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

I just want to state that other than an amazing product, this company has amazing customer service. The day after ordering my engine treatment I received Read more

I've tried them all and Cerma is by far the best product on the market! Better fuel economy, my engine runs smother and quieter than when I had it rebuilt, Read more

I bought a bottle of Cerma on the recommendation of a friend at work. My 2001 Pontiac Formula had a lifter tick that I was hoping to get rid of. After 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

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

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

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

Cerma makes everything run smoother. I was skeptical of Cerma at first, but decided to try it. For example, my wife owns a 2000 Jeep Wrangler. When 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

I was your biggest skeptic. I bought the Cerma Engine Treatment because of how passionate you were about the product. It has been sitting on my toolbox 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

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

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

Update: 4/23/15: Rocket fuel. Just wanted to say that I have now treated all three of our autos with the Engine, trans, and power steering treatments 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

My car has a 1993 mustang motor and 5 speed transmission in a 1993 miata. I put both the engine additive and the gas treatment in the car at nearly the 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

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

Before using Cerma, this car, a work car with 160K miles, would jerk every time it changed gears when you drive and the water temperature would be pointed Read more

I put it in the engine oil and transmission. Transmission stopped slipping on very first drive home from work. I could not believe it!

This stuff is crazy good although I need to replace injection pump on my Mack 350. This product made the truck run the best it has done for a year. Almost 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

So here we are at 50,000 miles. Picture here is the cleanest intake valves ever seen on a GDI motor, by two EQUUS techs with 35 years experience between Read more

Wanted to update on the Lancer. We are 2k miles into the cerma max 5w40 oil and I pulled the dipstick... No joke it looks like I just did the oil change. Read more