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Engine Treatment

What it's for:
  • engine
What it does:
  • Lubricates
  • Preventative Maintenance
  • Performance
  • Stops Noise
  • Cleans
  • Reduces Friction & Wear
  • Quiets Noisy Lifters & Valves
  • Removes & Prevents Sludge
  • Keeps Engine Clean
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The Legend: Rislone Engine Treatment

This is it – the product that made Rislone a legend. It used to be called “a tune-up in a bottle,” and was the very reason the phrase “tune-up” was invented. No joke — this is where all that started. Fast forward to today: eating clean and healthy foods ensures that our bodies perform at their best. The cleaner we keep our system, the better it runs. This is true for our cars as well.  A cleaner engine is a better-lubricated engine with less friction and wear. Our famous, award-winning Rislone Engine Treatment does just that. This product contains high quality penetrating lubrication oil, combined with protective engine additives and special cleaning agents. It’s like a healthy diet for your car.

Its multi-grade formula allows oil to flow freely and provides protection over a broader temperature range. The unique Rislone formula is designed to penetrate into valve seats, bearing surfaces, piston rings and ring grooves, where sludge and varnish is likely to form. These deposits are gradually removed with the next oil change. There’s a reason it’s the #1 product chosen by race and off-road clubs.

Discover World-Class Engine Performance

Have you ever thought about cleaning your engine? We don’t mean the outside. We mean cleaning the inside, where years of oil, fuel and coolant use has created a buildup of sludge and debris. Cleaning all that out can allow your engine to run smoother, develop more power and eliminate excess wear. The result is a more responsive engine that gives better fuel economy and will last longer.

There are several reasons why automotive engine sludge removal is important:

  • Oil starvation: When engine debris and sludge builds up, it can starve certain areas of your engine of oil during operation. The moving parts of your engine, like the pistons and the crankshaft, need constant oil flow for lubrication. Sludge acts as a barrier to oil delivery and can cause problems.
  • Dirt and debris accumulation: While sludge itself can be considered dirt, it’s the solid particles that are trapped within that are the most dangerous. If they get pulled into the moving parts, they can damage and wear down metallic surfaces. Sludge doesn’t pass through your oil filter, and therefore can’t be cleaned.
  • Blockage: When sludge buildup is significant enough, it can start to block your oil pump and oil galleries. At this point, solid sludge can get pulled into your pistons and start to cause serious damage. Driven too long like this, engine sludge can destroy an engine, forcing costly and time-consuming repairs, or even replacement.

Removing engine sludge is necessary to keep your engine running properly and giving you full power, maximum fuel economy and increased longevity. Thanks to almost 100 years of experience in the business, we have perfected our engine treatments and cleaners. Our award-winning products are simple to use and often give noticeable results after the first application. They remove even thick sludge that otherwise could cause serious problems for your engine.

We’re proud of all our automotive chemicals, treatments and cleaners. They’re proven, innovative and effective. We apply this philosophy to everything we do. Thanks to our engine treatment products, you can give your engine the tuning and cleaning it needs to get it back to like-new condition.

Use our online store locator to find the retailer nearest you and pick up a bottle Rislone Engine Treatment before your next oil change.

Regular use of Rislone Engine Treatment, with oil and filter changes, will keep your engine components running smoothly. Simply watch Bobby and Caitlin in our how-to video to see how easy it is to install this product. Peak performance and car health has never been easier.

Part Number: 100QR
Dosage: One Bottle Treats 4 to 6 Quarts of Oil
Size: 32 fl. oz. (946 mL)

Testimonials & Reviews

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  • “I learned about your product from a GM mechanic I knew. I use your products exclusively in all 3 of my classic cars. I have never been disappointed by them and as a result, several members of my car club also run Rislone products in their vehicles.”

    Roberto J. - Las Vegas, NV
  • “It's great product I can tell you that..I bought a old 78 Chevy pickup that smoked badly, looking under the valve cover the person that owned it never changed the oil. So I cleaned out what sludge I could with screw driver and putty knife and added a quart to the oil (this truck put out a smoke screen it was burning oil so bad). I ran this truck for a month just sitting in the yard, drain the oil, added new oil and another bottle of Rislone...and the smoking stopped and oil burning was now a minimum. So I a firm believer in this product and now have my son's Sebring where the oil is not flowing as good as it should. So another test of Rislone and boom it worked and made him a believer...thx Dale.”

    Dale K. - Bentonville, AR
  • “The best I've ever used.”

    Dan R. - Lucknow, ON.
  • “Just wanted to tell you my story after seeing your sweepstakes Rislone Mustang. In 1964, fresh out of the the service, I bought a used 1960 Impala sport coupe. It had a 348 with 3 on the tree. It had been owned by a guy that had a gas station in my home town. Had to be one of my favorite cars. I changed the oil (Pennsoil) every 200 miles and every other oil changed I made up the extra quart required for the filter change with Rislone oil treatment, the same way the previous owner had. At 105,000 miles, I changed the valve cover gaskets, I was amazed, the inside of the valve covers were like new and sludge free, as were the heads, valve springs etc. The amazing part was the white paint marker (can't remember now it is was letters, numbers or both) were like they were just marked at the factory. What a great product you have always offered.”

    Bill S. - Hamlet, IN
  • “THANK YOU! My 16 year old daughter bought a fixer-upper car that she just had to have. It is a very nice 2002 Buick Century Limited with 126,000 miles on it. When we bought, it had a lifter knock, blown intake gasket, and damage from hitting a deer. I tried the diesel in the engine before the oil change no change. ATF in the oil no change. Another product in the oil and a little change. Did the 2nd oil change in 100 miles to get the other products out and added Rislone and everything I read was it would be good in seconds and started it up. I thought well I will take it for a short drive and make sure all else is good and was stopped within a block for cows being on the road. I got out of the car and no knock. YOUR PRODUCT IS AMAZING. No more lifter knock and it only took about 5 minutes all I can say is thank you. I now look forward too many many trouble-free miles for my daughter. Thank you again from one happy dad.”

    Travis G. - Lakeview, OR
  • “I have used Rislone in my cars for 53 years. I change oil every 2000 miles. My dad recommended I use it because he was a mechanic. Another good mechanic I used worked on an older car for me and stated "This is the cleanest motor I have ever seen." I will continue to use this product as long as we are still driving gasoline automobiles. Thanks for an excellent product.”

    Jim B. - Maryville, MS

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