What do you do to winterize your drag car?

I put antifreeze in the cooling system and cycle the water pump for a minute or two.

I pump up the tires and put the car on the lift to keep the load off of the suspension.

I fill the cell with e85 so not to give room for moisture.

I take the vent hose off of the fuel cell and screw a cap on it to keep moisture out.

I treat the e85 with Lucas ethanol lubricant/treatment.

I crank the car every one to two weeks and let it run up to 190 degrees to keep the valve springs moving and not sitting in one place for long periods of time.
when I'm done letting it run, I recharge the batteries and refill the cell.

I get started with oil changes, trans fluid, and gear oil changes about 2 weeks before the first test and tune. I also check valve lash, and flush the antifreeze out of the cooling system at this time as well.

Some may think I'm crazy for leaving the E85 in the car all winter long. However, during the season this year, I kept a close eye on my oil and checked inside the fuel bowls of the carb for any signs of moisture, gunk, or corrosion. I found none, and have come to this conclusion. E85 will give no trouble as long as you don't let it sit for weeks at a time, you treat it with a lube like the Lucas or Marvel Mystery Oil, and you get the engine up to temp before cutting it off.

I have been around Methanol cars. My racing partner runs a methanol Camaro. I know what it will do if you do not drain and flush the fuel system when the car will sit for a while. E85 is not like that at all in my opinion.