






🛵 Ride Bold, Ride Protected — The Synthetic Edge Your Engine Deserves!
Red Line42504 is a premium 20W50 full-synthetic motorcycle oil designed specifically for modern Big-Twin engines like Milwaukee-Eight, Evolution, and Twin Cam. Featuring ester base stocks and 2200 ppm ZDDP, it delivers superior antiwear protection and optimal friction characteristics for wet-clutch compatibility. Trusted since 1979, this quart-sized oil ensures high-temperature stability and universal fit for sport motorcycles and ATVs, making it the go-to choice for riders who demand peak engine performance and longevity.






| Viscosity | 20W-50 |
| Brand | Red Line |
| Vehicle Service Type | ATV, Sport Motorcycle |
| UPC | 083522425049 |
| Automotive Fit Type | Universal Fit |
| Global Trade Identification Number | 00083522425049 |
| Manufacturer | Red Line |
| Size | Quart |
| Model | 42504 |
| Item Weight | 1.26 pounds |
| Product Dimensions | 4.5 x 3.5 x 9 inches |
| Item model number | RED42504 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 42504 |
| OEM Part Number | 42504 |
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