I purchased a 1996 Jeep Grand Cherokee with 196,000 miles on it. The transmission was beginning to act up after a couple of months driving the vehicle. Read more

Just a quick note to tell you what Cerma has done for my trucks.

We put Cerma in the whole system of one truck with 798,000 miles, (engine {470 Detroit}, Read more

I am the guy who spoke with you at length and purchased some fuel treatment, oil additive and gun lube. I put the fuel and oil additives in immediately. Read more

CERMA is the real deal! If you follow the instructions after applying product to your oil, you will notice less noise, better fuel economy, about 1.5 Read more

I have purchased 2oz of CERMA engine treatment with STM-3 and got a free 2oz of Fuel Treatment. Thank you for the gift! Vehicle is: Subaru Legacy 1997 Read more

6/3/2015: John, I have been using the Cerma Evo grade oil in my 2012 Prius for over a year now an was thrilled to get 53-54 miles to the gallon. Recently, Read more

I own a 2002 Mack semi. My truck started using 2 to 3 gallons of oil per week. I was told I needed to rebuild the motor, rings, sleeves, rod, and main Read more

Several tens of thousands of miles ago, I found out about Cerma Engine Treatment -- yep, I was skeptical. But talking with these wonderful folks convinced Read more

The best. Powered up my 12 year old truck -- it feels like new. I have a Ford F250, 2003 with 200,000.00 miles and in good shape, but after I used this Read more

Dear John: I had an appointment with Acura concerning an alignment. My 2000 Acura TL has 302,000.00 miles. As you remember from our phone conversation Read more

Just prior to winter in 2012, I used 1/3 an ounce of Cerma engine treatment in my 1999 Craftsman snow blower. In the past it was necessary to have the Read more

Thanks for the emails, i am getting better gas millage in my bike, was at 39 MPG. I am now getting 43 MPG after 300 miles of riding on Cerma! --Greg J. Read more

Well its finally complete,.. my VT has been engine treated, 6000 mi. ran in, and turbo treated, 6500 miles ran in. 7500 mi. can around, the "carrier" Motul Read more

FedEx driver reports truck running smoother with increased power, as prior the truck was having problems getting up to freeway speeds. Driver was very Read more

I used Cerma STM-3 Engine Treatment in my 2002 Toyota Sienna Minivan; Fuel mileage went up from 260 mile per tank to 355 miles extremely happy with gas Read more

Hello John,

My Cerma Story #1) Treated a Chevy a week ago. Someone very close to me, I cannot disclose who, got out of the car today and removed some Read more

Would recommend this to anybody who is looking to keep their engine long lasting no matter how many miles is on it. Already used on three of the four cars Read more

CERMA changed my old engine with 225,000 miles to a NEW engine with a power never seen. When I received the package, i opened it and i was suprised seeing Read more

The amazing Cerma technology! The reason I say amazing is because I worked at Douglas Aircraft in the engineering changes on the DC-9 program way back Read more

John,
I applied the product to my Lexus, and I could tell and real difference in power. If I can get my right foot to cooperate, I bet I’ll see fuel Read more

TRY THIS IN YOUR ENGINE.........I was amazed, within 15 mins how better my engine sounded and now my car rides as good as ever........Cerma is awesome. Read more

GREAT product I use CERMA in EVERYTHING from my TORO push mower to both my Chevrolet vehicles with GREATLY improved gas mileage & lawn mower that runs Read more

Fuel Treatment from April 14th, 2015: Great stuff. My gas mileage definitely goes up steadily, as per my digital gauge, when I use this stuff. I absolutely Read more

So...I just got the oil changed to Cerma 5W30 and could feel a huge difference just starting the car up. Engine vibration in the pedal has gone almost Read more

Amazing!! This stuff really works as described and then some. I used it three 2015 GMCs (Denali 1500, Denali 2500, and Yukon XL). Smoothed out the idles Read more

6/5/15: I wanted to let you know my 1997 Toyota is running like a top since I started using your products. I am ready to change to Cerma Oil and am looking Read more