Rislone 4102 Xtreme LUBE® Maximum Performance Engine Treatment, 16.9 oz, 5-Pack

Does everything it says it does ! Oil smelled sour before now stays clean and smells fresh after 2000 miles . Engine much quieter the instant I poured it in while it was running . Super smooth. High rislone quality like always

Works great, helps keep the engine clean. Used 1/2 will new oil change, added the other 1/2 a week before the next change ( the oil that was drained was pretty dark)

good product

Purchased for an older auto engine to help it perform better and use less oil. It appears to be working some.

I have owned a total of six cars, all purchased new, since 1975. I have rarely found that any additive is worth buying. My current car is a 2016 Subaru WRX Base trim line. It has 72,500 miles, which averages to about 9,000 miles per year. Over the last three years or so, I noticed a ticking sound out of the engine and I could feel a slight vibration in the steering wheel when sitting idle. So, for the first time in years, I started looking to see if there was an additive that could treat this. I had to be careful because this car uses synthetic oil and I didn't want to void any warranties. I found that the Rislone checked both those boxes and the reviews seemed very positive. I purchased this in June 2024, but didn't get around to trying it until last week, when I had an oil change. I am truly amazed. Within a week, the engine quieted down and I feel no vibration in the steering wheel. I haven't monitored the gas mileage yet, but even if it didn't increase, the change in noise and vibration made the Rislone a great purchase. I unconditionally recommend this product. It worked like magic.

Great product reliable does what it says have used for years

Sounds the same to me still hear noisy lifters.

I have used this stuff since the 1970s. From my experience, oil does not prevent sludge buildup - even with 3k to 5k change intervals. I think that Rislone is cheap insurance for a long lasting, internally clean engine. I am driving a pentastar now-and I DO NOT want the pentastar tick! (Rockers)

جيد لكن ماراح اشتريه مره ثانيه و ماله تأثير واضح

I have a Engine Tick and this stuff is Keeping my Engine Running good I will be using every oil Change and the price you can't beat very happy .

It is a very good product, a little pricey but it’s a personal choice like any product

Good and good product for 8 cylinder car machine

Best product to quiet noisy lifters. Worked in minute's. Will be buying it for all my oil changes.