How Often Should You Wash Your Car in BC?

The short answer: every two weeks. The honest answer: it depends on the season, where you park, and whether your paint has wax on it. Here is how the Lower Mainland actually treats your car, month by month thinking included.

Rain Does Not Wash Your Car

This is the most common belief we hear at driveways in Surrey and Delta, and it is backwards. Rainwater carries dust and minerals. When it dries on paint, it leaves water spots and a dull film. A car that has sat through a month of rain is usually dirtier, not cleaner, than one washed two weeks ago and garaged.

The Two-Week Rule

For a daily driver parked outside, a proper hand wash every two weeks keeps road film, brake dust and bird droppings from bonding to the clear coat. Bird droppings and bug splatter are the urgent cases: both are acidic and can etch paint in days during warm weather. Rinse them off the same day if you can.

• Fall and winter: wash every two weeks at minimum. Road brine and salt spray coat the lower panels and wheels, and they keep corroding until rinsed off.
• Spring: pollen and tree sap season. Sap hardens fast in sun. Watch for it if you park under trees in New Westminster or North Delta.
• Summer: bugs, dust and UV. A wash every two to three weeks is fine if the car carries wax or sealant.

Waxed Paint Forgives More

Wax and sealant do not just add shine. They make the surface slick, so dirt rinses off easier and spots form slower. An unwaxed car washed monthly will look worse than a waxed car washed every three weeks. If you stretch wash intervals, protection is what makes it safe. Our waxing guide covers how long each type lasts.

Signs You Are Overdue

Run a clean finger along the lower door after rain. If it comes away grey, the film has built up. White wheels turned brown, a rough feeling when you slide your hand over the hood, and water that sheets flat instead of beading all mean the same thing: book the wash before the next rain bakes it on.