Preventive Engine Maintenance: What Actually Matters—and What Doesn't

The services that matter most: regular oil and filter changes, coolant service, air and fuel filter replacement, and following the manufacturer's inspection schedule.

What matters less: arbitrary 'flushes' and additive packages that aren't in your vehicle's service schedule.

The best preventive maintenance is a relationship with a shop that knows your vehicle and tells you the truth about what it needs.