- Run the fuel tank close to empty.
- Add some gasoline stabilizer and run the truck long enough to feed the mix through the carburator.
- Change the crankcase oil. Use API "SJ" specification oil in most cases.
- Grease all chassis points per lubrication chart.
- Lube all hinges, latches, and catches that could rust up during winter.
- Inspect fuel-system components, especially rubber hoses for cracking or softness.
- Sniff for gas leaks. Do this while changing the oil and greasing the chassis.
- Check fuel-tank cap.
- Check tire pressure.
- Make sure the transmission and differential have modern lubricants. Most can take gear lube of GL5 specification. This has an excellent additive package, including anti-oxidents, which will keep gears from corroding.
- Park vehicle for winter after a long run.
- Disconnect the battery.