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 System application which is viscosity sensitive according to the manufacturer. Best regards & have a great day. Posted: Read more
Great product, Works as advertised! Used on 4 cylinder WV Passat 2001 (Diesel) and 2011 Kia Forte (Gasoline). After treating the engines with this product and driving 30 miles the cars became quieter. In addition, the engine's operating temperature decreased and after couple of months Read more
Hi John, I want you to know that the Cerma Transmission Treatment fixed my 25 year old BMW M6 manual tranny, which did not want to go into first gear much before. This appears to be a known issue with those Getrag gearboxes. The Cerma STM-3 Engine Treatment made this same vehicle 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 saved. I also used Cerma in my 2000 Dodge Caravan SE; Fuel mileage went up from 245 miles per full tank to 350 miles now. Lastly, 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 tomorrow. We took 2 identical roof cutting carbide chain saws and had the same operator on the same roof make cuts one after 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 left easy! It runs great and is the best running cab in Myrtle Beach. Thank You Cerma!
Original: Just finished 4800 miles on 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 love this product. My engine runs very smooth with this product. Highly recommended. -- MichiganSooner via Amazon
Transmission 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 tell it is running! So then I put it in my 04 dodge hemi sport truck and went from 15.5 to 19.5 mpg hwy! unbelievable!! this stuff 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 of the products! As a result of my confidence in these products, I thought I would try the firearm foam and grease in my rifles that Read more
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 pulls through all gears perfectly. I need to replace my timing chain and I'm sorry I didn't change it before using the cerma.
So Read more
Hi, After 2000 miles my 2010 BMW 550i it runs better, no engine noise and 2-3 more MPG. Thanks ! -- Stephen K.
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. I also put 2 oz in the transmission. The transmission was shifting rough and had a slight leak. After adding the Cerma STM-3 Read more
Heard of this product from a friend put it in my dads 2001 Peterbilt Generator after about 2 min of running it quieted down and I couldn't even tell it was running.. Can't wait to put it in the engine and see what kind of fuel mileage he gets. Great product very satisfied. – John 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 then a brand new engine in any car found on the lot..." according to the service technician who worked on the car.
8/14/14 Read more
02-23-2016, 10:09 AM
I will say I'm only 2 days into the treatment with 22k miles on the odo only 100 miles driven since treated and already 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 filter before engine treatment applied, this accord runs avg mpg 18 / 24. Engine seems quieter after 80+ miles on the road. -- 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 my car he said that indeed it would. I ordered one bottle of the Cerma Engine Treatment and used it in my car for approximately 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 was 16.5. At 184,619 miles, MPG average was 17.0. At 184,938 miles, MPG average was 22.2. Quite a difference, impressive. 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 forward to ongoing improvement. The transmission shifts like a dream and the power steering no longer "groans" at low speeds. 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 and they are running like new, if not better than new. Keep up the good work. Now I'm going to get the air cond. treatments for Read more
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 made me forget the pump. Suggestions for a new pump? -- Peter P. via Amazon (Verified Purchase)
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 this, wish could afford more often tried others this works the best for me an my 6.0. Great product the Diesel fuel treatment better 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 it’s not every day that actual owner and inventor takes the time to speak to common folks as myself. John you made me a believer 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 #2 : 142/170 Cylinder #3 : 138/170 Cylinder #4 : 140/170
After treatment, compression improved significantly. My post-treatment Read more
I own a trucking company and have been amazed at the results of the Cerma Engine Treatment and Cerma Motor Oils. I purchased Cerma because my older Series 60 Detroit was smoking badly, particularly when off the throttle. Even though overhauled only about a year and a half ago, the 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 to zero and the acceleration feels smoother. The best way to describe how it feels is by watching the test video that john put up Read more
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 items from the back seat, pressed the all door lock button on the passenger side and went into a client’s office for an hour.  Read more