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 recently SiC treated a 1100cc motor on a 1984 Honda v65 Sabre VF100S and began with these compression numbers:

Cylinder #1: 120/170 Cylinder 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

I put Cerma Trans in and have noticed the trans shifts better and the temp gauge is reading cooler.

– Drew (10/25/2012, 09:35 PM)

Just received the engine treatment and it works perfectly :)

My car has more torque, sounds great it's also smoother running.
My vtec kicks @ 6k and 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

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'm only 2 days into the treatment with 22k miles on the odo only 100 miles driven since treated and already noticing a big difference when driving it 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

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

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

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

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

Thanks a lot for explaining in detail how Cerma STM-3 works. I'm going to purchase & use one. My vehicle uses 5W-20 engine oil. Its engine has a Multi-Displacement 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 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

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

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

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

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

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

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

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

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

Hi,
Well I have been using Cerma in my 2002 Toyota RAV-4 with 130,000kms.
And what a difference, my gas mileage has improved 15-20% avg, the engine has Read more

8/27/14 - FYI! I had my car at the dealer this morning for a recall service appt. My 2011 Fusion with 81k miles on the 2.5L 4 cyl duratec engine was "quieter Read more