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

Good afternoon,
I wanted to report your product results for my 2009 Kia Optima with 35k miles. I added a bottle to the automatic transmission and have Read more

O ahhhhhhh mazing :) At first glance, i thought the price was a little crazy.but some in-the-know car guys that i know convinced me to give it a try, Read more

I think we performed a pretty significant experiment with your product today. My training officer did not return to the office but I will get more information Read more

I recently stopped in at my local gas station to fill up like I do twice a week when I met the attendant (Ken Briscoe). We got to talking passing time Read more

Products Used Cerma Engine Treatment, Cerma Motor Oil:
I purchased the Diesel Engine treatment after reading about it and its possible benefits. I am 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

For a freestyle stunt rider, "heat is the biggest problem for bikes”. "Took me some time to test the product in the Kawasaki, but finally was able to Read more

Dear Great Cerma Product, I have just used the transmission and engine treatment. So Far So Good. I notice an improvement with the transmission, and the 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

Hullo John,
I bought 1 bottle of Cerma STM-3 Engine Treatment and 1 bottle of Cerma STM-3 Automatic Transmission Treatment from you in May 2008. I treated Read more

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

Works. 'Lil spendy but damn worked. Bought In april 2014 used in my '04 6.0 F350 4x4 an put some in my dad's dodge '05 3500 5.9 he even commented + on 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

Update: My 2004 TC now has 349,000 miles. At 288,000. It was using a qt of oil every 500 miles now it uses a qt at 4,000. This van has another 100,000 Read more

I used the Cerma foam treatment in the following handguns: .44 revolver, .357 revolver.40 semi, .357 sig semi and AR 15 .223 rifle so far. I am very pleased Read more

9/10/2015:
Hi, Just wanted let you know about the incredible results experienced with your Auto Transmission Treatment. I had already used the Engine Read more

Thank you John,
It was a pleasure speaking to you on behalf of your additives.I was amazed and I'm still smiling and overwhelmed with its results. Sir Read more

1st attempt to test this Cerma engine treatment on my 01 Accord V6 - org 68,000mi on SEP-02 2015. Brand new Mobile 1 full synthetic oil w/ Honda genuine Read more

My name is ECS, i was introduced to your product by a friend. I spoke with John your technical analyst and asked him if this would be a good product for Read more

Dear Cerma, I started using your products in the summer of 2013. I travel all over the country in my 1991 Dodge D250 two wheel drive with a 5.9 L Cummins 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

I never bother writing reviews, however, this product is FANTASTIC!! 560 SEC Benz with 113k miles, about 30k since valves...UNBELIEVABLE!! Cold start 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 have been using Cerma products for close to two years now in my all my vehicles, tractors, excavator and dump truck. I am totally impressed with all Read more

What the ......, this stuff actually works!
Here's the story...1990 Mitsubishi Montero that I bought new. First it was the unofficial Cheerleading Team Read more