I just want to state that other than an amazing product, this company has amazing customer service. The day after ordering my Cerma Engine Treatment I received a call to inform me that I did not need a full 2oz, and then they asked to change my order to a 1oz and refund a portion of my purchase. I also received a complimentary Cerma Fuel Boost 2 Pack. Most companies would have just taken my order and my money, but this shows that these people are honest and care about what they do. Thank you Cerma. -- Tyler C.

This stuff is crazy good although I need to replace injection pump on my Mack 350. The Cerma Engine Treatment for Diesel 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)

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 for months. I put Ii t in the bike today and within an hour I noticed it working. Wish I hadn’t waited so long. What have you got for my tranny? -- Joe Matteis Branford, CT via text from CermaLube

Unbelievable MPG increase!! My new 2015 subaru outback 3000 miles had 27.4 miles per gallon. I added Cerma Engine Treatment to the oil chamber under the hood, reved the engine up to 4000 rpm's for a few minutes, then drove it hard for 30 minutes on streets and freeway mostly. It's been 8 months and this car just keeps climbing in MPG every month. I am currently getting 38.6 MPG!!! Yes I'm very impressed and honestly surprised at the results. It was worth the $$$ for sure. -- Jennifer V. via Amazon (Verified Purchase)

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 Wade W.. Thank You Cerma!

Original: Just finished 4800 miles on the Cerma Engine Treatment. Wow, my 298,000 mile cab was using a quart of oil every 900 miles. Now not a drop . It runs so quite, you can't hear it run !! I'm impressed! Also added the Cerma Transmission Treatment. As I service my transmissions every 35,000 miles, they are well maintained, but after the transmission treatment you sent, it is much smoother!! Wow!! I have a lot of cabbies asking me about the product. Thank you -- Wade W.

I put Cerma Engine Treatment into our 1987 Suzuki Samurai. It completely smoothed out the idle, and improved our gas mileage by about 18% right away! Love this stuff! --Ethan M. via Facebook

Purchased a 1990 Buick Reatta with 143,000 miles on it. It runs great with the Cerma products I just purchased, Cerma Engine Value Package.  I have had a lot of success with your products in my other vehicles, a 1997 Toyota Avalon, a 1991 Mercedes 420SEL, a 1988 Cadillac Eldorado, and a 2006 Mercedes E350. Thank you! -- Raul

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., Wolcott, CT

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 on the highway and even in the city. I must say I've been made a believer. The car feels more normal and definitely feels like it runs much smoother when really getting on the gas. As for the idling, starting to notice that it feels more 'confident' when idling now than it did before. Definitely money well spent. --- Sly4c

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

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. Great product. The fuel boost improved harmonics and MPG so much so I am ordering again. -- D. Watson via Amazon (Verified Purchase)

The best. Powered up my 12 year old truck -- it feels like new. I have a Ford F250, 2003 with 200,000.00 miles and in good shape, but after I used this product I felt the change -- more power, quieter, faster to respond. I feel like I have a new truck. I also did the transmission, did not feel any changes but for prevention. However, the engine treatment -- wow, right away ...recommend it to all my friends. -- Giovanni via Amazon (Verified Purchase)

My fiat now runs like a 6cyl. Boy has it got power. It now beats lots of 6cyl. I did my engine using EVO oil and fuel boost. -- Bill D.

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 , don't even know they were running, More responsive, and most importantly no lifter noise when you start them up first thing in the morning. Also increased oil pressure by 10psi. Amazing product!! Intend on putting in my fleet of dump trucks 15 liter Cummings ISX. -- Amazon Customer via Amazon (Verified Purchase)

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 engine seems to be idling smother and faster. Most pleased with my investment on a 191K mile CHEVY Venture 3.4 van. -- Robert F.

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 mileage now is 185,029 -- 1,286 miles after the treatment. The engine runs very Smooooth. At this point I would truthfully have to confirm the Cerma Brand Promise...Delivers! Thanks Cerma! -- Michael H.

"For a freestyle stunt rider, heat is the biggest problem for bikes. Took me some time to test the Cerma product in the Kawasaki, but finally was able to try it out....definitely amazed!!! ... Dropped engine running temp by almost 20 degrees." -- Josh Borne

Josh Borne is a championship freestyle competition performer, a premier professional freestyle extreme athlete, and a world renowned competitor on the XDL Championship Sportbike Freestyle Series and multiple other circuits. Borne has traveled across the nation and around the globe showcasing his high energy talents to crowds of all ages.

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 them. CERMA works. Way beyond anything.... Those of you contemplating its use, what are you waiting for. The SS turbo is going to heat up everything, CERMA AT fluids and AT treatments will enable the car to handle it in conjunction with some race quality SETRAB cooling products. Those that doubted and still won't admit it, .........Show me better, I defy you too. You can't. You won't. See you at 100K guys. -- Peter K. (aka Gaijii)

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 to the Northwest and back to the Midwest a majority of the time. I added Cerma in at 825,000 miles, now truck has 1,016,000 miles. I think my engine should have been in-framed when I first got it. But Cerma allowed me to keep running. Initial fuel mpg was 4.5-5mpg per long trips. And just the other day I averaged 5.5-6.1 driving east from From salt lake city, on I 80. My temp gauge pulling long grades loaded at 79k never got above 220°. And on level road my temp would sit at 185°. Thanks again! -- Vincent J.

I just wanted to tell you about my Volvo semi that I drive. It is a 2015 Volvo Day Cab with A/T. It now has 39,500 miles on it. I treated it at about 10K and fuel economy increased even though it was a new truck to about 4/10 mile per gallon. When the oil was changed by the company the mileage dropped about 1/10 Mile per gallon (Not Cermax Oil). When I treated the trailer axles I gained about 1/4 mile per gallon. The truck rolls better and I have noticed that when going down hill I gain 4MPH after treatment than before treatment. I checked with one of the other drivers with the same truck running the same route. I am getting even after the oil change 7.3 MPG and he is getting between 7.0 and 7.1 MPG. I also have 8 tires on the ground compared to his 4 tires on the ground. -- Chad S. Osage, Iowa

Engine Treatment: Added CERMA and gas mileage has increased and harmonics are much better. Love to drive my car more than ever. Bought a car with over 223,000 hard miles. Added CERMA and gas mileage has increased and harmonics are much better. Love to drive my car more than ever. -- Scott S. via Amazon (Verified Purchase) Transmission Treatment: Bought a car with over 222, 000 miles on it. Added it, and the trans works great. Still not finished yet. Much quieter and smoother. -- Scott S. via Amazon (Verified Purchase) Fuel Treatment: Worked as advertised. Car runs smoother and got over 33 miles per gallon on a recent trip. Not bad for a v-6 with 234,000 miles on it! -- Scott S. via Amazon (Verified Purchase) Power Steering Treatment: Worked as advertised in both cars I used it in. Especially my older Suburban with 223,000 miles. Had a pesky power steering unit that was giving me problems, but not any more! -- Scott S. via Amazon (Verified Purchase)

I bought a ls1 5.7l VZ Commodore Utility at auction driving home the check engine light was on ( engine code low oil pressure) and the oil light came on and the engine had a knocking / ticking sound in the motor yet oil level was normal i knew i was in for a big $ repair job on engine. i was recommended to use Cerma by panacea bocaf in brisbane australia. I had nothing to loose so warmed up the engine and poured a bottle into the motor and wow!! what a difference it made in just about 10 minutes. The ticking / knocking noise was gone, the check engine light turned off and red oil light turned off. i was stunned that a product could do this. Mate this Cerma product is liquid gold as far as I am concerned. the more km i drove the better the motor sounded thanks for saving me from spending big $$$$. i will always use this product for any future vehicles I will own. -- Robert K. (Laidley, Australia)

I am the guy who spoke with you at length and purchased the engine treatment and fuel boost, and put them in immediately. In addition, I have run 2 additional tanks of fuel boost. The bike is running great! And the lifter noise has been reduced. I also put the fuel boost in a friend's Honda 1300 Shadow that he just bought from someone who had stored it for four years. It was running poorly with lots of issues. A loud 2 into 1 collector with no baffling, no back pressure, it had to be run with the choke partially on, so it was starving for fuel. Either not jetted to the exhaust or plugged with varnish. I had to ride it from North Adams halfway down CT to his home since he had injured himself. I ran the tank well past reserve, gave it the fuel boost, and gassed. As I pulled up to his house, the car was running well, and with the choke off. -- Kurt P. - N Adams, MA

I was a skeptic, but when I added the Cerma Engine Oil Treatment to my Yanmar, the change was amazing! Within 20 minutes the engine smoothed out, became much quieter, and is clearly running much better. I can pull an extra 300-400 rpm – that means more horsepower out the shaft – without smoking from overloading the engine. I've also started using the fuel treatment and it seems like she's running cleaner, too. Thanks, Chuck W. Danvers, MA

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. -- Spectacular Motoring via Amazon

I have just added the first bottle Fuel Boost to half a tank (full tank is 15.9 Gallons) and only after 50km driving my very old piston knock was gone. Seriously, I have not yet touched the 2oz CERMA engine treatment.

I have purchased 2oz of CERMA engine treatment with STM-3 and got a free Fuel Boost. Thank you for the gift! Vehicle is: Subaru Legacy 1997 Wagon , VIN: xxxG5LJ4WG08xxx, European version, 2.0lt. Engine, AWD, NON Turbo. Mostly driven on LPG(85-90% of the time) ---Best regards, Ivo K.

I purchased the Engine treatment after reading about it and its possible benefits. I am so happy I did. It literally did reduce vibration within seconds of pouring it in my engine. It also slightly reduced the normal 7.3l Diesel ""cackle"". Unbelievable product. I am now using the Motor Oil and do not plan on using anything else now or in the future. -- Vance W. Omaha, NE

FedEx driver reports truck running smoother with increased power, as prior the truck was having problems getting up to freeway speeds. Driver was very happy to have treated this truck with Cerma Engine Treatment, and is looking forward to changing out to Cerma Motor Oil so he can feel safer while driving on the freeway.

For the complete video goto: https://www.cermastore.com/testimonial-cerma-fedex.html

Vehicle: 2005 Chrysler Sebring with 54,000 miles. Product Used: Cerma Engine, Cerma Transmission, and Cerma Blue Ice Was skeptical despite enthusiastic recommendation from a mechanic friend. Too much snake oil on the market. No longer. Single parent with 3 teen drivers and a fleet of 5 vehicles from 50K-120K on the engines. In all cases, idle quieted and smoother. Acceleration and drift improved and AC cooler (used A/C treatment as well). That is the subjective. Objectively, all cars with gas mileage computers show 1-2 MPG improvement since treatment which is real given 4 different drivers, 3 of whom were unaware of treatment. Very pleased. Though costly will ultimately pay for itself in better mileage and I would guess, less maintenance/repair. Cannot recommend strongly enough. Buy this stuff! --- Don S. Howell, NJ

I put both transmission and engine treatment in our Maxima last night,drove about 35 miles. I noticed a smoother running engine right away. Drove another 50 miles today, gas mileage is up about 2 miles a gallon. Will switch to Cerma Oil in about 3k miles. -- Sherman J. Round Rock, TX

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. Thanks for some great products. -- Raul

5/15/15: I spoke with you when I first read about Cerma and have since purchased the transmission, power steering and oil treatment for my two vehicles. The 1997 Toyota is running even smoother than before. Transmission shifts like a dream and the power steering has quieted down by about 50% and continues to improve with more driving. My Mercedes also runs like a dream and engine noise except under heavy acceleration is almost non existent. Thank you for the product and the guidance. -- Raul

I had an appointment with Acura concerning an alignment. My 2000 Acura TL has 302,000 miles. As you remember from our phone conversation an application of the engine treatment gave me a very noticeable increase in gas mileage. But, also, the engine performed smoothly and very efficiently. When Acura technicians heard the engine (unaware of the Cerma STM-3 engine treatment I added) they could not believe with such high mileage how quiet and smoothly it performed. The technicians put the engine through a series of diagnostics and with a sense of disbelief and said it is functioning like a new engine. No appreciable knocks or vibrations etc.etc.etc. They also took it out for a road test. I never did tell them about the Cerma treatment. In short they remained stupefied as to its performance and lack of hesitation as is so customary in an over exhausted engine. -- Gerald S.

This is the best stuff I've ever used. I did not buy from Amazon but bought the Engine Treatment direct from the manufacturer. Now that being said, this is the best stuff I've ever used. I have a 2007 Chevy Colorado with an Inline 5 cyl. Engine. Did not know at the time I bought the truck that inline 5cyl. engines vibrate badly do to to the extra 5th cyl. and I mean really bad vibration at stop lights and especially when I first crank up in the mornings. Poured the Cerma in like it said to and no more vibration I mean right then and there immediately. I've driven about 800 miles so far and love it. So whoever said this stuff does not work is full of it. I am an ordinary guy not a paid spokesman or anything like that. Let me put it this way I'm going to buy two more bottles for our car and minivan I like it that much. And going to buy some for my trucks transmission to. My truck is the guinea pig. I hope this helps. -- Brad (Reposted from Amazon)

I tried Cerma in my truck first and after 1 1/2 months my gas mileage went up by 3 mpg . My 2006 Jeep Grand Cherokee 3.7 L went from 14 mpg to 17 mpg local and hyw from 22 mpg to 25 mpg. Then I put it in my lawn mower. Before it was smoking and after 3 times mowing the lawn it stopped smoking. I bought the 2 cycle oil mix and my snow blower worked great this winter. Thanks for this product. -- Seth W. Farmingville, NY

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 the Cerma Engine Treatment. After the suggested 3,000 miles I changed the oil and used CERMAX 5-20W oil. She drove an additional 3,000 miles. The new Jeeps have a built in MPG screen and I almost didn't believe the results. She is getting 4 more MPG on the highway and 3 MPG more city driving. I found this to be almost unreal since this was a BRAND NEW ENGINE!! Excellent product would recommend it and have recommended it to many others! --Dan P. Brookfield, CT

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 tank claiming to "fix" rough starts, all of them failing miserably. I ran the Cerma fuel treatment through and sure enough, next day, my truck started up beautifully. That was enough to convince me to try the transmission treatment to see if it could handle the transmission issue, sure enough after running it through my transmission for a couple hundred miles, 1st to 2nd smoothed right out. Now I've got the engine treatment. This is the only liquid I've ever seen that actually not only works and does what it says, but exceeded my expectations. Excellent product! -- CJ, Danbury, CT