Use up all the gas (last bit of gas I pour a shot of fuel stabilizer in the tank). Then I normally use fogging spray in the cylinder.
I use blue Marine Stabil all 4 cycle year long in E0 gas. My biggest issue is mice making nests in and around engine shroud.
Until recently I could say the same. But no more. My push mower recently would not start. After some troubleshooting I found it had fuel, spark & compression so what could the problem be? Long story short, turned out to be stale fuel. I used normal pump gas mixed with Stabil, which IME lasts at least a year if not longer. But not in this case.... All that being said, seldom have I ever had a fuel related issue with a piece of 4-cycle OPE. ...
What all do you do for winter storage of your lawn mower / tractor.
All I do is remove the battery and also drained the gas tank.
Quick question....what do you do about the condensation that's built up in the empty tank over the winter? Ask because you have a completely empty gas tank full of air containing water vapor. Unless you're keeping it in a warm enclosure, like heated garage, then you have the air within the tank warm and cool every day...and the cooling condenses the water vapor out of the air. Hopefully, it's not much each day, but very much a potential for water buildup in the tank over a few months. One reason more than a few people recommend filling the gas tank with fresh stabilized fuel for overwintering.
Got this from storing my boat a decades ago before most gas had ethanol in it. (Now, the ethanol just absorbs any condensation that happens and allows it to go through the combustion process without problems.)
I've changed some seasons in the fall for that reason. But i'm back to running high TBN oils so i'm not too worried.Because in theory moisture in the oil reacts with combustion byproducts and forms acids which promote corrosion, so clean oil protects better for long term storage. That's the theory, anyway.