The Real Oil Change
Boys, there ain't no crankcase sump on a big twin. Never has been. It's known as a dry sump system and the oil is stored in a reservoir seperate from the motor. It is then pumped to the motor.
I've drained the motor seperate from the oil tank and have never gotten more than 4-6 oz. of oil. That's all that remains in the motor when you only drain the tank. The clown that posted originally (and he's posted more than once, same post) claiming he got 61 oz. of oil from his crankcase is full of excrement to his eyes. Also, if you want to run ATF in your motor be my guest - NOT something I'm ever going to do.
Motor oil in the motor, gear lube in the tranny, and ATF in the primary. Works every time.
CN
Instead of buying the Scavenger System, would this work:
When you're ready to change your oil, warm up your bike, then remove the drain plug and drain the oil. Leaving the old filter on, fill the tank with fresh clean oil. Remove the oil return line from the tank and place a hose on the end of the oil return line, then place the other end of the hose in a container to catch the used oil. Start your bike and flush the remainder of the used oil, until clean oil starts to flow out the hose. The last thing to do is exchange the filter with a clean filter. Then ride your bike!
The Best of Harley-Davidson for Lifelong Riders







