How to prepare for winter storage?

Good to know. Are you sure or is it here say??? I have used tenders for several years now with no problem. They have even added two years life to a battery that wouldn't start anything a week after being charged.
Yote
Fog it, hang the suspension, remove the battery and keep the battery charged. Or not. If it was me i would start it twice a month, let it come up to operating temperature, engage the transmission, pump the brakes, hell drive it if you can, that would be best.
EDIT: sorry, wrong quote and ALWAYS use non ethanol fuel