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⚙️ Keep your engine roaring like new — don’t let compression slip away!
Bar's Leaks Rislone 4447-12PK Compression Repair is a concentrated petroleum additive designed to restore and improve compression in high-mileage engines. This 12-pack bulk set targets decreased sealing between piston rings and cylinder walls, helping to reduce engine wear effects and maintain optimal performance. Ideal for proactive engine maintenance, it’s a trusted solution with a strong customer rating and proven effectiveness.
| Automotive Fit Type | Universal Fit |
| Brand | Bar's Leaks |
| Global Trade Identification Number | 10078615044471 |
| Liquid volume | 16.9 Fluid Ounces |
| Package information | Can |
| Vehicle service type | Car, Truck |
J**F
Worked for me.
My crankcase had serious blowby. Oil coming out the dipstick and the ccv lines. The engine was knocking also. After 3 bottles of this stuff it's back to running normal.
K**A
It works
It works
B**E
One bottle was open and leaked all over the box, the bottles and my porch.
Our order came and one bottle was open and leaked all over everything including my porch. I honestly thought no big deal, I can take pictures and have them send us a replacement bottle...ha... no such luck. Since we ordered the 12 pack we were told that we can not get a replacement for the bottle that leaked. I would have to return all 12 bottles! That seems ridiculous, so I am out one bottle and that just irritates me so much. I will remember this when it comes time to order again. I will not be ordering this from here ever again. So frustrating.
C**Y
Will greatly prolong life and prevent oil leaks when used properly
Engine preservation
B**.
Very good
Saved replacing my engine
Trustpilot
1 month ago
3 weeks ago