put an EngineMaxx on. In fact, I wouldn't own a truck that didn't have one installed. Right now I am driving a 2002 379 extended hood Peterbilt with a Cat 600 HP motor and 679,000 miles. Before putting on the EngineMaxx, my lifetime mileage was 5.3 mpg. After installing the product, my lifetime average including all idling time is now 6.07 mpg. It has not only brought up my mileage, but it has given me more power and the truck doesn't smoke as bad. I have recommended the product to all of my friends because it works.
Lance Doubek a.k.a. "Half-Dollar"
Ozark, MO

If a product does what the company says it will do, then I will be very satisfied. With EngineMaxx that was the case. I run a 2004 Cat C15 475 HP (bridge motor). I run all 48 states, and before I put on the EngineMaxx I was averaging 4.8 - 5.2 mpg. I now run between 5.5 - 5.9 mpg. It has done exactly what they said it would. Thank you guys!
Mike Hastings a.k.a "Dough Boy"
Casteville, MO

I had the EngineMaxx and Revelation installed and it has turned my 2005 Cat Acert into a completely different truck. I have had to learn how to drive it all over again. It sounds completely different and shifts completely different. I have gone from 5.5 mpg to 7.2 mpg. People don't believe me when I tell them this until I let them see it on my computer. I love the extra response, power and most of all the extra money that I can send back home to my wife!
Tom Sing a.k.a. “Artist”
Jacksonville, FL

Revelation is a Godsend! We have a 2006 Cummins ISX 500, it has increased our torque, power and fuel mileage. Our mileage is up .5 to .7 mpg and when we go through the mountains, we are no longer dropping 4 or 5 gears, it is 1, maybe 2 at the max. It is a completely different truck now!
Tom & Sharon Bridges
Sedalia, MO

When I put the EngineMaxx on my 1998 Detroit 60 Series 475 HP, I felt the bottom end torque come up, I was pulling hills better, and I was using less fuel. My mileage went from 5.25 to right around 6.0 mpg average. I am looking at a newer truck, and the EngineMaxx will be the first thing I put on it. Not only is it a good product, but the people with EngineMaxx are good, honest people.
Joe Dick a.k.a. "Old Dog"
Houston, TX

I have a Detroit 60 Series 500 hp engine. I was a bit skeptical at first, but when I had the EngineMaxx installed, I was amazed. My fuel economy according to the ECM was 4.8 mpg, and now it is up to 6.5 mpg. My mileage will vary from .7 to 2.0 mpg depending on where I am at and how fast I am driving. My fuel mileage is great, but what I love even more than that is the feeling I get when I pass the big Caterpillar engines on Cabbage Hill on Highway 84 in Washington or the 12 mile hill near Laughlin, NV. I get on my CB and let everyone know I love my EngineMaxx! I am getting the Reveation installed this month (June 2007) and I can't wait to see how it does. If you drive out west and you see a truck that says Old Sarge on the hood, you'll know its me.
John Timmons a.k.a. "Old Sarge"
Portland, OR

I have been driving for over 30 years and and I have tried a lot of different things on my trucks over the years. Revelation is the first fuel savings product that I have put on that actually works! I was running 5.67 mpg on my Cat 3406E before the installation, and I am now breaking into the 7's. I am a very satisfied customer.
David Shuckers
Shickshinny, PA

The first thing I want to say is that the guys involved with EngineMaxx are honest, and that is the most important thing. There is a lot of stuff out there, and EngineMaxx is the only thing out there that I have tried that has done exactly what they said it would do. I run a 2006 Acert 550 HP and I had a For Sale sign on my truck because I couldn't get my mileage over 4 mpg. I took my truck down to Springfield, MO and had an overhead run and an EngineMaxx put on. My truck is now averaging 5.8 mpg. I can't tell you how much this has helped me. Not only that, but driving has been more enjoyable now.
Dan Knipp a.k.a "Two-Tone"
Westburg, KS

I had to write a short letter to thank you, Jim and Dean for the great product you have come out with in the EngineMaxx. As you remember, we had this device installed on one of our trucks some time ago. We have kept very accurate track of what this device has done for us. And we wanted to let you know what it has done and is continuing to do for us everyday.

At the time of installation the truck was and had averaged a 5.8 mpg for over 600,000 miles. And the dyno report showed a best of 436 hp at the ground. After the installation the dyno now shows a best of 5 12 hp at the ground, and the truck has averaged 6.4 mpg for nearly 450,000 miles.

We have gained power, fuel mileage, much better performance, cleaner exhaust emissions. This truck will now stroll up most hills rather then huff and puff to the top.

Now this truck does run team and averages 7000 plus miles every week. To put it in perspective for you, here are some numbers as to what the EngineMaxx has done for us. We put a total of 325,854 miles on the truck during the year 2006.

   Full usage with old 5.8 mpg would be 56,181.724 gallons
   Full usage with new 6.4 mpg was 50,914.687 gallons
   Total savings of 5,267.037 gallons

With the fuel savings of 5,267.037 gallons at a price of $2.50 per gallon we were able to save a total of $13,167.60 on fuel costs during 2006 on just this one truck. We will be installing the EngineMaxx on all additional and future truck purchases and we are looking forward to installing the new Revelation as well. We can't say enough good things about your system and the professionalism your men present.
Kindel Transportation
Fair Grove, MO

I already have the EngineMaxx and just had the Revelation installed and I couldn't be happier. The EngineMaxx allowed me to go 825,000 miles without replacing any injectors, that's 225,000 longer then I have ever gone before. With both products installed, I have seen dramatic changes in my truck. I am not a person that baby's my truck, I run hard, usually 75 mph from Portland to Phoenix, and I have gone from 6.5 mpg to 7.3 with Revelation. With both products, my pyrometer temperature is down around 200 degrees to 750 F and my water temp has dropeed 20 degrees. It really is a no-brainer that it is worth the investment.
John Timmons a.k.a. "Old Sarge"
Portland, OR