Top 6 Causes Of Decreased Fuel Efficiency

Top 6 Causes Of Decreased Fuel Efficiency

09.08.2022: When you bought your vehicle, one of its attractive points was its fuel efficiency because this could save you some money at the pump. However, you realize that recently you’ve been spending more on fuel than before. For instance, your initial miles per g


When you bought your vehicle, one of its attractive points was its fuel efficiency because this could save you some money at the pump. However, you realize that recently you’ve been spending more on fuel than before. For instance, your initial miles per gallon (MPG) was 30, but it has now gone down to 20 MPG.



You might figure there should be a great explanation for this significant drop, and you’re right. There are various reasons why your vehicle’s fuel efficiency isn’t what it was. Sometimes, these reasons may require a complete vehicle diagnosis at your auto shop. However, some can be within your control as a driver. Continue reading to find out what can cause a reduction in your car’s fuel efficiency.





1. Bad Or Clogged Fuel Filter And Fuel Injector


The best combustion depends on the fuel injector’s precision. The fuel injector sends a precise fuel spray into the engine cylinders at defined intervals, ensuring consistent and complete fuel combustion and improving fuel efficiency.



However, if the injector valves are clogged, damaged, or dirty, the pressure might not be enough to obtain optimum combustion. In addition, the injector may not send the right amount of fuel to the engine. Lack of optimum combustion can mean the engine may use more fuel to attain desired power output. Thus, your car will need to consume more in the process.  



Besides, clogged fuel filters reduce fuel pressure in the injectors. This means it ultimately affects the efficiency of the fuel injectors. The resultant product of this chain is your engine’s poor fuel performance and an increase in fuel consumption.



Some cases require cleaning fuel injectors and filters to clear the valves and nozzles. However, it would be best to replace them if they’re damaged. Your local auto shop can help you with the diagnosis and advise on the correct steps you should take.





2. Wrong Tire Pressure


In most cases, poor fuel efficiency can be due to low tire pressure because underinflated tires increase the tires’ contact with the road. This significantly increases their rolling resistance, requiring more power to push the vehicle forward.



Therefore, it would be best to regularly check the tire pressure to ensure they aren’t too low.
Most manufacturers indicate the recommended tire pressure on an inside panel on the driver’s door. The figures there will give you the correct guide. It’s crucial to note that you should use the manufacturer’s recommendations and not the figures indicated on the tires.






3. Poor Wheel Alignment



You might realize that sometimes, the car doesn’t track in a straight line when you loosely hold the steering wheel. Hence, there is a need to correct its direction constantly. As with the tire pressure, this creates a rolling resistance, increasing your car’s fuel consumption.



However, wheel alignment is a readily available service in most auto shops, so you can take your vehicle for diagnosis to correct this problem.





4. Old Or Dirty Air Filters



Your vehicle’s engine requires clean air to ensure optimum fuel combustion. So, the engine may not get the maximum air necessary for complete combustion if the air filters are clogged.


The engine may also compensate by taking more fuel to attain the desired power, significantly increasing your car’s overall fuel consumption. That’s why it’s essential to inspect your air filters regularly and replace them when they seem too dirty.






5. Poor Driving Habits



Revving your engine constantly may sound like a rockstar move. However, it can come at a cost to you at the fuel pump. This is because the more you rev your engine, the more fuel it uses. Additionally, your acceleration process also matters. If you’re a driver who loves hard acceleration, the engine will always take in more fuel to give you the power you need.



Therefore, even though it may seem satisfying to accelerate and rev aggressively, your car will always consume more fuel than you expect. If you’re taking off from a low speed or standing position, it would be best to let the car pick up speed gradually. This can significantly help maintain the vehicle’s fuel efficiency.




6. Wrong Engine Oil


Engine oil helps protect and lubricate the engine, ensuring it operates at its optimum fuel efficiency. There are various engine oil types available in the market. However, this doesn’t mean you can use any of them as you wish. The reason is that they have different viscosity properties and react to temperature changes differently. Although they help lubricate, they have different friction reduction levels.



For instance, high-mileage oil is considered less effective than synthetic oil. So, if you use the high-mileage one, your engine may still experience significant resistance, using more fuel to produce the necessary power. Ultimately, this increases your fuel consumption. Therefore, following the manufacturer’s manual on the correct oil would be best for optimum engine performance.






Conclusion


One or more causes can decrease your vehicle’s fuel efficiency. Hence, constant car inspection is a must-do for every vehicle owner, or take it to your local auto shop for a thorough diagnosis when necessary. Furthermore, you should ensure your driving habits don’t affect the vehicle’s fuel efficiency.





AdobeStock, 205173454, 288539226



Permanent-URL: http://www.automobilsport.com/top-6-causes-of-decreased-fuel-efficiency---241163.html

09.08.2022 / MaP

More News

KTM X-Bow GT-XR, a super sportscar like no other
03.08.2022
  “Ready to Race” isn’t simply a slogan at KTM, it’s the very DNA of the Austrian manufacturer. It defines the approach to new projects and the motivation behind them. It’s the vision for developing, testing and producing cars to win race more >>
Hagerty announces 3-year exclusive partnership with VSCC
03.08.2022
    Hagerty becomes exclusive insurance partner of The Vintage Sports Car Club Limited (VSCC) in a 3-year deal to provide mutual member benefits and insurance policy incentives    The VSCC established in 1934 to provide an arena for people to enjoy pre-war and historic cars and is one of the largest motoring clubs in the world more >>
World of Top Gear refreshed for summer at Beaulieu
03.08.2022
World of Top Gear, home to the cars created for the nation’s favourite motoring TV show, has reopened at Beaulieu following a refresh in time for the summer holidays, with new displays and new motors joining old favourites.Just like many more >>
How To Keep Your Car Last Long
02.08.2022
Keeping up with your vehicle service and maintenance is vital to keeping it in top condition. It can also guarantee your safety, the safety of the people travelling with you, and the other drivers on the ro more >>
Debut for the newest generation of the Porsche 911 GT3 R
30.07.2022
Newly developed customer sport race car for GT3 series around the worldPorsche 911 GT3 R, Generation 992•    New 911 GT3 R ready to race from the start of the 2023 season•    More power, sophisti more >>
NIO Power Europe Plant to Commence Operation
30.07.2022
 Péter Szijjártó, Minister of Hungarian Foreign Affairs and Trade, and Hui Zhang, Vice President of NIO Europe Office, jointly announced that NIO Power Europe Plant in Pest megye, with investment from NIO, will commence operation in September.   more >>
The Sustainable Circuits Index™ 2022
29.07.2022
The 2nd edition of the Sustainable Circuits Index™ highlights that Global Motorsport Circuits are progressing towards Sustainability. •    The second edition of the first of its kind Sustainable Ci more >>
BMW Group offers a first glimpse of the new development site in Sokolov, CZ
28.07.2022
With the early deployment of two track sections, the BMW Group is developing test scenarios for new assistance systems for autonomous driving. Exclusive test runs with prototypes on a six-kilometre motorway-style circuit. Expected to more >>
Audi Progressive Retail: Launch of a new interactive concept for customers
28.07.2022
Audi RS e-tron GT: Combined electric power consumption in kWh/100 km: 20.2–19.3; combined CO2 emissions in g/km: 0   First Audi Progressive Showroom opens in São Paulo, Brazil        The expanded reta more >>
Astara further expands Isuzu business in Europe
27.07.2022
The new joint venture will be integrated within Astara Western EuropeAstara signed an agreement with its joint venture partners to acquire Isuzu distribution business in Germany and Austria (D-MAX and N-Series), Czech Republic and Slovakia(D-MAX). Isuzu Sales Deutschland GmbH who are distributors of the 4 countries wil more >>
The new Porsche 911 GT3 RS is in the starting blocks
27.07.2022
    The Porsche 911 GT3 is getting a big brother: the 911 GT3 RS, the new top of the 911 line in terms of performance will celebrate its world premiere on 17 August. The development of the high-performance sports car was inspired by the successful 911 RSR and 9 more >>
The MINI Concept Aceman: the first all-electric crossover model in the new MINI family
27.07.2022
MINI presents study previewing a new vehicle concept for the premium small car segment: purely electrically driven, chrome and leather-free, in a completely new design language and with advanced digitalisation, creating an intensive user experience. more >>
Exclusive 670kW Shelby King of the Road Adds New Chapter to 60-year Legacy
26.07.2022
•    Limited run of 225 examples for global customers, available in SA for the first time   •    Based on the GT500, the new Shelby upgrades are suited to track driving& more >>
Wolf Racing Cars unveils its plans for the new factory
26.07.2022
 Wolf Racing Cars announced today the start of the construction of the new headquarters. The process is expected to last 18 months.The constructor has been forced to think about a new structure earlier than expected as it filled up all the space availab more >>
Lamborghini - Beyond the Concrete, photos
26.07.2022
Lamborghini - Beyond the Concrete, photos more >>
Maserati Project24: radically unique on the track
22.07.2022
Maserati presents Project24. A project (referred to by a codename) of a limited series of super sports car - only 62 units - to raise the brand's unlimited performance to a new level of adrenaline on the track. The truly extreme track-only car more >>
Why the Lexus RZ's exterior design takes inspiration from the cheetah and dares to be different
21.07.2022
    Cheetah’s sprinting power inspired RZ’s poise    Design expresses electrification’s performance, driving pleasure, and refinement    “Next Chapter” spindle body hints at Lexus&r more >>
Revealed: All-New 2023 Honda Civic Type R Sets New Benchmark
21.07.2022
    All-New 2023 Honda Civic Type R is the most powerful Type R ever    Engineered from the ground up to deliver a thrilling, addictive driving experience, both on road and the racetrack    Low and wide design is sleek and sophisticated with beautifully integrated advanced aerodynamics more >>
Renault Group exceeds its decarbonisation target for its freight transport activities
21.07.2022
    Renault Group reduced its carbon emissions from freight transport in Europe by almost 7% between 2018 and 2021, within the scope defined by FRET 21.    FRET21, a scheme bringing together transport and logistics players, led by ADEME and the Association des Utilisateurs de Transport de Fret (AUTF), is working to reduce the environ more >>
Nissan Introduces ARIYA to the Metaverse through electrified British art
19.07.2022
    A unique and ground-breaking way to explore ARIYA’s all- electric world    Five unique pieces of electronic artwork produced by 5 different digital artists from 5 different clean air UK cities    Utilising WebXR technology to create 3d and 2d cross platform experiences more >>
Ford Wildlife Foundation Contributes to SANCCOB Penguin Rescue Project in Gqeberha
16.07.2022
•    Ford Wildlife Foundation (FWF) has contributed R50 000 to the Southern African Foundation for the Conservation of Coastal Birds (SANCCOB) in Gqeberha•    Emergency funds used to re more >>
SKODA reveals the first interior sketch of VISION 7S Concept Car
16.07.2022
- Space for up to seven people and two distinct interior modes- Balanced ratio of haptic and digital controls- Innovative design language focuses on reduced, simplified and highly practical shapes, the ease of use of digital technologies and material sustainability more >>
Will cheap car insurance end up costing you?
14.07.2022
Cheap car insurance can be tempting, but it may not be the best option for you. In fact, it could end up costing you more in the long run.   Here's why: when you buy cheap car insurance, you usually get what you pay for. That means that your policy will likely have a lot of exclusions and limitations. You may also have a higher deductible and lower co more >>
5 Tips On How To Get The Best Deal on a Used Car
13.07.2022
Used vehicle demand is very robust. According to Auto Trader's Market Insights tool, used automobile searches and inquiries are up by 14% in the first two months of this year compared to the same period last year. In addition, used cars are now being sold at a quicker rate than ever before, with stock leaving spaces on average 27 days after purchase. Thi more >>
7 Vehicle Maintenance And Repair Tasks That You Can DIY
13.07.2022
 If you are a frugal vehicle owner, you may sometimes be tempted to forgo basic maintenance tasks hoping to save a few dollars. However, if you are smart about your money you would know that putting off important maintenance tasks for a long time can affect your vehicle’s life, and cost you heavy repairs in the future. more >>
The Camo Finally Comes Off: All new Honda Civic Type R to be Revealed on July 20
13.07.2022
The most powerful Honda-branded production vehicle ever offered in the U.S. – the all-new 2023 Honda Civic Type R will make its world premiere on July 20 at 7:00 p.m. PT. Launching in the U.S. this fall, watch the camo finally come off. Catch it he more >>
Eco-friendly design for the Dacia network
13.07.2022
    Flexible and functional eco-friendly dealerships    A customer journey that matches the brand’s strategy    Key milestones in Dacia’s brand revampECO-FRIENDLY DEALERSHIPS more >>
Yanmar Introduces Carbon-Neutral Electrification Strategy at bauma 2022
13.07.2022
Yanmar a world-leading provider of power solutions and industrial machinery, introduces its electrification strategy for off-road vehicles and equipment at bauma 2022, in Germany, the world’s biggest construction equipment exhibition. Yanmar (stand A4.425) will sho more >>
Lamborghini Huracán Tecnica makes dynamic debut on track and tarmac
12.07.2022
Latest aspirated-V10 Huracán takes all its souls to drive   The Lamborghini Huracán Tecnica made its dynamic premiere on both road and circuit in Valencia, Spain at the end of June, putting the handling and performance of the l more >>
MANSORY presents a Ferrari SP2
12.07.2022
....to showcase a new individualisation strategy for high-end small-series vehicles  "MANSORY Bespoke"From now on, MANSORY offers complete customisations of all high-end vehicles from small and special series production for its more >>
UK Automotive manufacturing carbon footprint falls to lowest ever level
12.07.2022
    UK Automotive’s production carbon footprint shrinks to lowest level on record, as CO2 emissions fall -11.2% in 2021.    Industry greener and cleaner with less energy use and more sustainable energy sourcing. more >>
All-New Honda CR-V Gets a Sophisticated and Rugged Design and More Advanced, Sporty Hybrid System
12.07.2022
America’s Favorite SUV Gets Even Better:    Hybrid models are new flagship of the CR-V model line, featuring a more advanced and powerful two-motor hybrid-electric powertrain    CR-V hybrid mod more >>
BILSTEIN B6 Camper: new product line especially for motorhomes
12.07.2022
Shaking up the camper market – but not the passengersThe motorhome industry is booming, with no end in sight. However, the driving behaviour of the mostly one-to-one commercial vehicle base is not always ideal for camping use. more >>
Ford Launches New High-Tech 10 320m2 Stamping Plant for Next-Gen Ranger in South Africa
09.07.2022
•    New on-site Stamping facility at Silverton Assembly Plant a first for Ford in SA, one of the key projects of Ford’s R15.8-billion investment in local operations   •    Five-stage more >>
Jeep® and Juventus celebrate the tenth year of their partnership
09.07.2022
    2022-2023 football pre-season is underway and Juventus and Jeep® celebrate the tenth year of their successful partnership.    The Jeep® logo on the club’s new kit showcases the brand’s path towards zero-emissions freedom.    During this ten-year sponsorship, the bianconeri have more >>
Polestar launches 2022 global Design Contest
08.07.2022
    Polestar launches 3rd annual Design Contest. 2022 edition will crown two winners – one for interior and one for exterior design.    2022 Design Contest brief is to design a Polestar vehicle that is about the experience more >>
Lunaz Applied Technologies quadruples footprint of Upcycled Electric Vehicle (UEV) campus as part of global expansion
08.07.2022
    Lunaz Applied Technologies (LAT) extends upcycling campus by 140,000 sq ft       200,000 sq ft footprint is 300% increase of Silverstone upcycling campus more >>
Lexus Electrified Sport Concept completes successful European Debut at Goodwood
07.07.2022
    Tens of thousands of visitors to the annual automotive celebration ‘The Goodwood Festival of Speed’ enjoyed first opportunity to see Lexus’ vision for a future all-electric high-performance sports car   more >>
Porsche 993 RSR from Wagner Motorsport with 330 hp and BILSTEIN racing suspension
06.07.2022
“For us, only BILSTEIN comes into question!”For over 35 years, Wagner Motorsport from Kolbermoor near Rosenheim has been considered one of the top addresses when it comes to Porsche vehicles. The Bavarian company specialises in the repair and optimisa more >>
2001-2022 copyright automobilsport.com