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

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

I added the Cerma to the engine (7.3L IH diesel) and power steering box but not yet to the rest of the drive train. When I first put my foot on the gas, 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 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

Reposted from http://www.amazon.com/Cerma-Gas-Ceramic-Engine-Treatment/dp/B00AZONLUC/ By Brad on February 25, 2015

This is the best stuff I've ever Read more

At first I thought this was another slick50 type product but after checking out the website and finding no bad reviews I said what the heck let me try Read more

Hi, After 2000 miles my 2010 BMW 550i it runs better, no engine noise and 2-3 more MPG. Thanks ! -- Stephen K.

When I first went to use this product, I was a bit skeptical, I had an issue with my truck starting. I had tried every chemical to run through the gas Read more

We drive a 2005 Ford Escape that we leased new. The sticker for mileage said 19 city 22 hwy and we got an average of 20.5. We tried the cerma with stm3 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

Dear Cerma, I have attached a photo of the average MPG on the 2008 Cadillac Escalade which was treated at 183,743 Miles. At 183,901 miles, MPG average Read more

YOUR ENGINE TREATMENT IS THE BEST VALUE FOR THE MONEY AVAILABLE IN THIS OR ANY OTHER WORLD. IT WORKED SO WELL ON MY INCURABLE INTEGRA ENGINE, I ALMOST Read more

I treated my 1998 Dodge Diesel Pickup with 6 oz Cerma Engine| Treatment and the engine smoothed up and has much more power. I am very satisfied with this. 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

Thank you Cerma! The day I put Cerma in my engine it smoothed out my choppy idle at 800rpm. And even today it is still getting 5.5mpg to 6.0 mpg driving Read more

I've already used Cerma STM-3 Engine Treatment on 1 vehicle and plan to use this shipment to do a second. Great product, great support. I love this product, Read more

Just treated my 2007 Toyota Avalon with the Cerma Engine Treatment and the Cerma Transmission. Car is running smoooooth (the vibrating is down to almost Read more

I am amazed at this product. I put Cerma STM-3 in my 2009 subaru imprezza and went from 33 mpg hwy. to 38 hwy! the engine seems to be so smooth you can't Read more

Best product yet. I am a contractor. I put a lot of miles on my trucks -- about 500,000 on one truck that I bought brand new 4 years ago. I put in Cerma Read more

Update from NZ on Cerma: Hello, December last year I purchased several products from you. I changed my oil ran the vehicle for a while the added Cerma. Read more

December 2007 - I treated my 2002 Harley Davidson Custom Bagger motorcycle on the trip to Arkansas. The main thing that I noticed is the fuel mileage 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

Cerma Engine Treatment. My wife bought a brand new 2014 Jeep Grand Cherokee last September. She had approximately 15,000 miles on the engine when I added Read more

I have used Cerma for about 4 months on different cars and one small truck.

Our 1991 Subaru was getting 19 to 20 miles per gallon when I treated the Read more