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⚡️ Unlock hidden engine power and silence the knock—because your ride deserves a second wind!
Bar's Leaks Rislone 4447 Compression Repair with Ring Seal is a premium additive designed to restore lost compression in high-mileage gasoline and diesel engines. Its proprietary polymer blend fills cylinder wall imperfections, frees sticky rings, and repairs blow-by, resulting in improved engine power, smoother operation, and better fuel efficiency. Safe for all engine types and environmentally friendly, it helps vehicles pass emissions tests while extending engine life.










| ASIN | B00CGRX6RE |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #14,516 in Automotive ( See Top 100 in Automotive ) #63 in Automotive Fillers, Adhesives & Sealants |
| Brand | Bar's Leaks |
| Brand Name | Bar's Leaks |
| Compatible with Vehicle Type | Car, Truck, Motorcycle, ATV, Bus, Boat, Snowmobile, Lawn Mower, Generator, Tractor, RV, Heavy Equipment |
| Container Type | Bottle |
| Customer Reviews | 4.3 out of 5 stars 1,925 Reviews |
| Global Trade Identification Number | 00078615044474 |
| Item Weight | 159 g |
| Liquid Volume | 16.5 Fluid Ounces |
| Liquid volume | 16.5 Fluid Ounces |
| Manufacturer | Bar's Products |
| Manufacturer Part Number | 4447 |
| Model Number | 4447 |
| Number of Packs | 1 |
| Package information | Bottle |
| Size | Pack of 1 |
| UPC | 078615044474 078615444472 |
| Unit Count | 487.9632 Milliliters |
| Vehicle service type | Car, Truck, Motorcycle, ATV, Bus, Boat, Snowmobile, Lawn Mower, Generator, Tractor, RV, Heavy Equipment Vehicle service type Car, Truck, Motorcycle, ATV, Bus, Boat, Snowmobile, Lawn Mower, Generator, Tractor, RV, Heavy Equipment See more |
| Viscosity Level | Medium to High |
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