Rislone4102 XTREME LUBE® Maximum Performance Engine Treatment, 16.9 oz.

Holy cow this stuff is a miracle in bottle! Mom's got a 5.4 Triton motor with the dreaded lifter knock. I put one bottle in and drove it up and down the interstate for about 50 miles. Let it cool and then changed the oil and put the other bottle in with the new oil change. It significantly lessened that knock from constant and very loud to only occasionally knocking when coming off and off ramp. Truly this stuff is amazing!

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.

Good price for quality.

Been using this since had lifter noise in my 88 jeep 4.0 after one oil change went away used every oil change after that and it never came back. still using in jeep 3.7 and oil look clean at 3000 mile oil changes with 290,000 on engine and never been apart great product

Amazon hidden 💎 gem very great product for the price and maintains the oil and the engine automatically 💎💯❤️🇺🇸🙏🏼🔥

have a 2005 Altima that had a little lifter noise. seems to have corrected that.

It didn’t quiet my lifters as I hoped it would.

work for your vehicle. Good price.