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Engine Treatment Concentrate

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Less Is More: A Concentrated Version of Rislone’s Legendary Engine Treatment

Engine Treatment Concentrate: a concentrated version of the product that made Rislone famous. 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.

The cleaner we keep our engine, the better it runs. 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 multivitamin for your car.

This multi-grade formula allows oil to flow freely and provides protection over a broad temperature range. The unique Rislone additive blend 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.

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
  • Do I have to flush my oil after using Rislone Engine Treatment Concentrate?

    No, Rislone Engine Treatment Concentrate is formulated to be left safely in the crankcase for the life of the oil change for maximum performance. It is not an engine flush and does not require draining.

  • Will Rislone Engine Treatment Concentrate work in synthetic oil?

    Yes, Rislone works with all petroleum-based motor oils including conventional, high mileage and synthetic. Rislone is also safe for use with PTFE-based engine treatments and will not alter the PTFE coating.

  • How does Rislone Engine Treatment Concentrate work?

    Rislone Engine Treatment Concentrate gradually dissolves and removes harmful deposits of varnish, sludge and gum from the internal metal parts without plugging oil passages. These deposits form within engines and can alter tolerances, stick valves and rings, cause noisy valves and lifters, and plug oil screens and passages. Regular use of Rislone Engine Treatment, with oil and filter changes at the proper intervals, will keep such deposits to a minimum.

  • How much Rislone Engine Treatment Concentrate do I install?

    One bottle of 4102 Rislone Engine Treatment Concentrate 16.9 oz. is designed to treat 4 to 6 quarts of oil. For larger systems, stationary engines and diesel trucks, use 1 bottle for every 5 quarts of oil capacity. For severely dirty engines, use 2 bottles (double dosage) of Rislone Engine Treatment Concentrate and change the oil and filter after 100 miles of driving.

  • Is Rislone Engine Treatment Concentrate safe for my newer vehicle?

    Yes, Rislone Engine Treatment has the lubricating and protective capabilities of current motor oils, plus additional penetrating properties which do a superior job of maintaining long-term cleanliness and deposit control. Use of Rislone Engine Treatment will not void your new car warranty.

  • Does Rislone contain chlorine or any chlorine like additives?

    No, Rislone does not condone or produce any engine additive products with chlorine. We are aware of other additive companies which use chlorine and it shows to reduce wear in laboratory testing, but can do damage to engine bearings and other components in real world testing.

  • How long does it take to start working?

    Rislone Engine Treatment Concentrate starts working the minute you install and start driving the vehicle to help remove harmful gum, sludge, and deposits from your engine.

  • I accidently added the Rislone Engine Treatment into my gas tank, what should I do?

    Rislone Engine Treatment is only designed to be added to the engine crankcase. If the product is installed in the gas tank, the tank should be removed and cleaned out by a professional mechanic.

Welcome to the Legendary “Engine Tune-Up in a Bottle”

When you hear the term “engine tune-up,” you might automatically think this means an expensive procedure that only a mechanic can perform. At Rislone, we let our advanced scientific formulas do a lot of the hard work. With the simple addition of a quality engine treatment, our “engine tune-up in a bottle” can clean out your engine and give you fast and easy improvements in terms of power, economy and longevity.

For nearly 100 years, we’ve been working hard to create powerful, efficient aftermarket chemicals that make a real difference from the first application. In the case of our engine treatments, we have created a product that sludge and debris that has been building up for years inside your engine.

The main moving parts of your engine move so fast and reach such high temperatures that they stay clean. But some of the oil passages and galleries that see lower flow can get covered with thick grease and oil sludge. We have formulated our concentrated engine treatment to work in several ways:

  • Clean: Heat and friction can cause oil to get thick and “bake” (also called coking) on the inside surfaces of your engine. Without a way to get in to clean, this oil builds up over time, causing power, fuel economy and emissions problems. Our powerful detergent package detaches old oil deposits and cleans your engine from the inside.
  • Remove: It’s not enough to simply detach the oil and grease from engine surfaces. You also need to get it out. Once again, our engine treatments have been designed to break the deposited oil down so it can exit your engine, improving performance, mileage and reliability.
  • Protect: The final step with our engine treatment products is to leave clean internal engine surfaces that discourage oil and grease buildup. You’ll get many more miles of reliable, high-performance use out of your engine with just a few applications of our “tune-up in a bottle.”

Before you take your car in for a costly tune-up from a mechanic, try our Rislone engine treatment. It’s won dozens of industry awards, and it’s been improved through the years as engine designs have changed. Our effective and affordable engine treatment products have been proven to work over the years by millions of customers and will give you the same results. Use

our online locator to find the store nearest you

that carries our “tune-up in a bottle” and give your engine a boost unlike any other on the market.

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: 4102
Dosage: In passenger car and light truck engines, use one bottle for a 4 to 6 quart system. For larger systems, stationary engines and diesel trucks, use 1 bottle for every 5 quarts of oil capacity.
Size: 16.9 fl oz. (500 mL)

Leave a Review

  • “Used this on my 2006 Durango 4.7, 105k miles, was told about this product after an oil change added RISLONE. WOW felt the restored power after a few days!!!”

    Mike - LA, California
  • “I used to use Rislone regular engine treatment (the stuff is a legend), but this came out and it's concentrated so it's easier to top off between oil changes (I can use less of it for the same results). If you know how good Rislone's engine treatment is then this is the same thing, only concentrated and IMHO easier to use because you can use less of it and don't need to do it at an oil change.”

    P. Allan - Kansas City, MO
  • “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
  • “I have been using Rislone products in all my vehicles for over 30 years. My father always used it on his cars as well.

    I believe in the product and the claims made by Rislone. I regularly maintenance my vehicles and have never had an issue with noise, smoking, or loss of performance.

    Great product!”

    Tim Parker - Riverside, CA
  • “Rislone Concentrate really works! I once went over 7000 miles before an oil change thinking synthetic oil could go that long. I was wrong, consequently left with so much sludge in my Yukon Denali 6.2 engine that during the last oil change I had to use a long screwdriver in the oil drain to keep the oil coming out...

    Rislone to the rescue...two oil changes later the sludge has been coming out so much that it's amazing that my UBER taxi still works. Now each oil change I use 1 bottle of concentrate. The oil is coming out on its own now. The tick is gone as well.”

    John K. - Tinley Park, IL
  • “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
  • “1966 Buick Skylark 310 cid V8 with 30,000 on rebuild. Had 2 or 3 hydraulic lifters begin to inflate slowly, eventually not at all. Loud tick from several at start up and would continue. Added one can of Rislone treatment concentrate, had wife start car as I videoed results. 20 to 30 seconds after start-up engine ticks were gone and entire valvetrain quieted. Sounded like a sewing machine. THANKS Rislone for saving me from breaking into a fairly fresh engine!!!!!”

    Jason Y. - Tulsa, OK
  • “Added to my Mazda CX-7 and wow picked up 1 mile more per gallon.

    Added Rislone's complete fuel system treatment and gained another 2 mpg.

    Good stuff!”

    GP - Tampa, FL
  • “I have a 2008 Chevy Malibu Classic with 142,289 miles on it (now). The lifters started tapping in 2014 and became progressively louder or so it seemed to me. Friends and 2 different mechanics said I would need to replace all of them (the lifters). Other people said just drive the car until it dies and that is what I was going to do. After driving it for 2 years with the tapping noise I talked to my neighbor who suggested Rislone. Also another friend that moved back into the area ran a diagnostic test and said the car needed a new mass air flow sensor as well as new lifters. I put a whole bottle of Rislone in and drove it appx. 2,500 miles. I then had the oil/filter change and after that replaced the mass air flow sensor and now my car runs like it used to. Quiet and smooth with good acceleration. For me it was a miracle. Now I've added Rislone for maintenance and will never be without it. I want this car to last me another 100,000 miles if possible. I have owned 2 brand new vehicles and just do not want another car payment right now. I am so thankful for your product.”

    Jan - Clermont, Florida
  • “My Chrysler 300 knocked and tapped like a big dog when cold. I put this in and on my next start up I could not hear car run. Only been 1 day but I am impressed.”

    Jim W. - Canton, Ohio