Bikers Choice Oil Change-In-A-Box - 20W50 41-0697 Everything needed for an oil change Sportster kits include 1 gallon 20W50 Twin Power oil, 1 quart of Twin Power Sportlube and 1 Twin Power chrome oil filter Big Twin and Dyna kits have 1 gallon of 20W50 Twin Power oil, 1 quart of Twin Power primary fluid, 1 quart of Twin Power semi-synthetic transmission fluid and 1 Twin Power chrome oil filter