June 25,2012

Mr. Lee Lippert President
DSX Equipment Technologies LLC
Jacksonville, FL 32239
Re: DSX Products

Dear Lee:

I was introduced to DSX extra in 2008 in Atlanta, GA by one of your salesmen. Somehow we started talking about engines. I told him I was going to rebuild mine, although I didn’t think that I really had to, but the truck was three years old when I purchased it and had a little over 600,000 miles on it.

My truck is a 2000 Kenworth WL900 with a Cummins N14 Plus engine. It was pulling dump trucks at the time I made the purchase, was way overloaded most of the time and was getting 4.9 MPG, give
or take. At about 1,020,000 miles she started an oil leak between the head and block. I did not know what kind of driver the previous driver was, so to be safe I rebuilt the engine.

After the first 18,000 miles, I started using DSX Extra and have been doing so consistently for over 700,000 miles. The engine still runs like new. The engine, transmissions and both rears are running at or near, occasionally a bit less, than 150 Degrees. I have replaced all temperature gauges since I did not believe gears, transmission and rears could run so cool. Fuel mileage is now about 5.8 MPG to 6.1 MPG. No heat! No friction! No wear!

When I have to downshift, I have bad fuel in my system. Other than that I don’t downshift. I run the back roads in Georgia. Good roads, but hills on top of hills. I set the cruise and let it do what it does. I see about a 9.5% to 10.0% increase in MPG. I am very pleased with DSX Products.

DSX Defender II wax. At night, in the rain, if you didn’t see the rain hitting your hood you wouldn’t know it was raining. Pay attention at night, when you see some of the bugs coming at your windshield and not hitting it, amazing. Clean up time is good.

I run between 25,000 miles and 27,000 miles between oil changes and have gone as high as 30,250 mile between oil changes with no burn of the oil. The oil still has good body and is clean to the touch and no burn odor. As we have discussed, I could probably go further between oil changes but even changing from 18,000 miles is hard changing when that is what you have always done. Best of all, my truck still runs great!

Thank you for all the help over the last five years.

Joe Johnson
Leesburg, GA


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