I don't want to take credit. I got it from the Hondashadow.net forums... since I have a Honda Shadow now. I got it on a trade, and now I'm loving the gas mileage, and easy driveability feeling. I hope I don't get killed on it... I drive cautiously. And, I try and take good care of it... so it would be a shame to waste a good Purolator Pure One and half a jug of Rotella-T 15w-40. And the Bel-Ray chain lube.