I like using TC-W3 with my fuel. Also have got my father using it in the older 70's JD tractors and other OPE.
I bought a 6-pack of these 8oz bottles from AutoGeek.com and used 1oz measuring cups to fill the bottles up, then marked at each OZ -- my measurements might not be 100% accurate but IMO close enough. First couple I filled with ST TC-W3 then this time around I bought a gallon of Evinrude Mineral TC-W3. While they both come out to about $.15 per oz, the Evinrude is worth it since the same pop top from the bottles fits the gallon and makes is easier to fill the bottles.
The tops seal tight, but I wouldn't recommend putting them on their side. I keep about 5 bottles in a cardboard box in my trunk. When dispensing, after fuel up, I pop the top and squeeze the amount I need into the tank. Tip to a spill-free and no-mess dispensing is to un-squeeze the bottle when finished so the bottle sucks air back in which will in turn suck any oil in or at the end of the nozzle back in. Turn it right side up and you'll have no mess. Make sense? Or did I just start rambling?
...Off to eat ham dinner at the in-laws, have a nice Sunday.

I bought a 6-pack of these 8oz bottles from AutoGeek.com and used 1oz measuring cups to fill the bottles up, then marked at each OZ -- my measurements might not be 100% accurate but IMO close enough. First couple I filled with ST TC-W3 then this time around I bought a gallon of Evinrude Mineral TC-W3. While they both come out to about $.15 per oz, the Evinrude is worth it since the same pop top from the bottles fits the gallon and makes is easier to fill the bottles.
The tops seal tight, but I wouldn't recommend putting them on their side. I keep about 5 bottles in a cardboard box in my trunk. When dispensing, after fuel up, I pop the top and squeeze the amount I need into the tank. Tip to a spill-free and no-mess dispensing is to un-squeeze the bottle when finished so the bottle sucks air back in which will in turn suck any oil in or at the end of the nozzle back in. Turn it right side up and you'll have no mess. Make sense? Or did I just start rambling?
...Off to eat ham dinner at the in-laws, have a nice Sunday.
