Summer Driving Tip: Balance Car AC Comfort and Mileage with This Speed

As summer temperatures soar across India, car air conditioners become essential for comfortable drives. However, running the AC often reduces fuel efficiency, hitting your wallet hard. Automotive experts reveal that driving at an optimal speed—around 60-80 km/h—can balance AC comfort with mileage, helping you stay cool while saving fuel.

Why AC Affects Mileage
Car air conditioners rely on the engine’s power, increasing fuel consumption. At low speeds, the engine works harder to maintain AC cooling, burning more fuel. Conversely, at very high speeds, aerodynamic drag and engine strain spike, further reducing efficiency. Experts note that the AC compressor’s load is significant, cutting mileage by up to 20% in small cars and 10-15% in larger vehicles, depending on driving conditions.

The Sweet Spot: 60-80 km/h

Studies by automotive engineers suggest that driving between 60 and 80 km/h optimizes fuel efficiency when using AC. At this moderate speed, the engine operates efficiently, minimizing the compressor’s energy draw while maintaining adequate cooling. Tests on sedans and SUVs show that this range delivers 10-15% better mileage compared to stop-and-go city driving or high-speed highway cruising above 100 km/h. For manual cars, staying in higher gears within this speed further boosts savings.

Additional Tips for Efficiency
Beyond speed, small habits enhance mileage. Keep windows closed to reduce drag, and use the AC’s recirculation mode to cool air faster. Regular maintenance, like cleaning air filters and checking refrigerant levels, ensures the AC runs efficiently. Parking in shade and using sunshades lowers cabin heat, reducing the AC’s workload. On highways, avoid excessive idling, as it wastes fuel without cooling benefits.

Drive Smart, Save More
Maintaining a steady 60-80 km/h speed transforms summer driving, blending comfort with cost-effectiveness. This speed aligns with most Indian road conditions, from urban highways to intercity routes, making it practical. By pairing this strategy with mindful AC use and vehicle care, drivers can enjoy chilled rides without the sting of frequent fuel stops, ensuring a budget-friendly and pleasant summer on the road.