Gas Tank Size?

[jcw1503]

I just bought a 97 hydrasport ls205 bass boat, 20 ft. with a 200 on the back. I have to mix the oil and I dont know how big my gas tank is. Does anyone else have an idea? Thanks

[lilmule]

No but seldom does one have all the tank used up,so its just important to add oil to what gas you are actually adding ,like 6 gal 1/2 quart or 12 gal 1 quart.As you pump gas if near full each time add oil to it as you each say 6 or 12 gal,other wise you will need to put several quarts of oil in and have a full tank.
If for some reason you do fill it and have added oil previously,just squeeze the squeeze bulb,that is about 1/2 quart.
So if say 1/4 of a tank to 1/2 then use the 6 gal mix method,if over use the 12.
Most likly being a 20 ft boat its 30 gal at a min ,many are 40 and some even 50.
Yes its expensive to fill one,but one seldom runs out 40 gal of gas,,even with an older rig thats about 140 -150 miles of running.WOT less about 120-125.
I have two boats both manual mix both 200 hp one evinrude xp and one johnson venom,both use less than 12 -16 gal normally per trip.Going say 20-30 miles each way on ky lake,in fairly rough water.

[nofearengineer]

Lilmule is right. I don't mix oil, but I add Quicklean to my fuel. It's more like 1oz. per 6 gallons, so when I fuel up, I always add some multiple of 6 gallons and then use my graduated cylinder to add the right number of ounces of Quicklean.