Transmission Fluid: lifespan, maintenance and replacement

Typical lifespan: 30,000–60,000 miles.

Maintenance schedule

• Check fluid level and condition — Every 6 months
• Replace transmission fluid (manual) — Every 30,000–60,000 miles
• Replace transmission fluid (auto) — Every 60,000–100,000 miles

Signs it needs replacing

• Slipping or delayed gear shifts
• Grinding or shaking when shifting
• Fluid appears dark or smells burnt
• Transmission overheating

Tips

Use the exact fluid type specified for your transmission. Wrong fluid can cause serious damage.