Mercury Pt # 13019 30 Auto-blend Oil System 1980-2015 30-75hp's on 2040-parts.com

I thought these were a thing from the past but, they still use um today, have been since 1980 on 30 thru 75's, 250 & 300's as well.............My guess is there's some exceptions to the rule but, a little homework will clue You in...............It's got the bayonet style connector on the tank end and the latest and greatest on the motor end. The bottle has a blue tint to it but, there's no oil in it, fuel lines are empty as well although, it does have a faint odor of varnish................Being an old VRO Man, I figured this thing was probably worth a couple hundred when it was new but, I was mistaken, $520.80, this particular one is NLA but the newer style 13019 31 is only $458.20, a real bargain!! This one is used and, I have no need to get a billion dollars.............