A realistic schedule
- Every 2–4 weeks: normal use, mild weather.
- Weekly/fortnightly in winter: salt + grime build up fast.
- After long motorway trips: bug splatter and film can bake on.
When to wash sooner
- Bird mess or tree sap (remove quickly).
- Heavy road salt periods.
- After muddy conditions (don't let grit sit in seams).
Use the site's local verdict to grab a good window — you'll spend less time fighting streaks and re-wetting.
