I’m surprised(shocked really) how much fuel and how little oil my Alpha uses. It’s like an inch below the neck in the giant azz heavy oil tank when I’m burning 7-8 gallons of fuel and that’s in 30 miles of hard riding, maybe 40 tops. I should have been measuring it so I’d have hard data. On my ProLite 900 it was premix and I ran it 28-1. Gotta be 2.5 times, maybe 3tines the oil I’m using now. Also I should have been premixing a little, been dumb not too.
My Doo 850 is better on gas, maybe 6 gallons when’d burn 8 on the Cat but oil consumption is way higher. 6 gallons of gas uses over half a tank filled to the neck. I’d bet there’s just a tiny bit of oil in the tank if you ran the gas close to dry.