Prolong Super LubricantsPSL11000 Engine Treatment - 12 oz, White

There's absolutely nothing to dislike about this product, it does protect your engine. I have used this product for over 25 years and I can guarantee you that it will help your car last longer.

I have being use prolong engine treatment more than 20 years. My car been through 5 bad over heats , 4 times crack Radiator head. One time heater switch leaking all coolant out ,My car drive without coolant about 5 miles and shut down by it self….piston not locked everything is fine. A 30 years old car with 386000 miles still run fast and smooth . Thank you prolong ! You are really “ no equal in the world”

All the evidence I have for this product is anecdotal. I haven't send my motor oil to the lab to have it analyzed after I drained it. But, it seems to work.A friend of mine is a racing consultant. He said years ago they were testing the lubricity coefficient of some of these engine additives. Prolong was second. The one that came in first is not available anymore.I had been getting around 47 mpg in my 1982 BMW motorcycle, on average. I put Prolong in with Brad Penn 20w50 high performance oil. On a ride to Missouri, I got 51 and 52 mpg on two consecutive tanks. At the time I hadn't drawn the correlation. I was puzzled at the increase and asked a mechanic friend of mine if he had any theories. He said, "Did you do anything to the oil?" Then the light went on. The only thing different was the Prolong.When I was still teaching shop at a Career Center, we entered a state "high mileage" contest in which we built a car with a Briggs and Stratton engine, aluminum frame, bicycle wheels, and carbon fiber body. We used Prolong in the engine. The car got 250mpg, and we won the state contest.Lastly, when I look at all the reviews for Prolong, overwhelmingly the majority says it is a good product.With the good luck I had previously, I decided to try it in all my engines, including lawnmowers. So, I bought a gallon. That lowered the price significantly.

Prolong and I go back to the early '90s. We worked with the original developers to bring Prolong into the motorcycle industry. We marketed it as VSL, (Very Special Lubricant). It worked amazingly well.I still run it in all my cars and motorcycles.Buy the gallon size, much better price per OZ.

Use it at every oil change

value

Este producto lo recomiendo al 100%. En esperiencia propia , hubo una situación donde la degligencia de un establecimiento de cambios de aceite, llevé mi auto para servicio de rutina; ellos olvidaron echar el aceite al motor. Ese auto estuvo funcionando 1 mes sin aceite, y cuando me percaté. No hubo daño, ni problemas con el motor. Milagroso, y cierto. Gracias a que siempre uso el prolong con mis autos.

I have been using Prolong in my 7.3 Power Stroke Diesel since it had 30,000 miles on the engine. I currently have 450,000 miles on the engine and it still is running strong. I believe that it has helped save my engine when I couldn't afford to fix some oil leaks in a timely fashion. I have had my crank seal and oil cooler give out on my engine and my oil level got below the "safe" level a couple of times before I added oil. Despite this abuse my engine is still running strong. Using prolong is just part of a regiment that will keep your engine running for a long time.For the first 150,000 miles I changed the oil and filter every 3,000 miles. After that I started using the K&N brand of oil filter and changed the oil every 5,000 miles. I went to the K&N filter because it filters down to 10 microns, where the average filter only filters down to 30 microns. Also, it is important to use oil that is appropriate for your engine. Since my engine was built in 2000, it requires more anti-wear metals that are not found in modern oils. Since I had just realized that fact, I believe that the Prolong has protected my engine despite the fact that the oil I was using did not have the anti-wear metals in the oil. Despite this fact, my mechanic said that my turbocharger was tight and had no play what so ever. He was amazed by the fact that I have 450,000 miles on the engine.Even though Prolong says it won't warranty any engine that is used for commercial purposes or if the vehicle has been modified, don't be alarmed. I use my 4X4 van as a delivery vehicle and I have 37" Dick Cepek Fun Country II radials. The van empty weighs in at 7,500 pounds and I expect to get more than a million miles out of my engine. I just recently put a new high-volume high pressure oil pump, performance injectors, and a 6 position chip into my van. It also has a 4 inch exhaust and K&N Air Filter cartridges. The vehicle has tons of power and gets great fuel economy.