Ameer Randolph
The Toyota Prius is widely recognised as one of the most fuel-efficient cars on the market. However, there are several ways to further improve the fuel consumption of this hybrid vehicle. From selecting the best route to your destination to using the right engine air filter, this article will explore some easy ways to change the fuel consumption on the Prius.
| Characteristics | Values |
|---|---|
| Route | Few stops, optimal speed, no wind |
| Driving time | Avoid rush hour, bad weather, cold starts |
| Tyre maintenance | Check pressure, don't over-inflate |
| Fuel type | 87 octane gas or higher (2014 and 2015 models) |
| Car maintenance | Follow the recommended schedule |
| Driving habits | Maintain distance, obey speed limit, avoid stopping |
| AC usage | Avoid using AC or defrost |
| Cruise control | Only on flat roads |
| Driving modes | Glide, Super Highway, Warp Stealth |
| Braking | Glide, coast, regenerative brake, mechanical brake |
| Acceleration | Slow and steady |
| Fuel injector | Clean every 3,000 miles |
| Roof rack | Avoid using |
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What You'll Learn
Cleaning the MAF sensor
A dirty mass airflow (MAF) sensor can cause a decrease in fuel economy, so cleaning it is a good idea. The MAF sensor measures the volume of air entering the engine, and the car's computer uses this information to determine how much fuel to add or take away from the engine. When the sensor is dirty, it can yield incorrect readings, causing the engine to use more fuel than necessary.
How to Clean the MAF Sensor
The process of cleaning the MAF sensor on a Prius is relatively simple and can be done in about 10 minutes. First, locate the sensor; it is usually found in the intake just above the throttle body. There are two screws holding the sensor in place, so use a screwdriver to remove them. Next, take off the wire harness by gently twisting it side to side while pulling.
Once the sensor is removed, inspect it for any dirt or buildup on the tiny sensor wires. If there is any debris, use a MAF sensor cleaner spray to rinse it thoroughly. Allow the sensor to dry completely before reinstalling it.
After cleaning the sensor, you have two options: you can either let your Prius "relearn" from the clean sensor and observe an improvement in fuel economy over time, or you can perform a master reset. For the master reset, disconnect the 12V battery for a couple of minutes to allow the systems to wipe completely. Then, reconnect the battery and drive your Prius as usual.
By keeping the MAF sensor clean, you can help ensure that your Prius is operating with optimal fuel efficiency.
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Using the right engine air filter
The engine air filter is one of the best ways to ensure your fuel economy stays high. When choosing an engine air filter, it's best to go with an OEM from the dealer. While aftermarket filters are cheaper, they are cheaper for a reason: they use less material. This means they will get clogged more quickly and will need to be replaced more often. Aftermarket filters can also allow more airflow into the engine, which is not always a good thing.
OEM filters have enough pleats and material density to keep out dirt and allow for the correct airflow to come through. A clogged filter will restrict airflow to the engine, which can cause the car to lose power or not run at all.
You should inspect your engine air filter every oil change interval or 5,000 miles. To do this, pull the pleats apart and dump out any loose debris. Check how saturated the filter is. If there is 50% or more saturation of the pleats, replace the filter.
It's recommended that you replace your engine air filter every 10,000 miles in extreme conditions and every 15,000-30,000 miles in normal driving conditions. If you live in an area with a high pollen count or a lot of pollutants, it's a good idea to change your filters once per year.
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Maintaining proper tire inflation
Understand the Importance of Proper Tire Inflation:
- Proper tire inflation ensures even tire wear, prolonging the life of your tires.
- Correctly inflated tires provide optimal traction, enhancing handling and braking performance.
- Maintaining the recommended tire pressure can improve fuel efficiency, as underinflated tires increase rolling resistance, leading to higher fuel consumption.
Check Tire Pressure Regularly:
- Refer to the driver's door or owner's manual for the recommended tire pressure for your Prius.
- Use a reliable tire pressure gauge to check the pressure in all four tires, including the spare tire, at least once a month.
- Check tire pressure when the tires are "cold," meaning they haven't been driven for at least three hours or more than a mile.
- Don't rely solely on the TPMS (Tire Pressure Monitoring System) warning light. The TPMS warning light illuminates when the tire pressure is significantly low, but regular checks will help you maintain optimal pressure.
Adjust Tire Pressure as Needed:
- If the tire pressure is below the recommended level, inflate the tires to the specified pressure. You can do this at a gas station or with a portable air compressor.
- Be careful not to overinflate the tires. Overinflation can lead to reduced traction, uneven wear, and a less comfortable ride.
- Remember that tire pressure can fluctuate with changes in temperature. For example, a drop in temperature can cause a decrease in tire pressure.
- When checking tire pressure, also inspect the tires for any signs of damage, wear, or foreign objects embedded in the tread.
Be Mindful of Tire Pressure When Travelling:
- When travelling with a full load or towing, adjust the tire pressure according to the recommendations in the owner's manual.
- If you're travelling to a different altitude, such as driving to a mountainous region, be aware that the change in altitude can affect tire pressure.
Choose the Right Tires:
- Ensure you are using the correct tire size and type recommended by the vehicle manufacturer.
- Consider using Low Rolling Resistance (LRR) tires, which are designed to optimize fuel efficiency by reducing the amount of energy lost as the tires roll.
Don't Ignore the TPMS Warning Light:
- If the TPMS warning light illuminates, stop in a safe area as soon as possible and check the tire pressure.
- A blinking TPMS light usually indicates a malfunction with the TPMS system, while a steady light typically signals low tire pressure.
- If the TPMS light comes on, don't ignore it. Driving with underinflated tires can be dangerous and can lead to increased tire wear and fuel consumption.
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$5.49
Using the right fuel
Use the Recommended Fuel Type
Firstly, it is crucial to use the recommended type of fuel for your Prius. Using the wrong fuel can negatively impact fuel efficiency and engine performance. For the 2014 and 2015 models, Toyota recommends using an 87 octane gas or higher.
Fuel Additives
While not strictly related to the type of fuel, using fuel additives can help maintain your Prius' fuel system and improve fuel economy. Fuel additives such as Chevron's Techron Fuel System Cleaner and BG Products 44k Fuel System Treatment are popular choices among Prius owners.
Avoid Aftermarket Fuels
When it comes to engine air filters, it is recommended to use OEM (Original Equipment Manufacturer) filters from authorised dealers. Aftermarket filters are often cheaper but use less material, meaning they can get clogged more quickly and may need to be replaced more often. Additionally, they can allow more airflow into the engine, which can lead to decreased fuel economy in modern cars.
Fuel Injector Maintenance
It is important to regularly clean your fuel injectors and ensure they are properly maintained. Fuel injectors play a crucial role in delivering fuel to the engine, and any issues with them can impact fuel efficiency. However, it is advised to leave fuel injector maintenance to trained professionals, as they involve working with the fuel system.
Regular Maintenance
Finally, maintaining your Prius according to the recommended schedule in your owner's manual is essential for optimal fuel economy. Regular maintenance can help identify and address any issues that may impact fuel efficiency, such as dirty sensors or incorrect tyre pressure.
By following these tips and using the right fuel, you can help ensure your Prius runs efficiently and achieves the best possible fuel economy.
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Using the glide mode
Glide mode is a feature of the Toyota Prius that allows you to save fuel by cutting fuel consumption. It is most effective when driving at speeds between 40-45 mph. To use the glide mode, follow these steps:
- Place the key fob into the ignition and press the brake pedal.
- Push the "Power" button to start the car.
- Accelerate to at least 40 mph.
- Take your foot off the accelerator. You should see arrows on the Energy Optimization system display pointing from the tires to the hybrid battery, indicating regenerative braking.
- Press the accelerator slightly to keep the car moving forward.
- All of the arrows should now disappear, indicating that you are in Glide mode.
- Continue gliding until you reach 30 mph. Do not accelerate during this time.
- Accelerate back to your desired speed when finished gliding.
Note that different models of the Prius may have slightly different displays, so make sure to familiarize yourself with the Energy Optimization system before attempting to use Glide mode. Additionally, when using Glide mode, always be mindful of other vehicles and maintain a safe distance.
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Frequently asked questions
The MAF, or mass air flow sensor, can be cleaned using a CRC MAF sensor cleaner. First, remove the two screws holding the sensor in place and take off the wire harness. Then, gently twist the sensor side to side and pull it out. After cleaning the sensor, you can either let your Prius "relearn" or perform a master reset by disconnecting the 12v battery for a few minutes.
It is recommended to use an OEM (Original Equipment Manufacturer) engine air filter from the dealer. Aftermarket filters are cheaper but may need to be replaced more frequently and can allow more airflow, which can contribute to poor fuel economy.
It is recommended to change your oil every 5000 miles and your air filter every 30,000 miles.
There are several strategies to improve fuel economy, including choosing routes with fewer stops and optimal speeds (40-45 mph), avoiding rush hour and bad weather, maintaining proper tire pressure, using the recommended type of fuel, and developing good driving habits such as maintaining a safe distance and obeying speed limits.
To enter Glide mode, drive your Prius at a speed of at least 40 MPH, then take your foot off the accelerator. The arrows on the Energy Optimization system display will show the power flow going from the tires to the hybrid battery, indicating regenerative braking. Press the accelerator slightly to keep the car moving forward.
