Flush Your Coolant System Every 30,000 Miles

The Problem

Coolant that's been in the system for 5+ years causes internal corrosion, clogs, and overheating.

The Hack

Get a coolant system flush every 30,000 miles or 3-5 years (check your manual). The shop drains old coolant, flushes the system, and fills with fresh 50/50 mix. Costs $80-120.

Why It Works

Coolant contains anti-corrosion additives that deplete over time. Depleted coolant allows rust and scale buildup inside the radiator, heater core, and engine water jacket — leading to expensive clogs and failures.

Pro Tips

• $80-120 flush vs $1,000-2,000 in cooling system repairs
• Check your owner's manual for the specific interval
• Coolant color indicates type — don't mix different types
• This is one of the most overlooked maintenance items