Winterization checklist for cold storage

1. Stabilize fuel. Fill to 3/4, add marine stabilizer, run 3–5 minutes on the hose so it reaches injectors.
2. Flush + fog. Flush per manual, then fog cylinders if your manual calls for it. Don't skip the intercooler drain on supercharged models.
3. Change oil (4-stroke). Old oil holds acids. Change filter too; log hours.
4. Battery out. Remove, clean terminals, store on a maintainer — not on concrete lore, just somewhere dry and charged monthly.
5. Dry everything. Remove drain plugs for storage, tilt trailer nose-up, pull mats, crack the seat, add moisture absorber.
6. Cover + critters. Breathable cover, exhaust and intake taped with a reminder tag, steel wool in the trailer exhaust tip only if mice are an issue.

Label every plug you pull with painter's tape. Spring-you will forget.

Next: spring recommission in 10 minutes.