Prolong Engine TreatmentProlong Engine Treatment is formulated with Prolong’s AFMT™ advanced technology to treat the metal surfaces of both gasoline and diesel fueled engines. As motor oil is pumped through the engine, Prolong Engine Treatment molecules interact with all of the metal surfaces, chemically bonding to create a protective layer that reduces damaging friction and heat. Temperature reduction is especially important in today’s smaller import and compact engines that tend to run hotter. Prolong Engine Treatment is particularly effective under extreme pressure conditions, in the very areas of your engine where severe metal-to-metal contact squeezes motor oil out and away. Prolong Engine Treatment adheres to metal surfaces in the engine, which means Prolong is working to protect your engine even when the motor oil is not yet fully circulating.

Unlike other engine treatments on the market, Prolong Engine Treatment does not contain any solid particles such as PTFE resins, ‘molys’, zinc, copper or graphite. There is simply no other product that works as well as Prolong to reduce friction and heat in your vehicle’s engine.

Prolong is the only engine treatment company to offer a FREE Lifetime Limited Product Engine Warranty and also has the most generous eligibility requirements of any engine treatment warranty available. A vehicle less than 10 years with less than 100,000 miles on the odometer may be registered. Just purchase the 12-ounce size of Prolong Engine Treatment and add it your vehicle’s crankcase (the same opening where you pour in motor oil), complete the warranty registration form that comes inside the package and mail it in.


Product Overview

  • Reduces harmful friction and excessive heat in both gasoline and diesel-fueled engines
  • Formulated with AFMT™ (Anti-Friction Metal Treatment) advanced technology
  • Helps protect the engine in the event of oil or coolant loss
  • Helps restore engine efficiency to optimize fuel economy
  • For both new and older, high-mileage vehicles
  • Free Lifetime Limited Product Engine Warranty
  • Will not void manufacturer warranties, compatible in gas or diesel engines

SDS: Download Prolong Engine Treatment and Booster Safety Data Sheet (SDS)


How to Use

Prolong Engine Treatment is quick and easy to use, just pour it right into the engine crankcase. For first use in a 4 to 5 quart crankcase, pour in the full contents of a 12 oz. Prolong Engine Treatment bottle. You can do this as part of or in between oil changes. Then use the 8 oz. Prolong Engine Treatment Booster for follow-up applications when the motor oil is changed. The Booster size, with the same superior formula, renews Prolong protection to the maximum level. It is recommended that the Booster be used at each oil change, definitely within every six months or 6,000 miles. The vehicle manufacturer’s recommended service schedule should always be followed.

For other crankcase capacities or engine applications, use Prolong Engine Treatment at 10% of the volume of oil.

Available sizes

• 12 oz. Bottle
• 8 oz. Booster Bottle

Also available in Commercial sizes.




I have a 1999 Chevrolet 1500 pickup. This truck has 205,000 miles and has not had a single oil leak or tune-up since I bought it new. Needless to say, I have driven the tires off of this truck several times! Your Prolong Engine Treatment and Transmission Treatment are the reason I am still driving this truck everyday. I put Prolong in the engine and the transmission ever since the manufacturer’s warranty ran out. I will take your product over any warranty any day!!!

Thank you, Prolong, for a fine product.
Alan V., Plano, TX

I have used and promoted Prolong since I saw your infomercial, before you could even buy it in stores. I’ve been extremely happy with all your products. I could tell you about things that impressed me like after 25,000 miles with Prolong Transmission Treatment, I took it to my mechanic to change the filter and transmission fluid. He said that in all the time he has changed the fluid with me using the product there has never been any fine grindings in the pan, which to me means no wear.
W. Maurer, Saint Helen, MI

One of my vehicles is a ’92 Suburban with an odometer reading of 285,000 miles. Since discovering Prolong products, six or seven years ago, I have used both your Engine Treatment and Transmission Treatment religiously. In the past two years I have also used your Injector Treatment and Fuel System Cleaner each Spring and Fall, as well. The results are so amazing that a note seemed in order. The original automatic transmission is continuing to shift smoothly as designed. My mechanic friend is extremely impressed by the engine and transmission performance.
J. Jacobson, New Brighton, MN

I bought a full size Chevy truck in 1991 with 39,000 miles on it. Today, I have 520,000 miles on it! We have been using Prolong engine and transmission treatment since and have never had any engine problems. Our transmission went out at 100,000 miles. When we had it replaced, we put the transmission treatment in. We were driving down the freeway when the transmission started to free wheel. We found one of the hoses was broke. We replaced it and went on our way. Come to find out the transmission line broke at my house about 120 miles from where we stopped. The transmission has lasted 400,000 miles and my truck is still running as strong as ever. Thanks for a great product.
D. Ales, Sacramento, CA

I want to say I use Prolong in all of my vehicles and I will not put no other treatment in them. I use from your engine treatment to your trans. treatment and not even once haves it ever let me down.
I greatly thank you and I will always use Prolong.
Tim B., Dillwyn, VA


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