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🏍️ Power Your Ride with Precision and Protection!
Red Line RED42504 is a premium 20W-50 motorcycle oil engineered for high-revving Big-Twin engines including Evolution and Twin Cam models. It features enhanced anti-wear chemistry with zinc and phosphorus, heat-resistant viscosity for extreme conditions, and friction modifiers that optimize wet-clutch performance, making it the go-to choice for riders demanding superior engine protection and smooth operation.













































| ASIN | B003TQ3JQ4 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #62,828 in Automotive ( See Top 100 in Automotive ) #3 in Motorbike Gear Oil |
| Brand Name | Red Line |
| Compatible with Vehicle Type | Motorcycle |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (605) |
| Global Trade Identification Number | 00083522425049 |
| Item Weight | 2 Pounds |
| Liquid Volume | 1 Quarts |
| Manufacturer | Red Line |
| Manufacturer Part Number | 42504 |
| Model Number | RED42504 |
| SAE J300 Viscosity Grade | 20W-50 |
| UPC | 083522425049 |
| Unit Count | 32.0 Ounce |
| Viscosity Level | Medium to High |
S**N
As advertised
D**1
huile pour ma mt 01 , réduit fortement le bruit moteur , huile de très bonne qualité , un peu cher , je la recommande
C**I
Great
M**N
I started changing my own oil a few years back and tried Red Line for no other reason than the reviews. I have 2 bikes with 103s and an older 88. This oil is amazing compared to the garbage HD uses. You will literally hear and feel your motor run better and quieter. No more clunking or lagging with the throttle. It seems to run so much cooler and smoother. You will not be unhappy with this oil. As a side note, I also use Red Line Primare oil and gear oil and notice a huge difference with them as well. Red Line for all 3 holes.
A**R
Satisfaction
Trustpilot
3 weeks ago
3 days ago