The Red Line Big Twin 20W60HD PowerPack is a complete, pre-boxed oil-change kit for Harley-Davidson motorcycles with Evolution, Twin Cam and Milwaukee-Eight engines, combining a heavier-duty synthetic 20W-60 engine oil with primary chaincase oil and transmission oil tested together for compatibility. The 20W-60HD grade suits engines run hard or in extreme heat. Each kit includes enough fluid for a full three-hole oil change. Note: 2007-up models with 96 cubic-inch and larger Twin Cam engines may require one additional bottle of Primary Chaincase Oil; check your capacity to avoid overfilling.
| Brand | Red Line |
| Product Line | Big Twin PowerPack (Heavy-Duty) |
| Engine Oil | Synthetic 20W-60HD |
| Application | Harley-Davidson Evolution / Twin Cam / Milwaukee-Eight (severe duty) |
| Kit Contents | Engine, primary chaincase & transmission oil |
| Size | Complete oil-change kit |
