OBD Diagnostics for Engine Friction and Mechanical Efficiency

As engines age, internal friction increases, reducing performance and efficiency. OBD engine friction diagnostics help detect these changes before major damage occurs.

What Causes Engine Friction

Common Sources

• Worn piston rings

• Bearing wear

• Thickened engine oil

• Carbon buildup

How OBD Identifies Friction Trends

Key Indicators

• Increased engine load at idle

• Reduced acceleration efficiency

• Higher fuel consumption

• Temperature rise under normal load

Indirect Detection

While friction isn’t measured directly, patterns reveal inefficiencies.

Benefits of Monitoring Mechanical Efficiency

• Early wear detection

• Optimized maintenance schedules

• Improved fuel economy

• Extended engine life

Conclusion

OBD diagnostics provide valuable insight into gradual mechanical efficiency loss.