If you own an SUV like a Toyota Harrier, Subaru Forester, Mazda CX-5, or even a Land Cruiser V8, you know how important a working air conditioner is, especially in Kenya’s heat. The AC doesn’t just cool the car; it also affects your fuel consumption, engine performance, and even long-term maintenance. 

Here’s everything you need to know about using your vehicle’s air conditioner wisely, staying cool, and avoiding unnecessary fuel and repair costs. 

How the AC System Works   

Your car’s air conditioner works by circulating a refrigerant gas through a closed loop. The compressor (powered by the engine) compresses the gas into a liquid, which cools down as it passes through the evaporator coils. A fan then blows this cooled air into your cabin.

When the AC is on, your engine works harder, especially in larger SUVs. That extra strain can increase fuel consumption and affect engine load if not properly utilized. 

Does AC Use More Fuel?   

Yes. The AC can increase your fuel consumption by anywhere from 5% to 15%, depending on: 

• The size of your engine (larger SUVs burn more fuel) 
• How long you run the AC
• Whether you're driving at high speed or stuck in traffic 

For example, a Toyota Prado 2.8L diesel or a Range Rover Sport will use noticeably more fuel with the AC running ,  especially during stop-and-go city driving.   

When It’s Best to Use the AC  

• On the Highway : At speeds above 80km/h, driving with the windows down creates drag (air resistance  that pushes against your car as it moves forward), which increases fuel use. In this case, using the AC is actually more efficient. 
• After Parking in the Sun : Before turning on the AC, roll down your windows and drive for a minute or two. This allows the hot air to escape and helps your AC cool the cabin faster without working as hard. 
• On Long Trips: If you’re heading out of town in a CX-5, Harrier, or Vanguard, running the AC moderately keeps passengers comfortable and alert without spiking fuel use. 

Here’s When to Avoid or Minimize AC Use  

• In City Traffic or Short Trips: In slow-moving traffic, especially in large SUVs, the engine works harder to power the AC. Open windows or use the fan setting instead when possible. 
• Cooler Mornings or Evenings: If the temperature is already low, skip the AC and enjoy natural airflow. This reduces engine load and saves fuel.  
• Low Fuel Situations: If you're nearly out of fuel, turning off the AC reduces the strain on your engine and can help you go a few extra kilometers. 

Here are some tips to maintain your AC   

• Get it serviced regularly: Every 10,000–15,000 km or once a year. 
• Clean or replace cabin air filters to keep airflow strong and clean. 
• Check refrigerant levels: Low gas means weak cooling and overworking the system. 
• Watch for signs of trouble: Unusual smells, reduced airflow, or strange noises can indicate a failing compressor or mould build-up.           

Proper maintenance keeps your system efficient, prevents long-term damage, and keeps you cool without draining your fuel tank.  

Avoid these common mistakes when using your AC   

•   Blasting AC on max constantly: It’s better to cool the car, then switch to a moderate setting. 
• Skipping annual servicing: AC problems are much cheaper to fix early.
•   Ignoring weak airflow: Often caused by dirty filters or low refrigerant. 
• Never use fresh air mode: Use it occasionally to prevent air from getting stale.

Your AC is one of your car’s most-used features, especially in Kenya’s hot climate. Used correctly, it makes every ride comfortable without hiking your fuel bills. 

At Zorro Car Imports, we help you source your dream car, drive smarter, and maintain it well. Whether you’re buying your first SUV or upgrading to a luxury model, we’ll guide you every step of the way. 

Thinking of upgrading your ride? Talk to our team at Zorro today and get matched with the perfect SUV that is fuel-efficient, powerful, and fully equipped.