How Often Should I Wash My Car?

Washing your car is more than just keeping it clean—it’s essential for protecting your paint, improving visibility, and preserving value. But how often should you actually wash it?

At St Auto Care, we specialise in premium paint correction and protection, and we know that proper washing frequency can make a big difference in your vehicle’s long-term condition. Let’s break down what you need to know.

Why Regular Car Washing Matters

Many drivers underestimate the damage that dirt, dust, road grime, and bird droppings can do to your car. Left untreated, these contaminants can:

• Etch into your clear coat

• Cause paint oxidation and fading

• Accelerate rust formation (especially in coastal areas)

• Dull your vehicle’s shine

Regular washing isn’t just cosmetic—it’s preventative care.

How Often Should You Wash Your Car?

The ideal washing schedule depends on several factors, including your location, driving habits, and paint protection setup (like ceramic coating). Here's a breakdown:

General Rule: Every 2 Weeks

For most drivers, washing your car once every 2 weeks keeps it free from harmful contaminants and maintains shine.

How Environment Affects Washing Frequency

Rainy or Coastal Areas: Wash weekly, as rainwater mixed with pollutants can damage your paint, and salty air can speed up corrosion.

High Sun Exposure (like Australia): UV rays + dust = dull, damaged paint. Weekly or biweekly washing is essential to prevent oxidation.

City Driving: Urban environments mean more pollution, road grime, and contaminants. Aim for every 2 weeks.

Off-Road or Rural Driving: Mud and debris can scratch the paint if left too long. Wash immediately after off-road trips, then resume your regular schedule.

How Often to Wash If You Have Paint Protection

Ceramic Coating: 

Washing every 2–3 weeks is ideal to maintain the hydrophobic layer and reduce buildup. Always use safe wash methods to avoid swirl marks.

No Protection Yet? You should wash every 1–2 weeks, and consider booking a paint correction + coating to reduce long-term paint wear.

Hand Washing vs Automatic Car Washes We always recommend hand washing (or professional detailing) over automatic washes, which often cause swirl marks and fine scratches.St Auto Care offers both in-studio and mobile paint-safe washing and detailing services for convenience without compromise.

When to Wash Immediately

No matter your schedule, wash your car as soon as possible if you notice:

• Bird droppings

• Tree sap

• Bug splatter

• Fuel stains

• Road salt buildup

These can permanently damage your paint if left untreated.

For Premium Car Care on the Mornington Peninsula– Book with ST Auto Care

Whether you’re looking for a regular maintenance wash, a deep paint correction, or long-term protection like ceramic coating, St Auto Care delivers professional service with premium results.

📞 Call us at 0493 402 073🌐 Book online at www.stautocare.com📍 Serving Rye & The Southern Mornington Peninsula area