Q

why my car fuel consumption high

If your car's fuel consumption has suddenly shot up, there could be a bunch of reasons behind it. First off, I'd suggest checking if your tire pressure is too low. Low tire pressure increases rolling resistance, which in turn pushes up fuel usage. Malaysia's hot weather can also cause pressure to drop faster, so regular checks are a must. Next, a clogged air filter restricts airflow, leading to poor combustion efficiency. I recommend inspecting or replacing it every 10,000 kilometers. Carbon buildup is another culprit—constant low-speed driving or using low-quality fuel can gunk up your engine. Using a fuel system cleaner regularly or getting a professional clean can help sort that out. Your driving style plays a big role too. Frequent hard acceleration and sudden braking guzzle fuel like crazy; smooth, steady driving is way more economical. Then there's engine oil—if it's too thick or past its change date, it puts extra strain on the engine. Always stick to the manufacturer's recommended oil grade and change intervals. In Malaysia, running the AC on full blast for ages is a common fuel drain. Cranking up the temperature a bit or using recirculation mode can ease the load on the compressor. If you've ticked all these boxes and the problem persists, it might be a faulty oxygen sensor or spark plugs—time to get a pro to diagnose it. Truth is, fuel economy is closely tied to how well you maintain your car. Regular servicing not only keeps your fuel costs down but also extends your car's life. I'd advise keeping track of your fuel consumption; it's the best way to spot issues early.
Special Disclaimer: This content is published by users and does not represent the views or position of PCauto.
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Related Q&A

Q
Is PS the same as HP?
PS and HP are both units for measuring engine power, but they aren’t exactly the same. PS (Pferdestärke) is the German standard, while HP (Horsepower) is the British/American measurement. One PS is roughly 0.986 HP—close, but not identical. You’ll usually see PS in European and Asian car specs, whereas HP dominates in the US and UK markets. So always check the units when comparing numbers to avoid confusion. Besides PS and HP, power can also be listed in kilowatts (kW). One PS equals about 0.735 kW, and many countries—including ours—are increasingly using kW as the standard for consistency. Converting between units helps when cross-checking performance figures, especially if you’re comparing cars from different regions. Just remember: numbers only tell part of the story. Factors like torque, transmission tuning, and vehicle weight all shape how a car actually feels on the road. So while power matters, it’s not the only thing to consider when choosing a car.
SparkleSparkleDec 23, 2025
Q
How do we measure engine power?
As an automotive editor, here's how we measure engine power: Engine output is typically expressed in horsepower (hp) or kilowatts (kW). The most accurate method uses a dynamometer, which directly measures torque and RPM before calculating power via the formula *Power = Torque × RPM ÷ 5252*. There are two key measurements—*wheel horsepower* (the actual power reaching the wheels) and *crank horsepower* (the engine’s theoretical output). Manufacturers usually advertise the latter. Beyond lab testing, you can estimate power roughly using OBD scanners or aftermarket tools, though they’re less precise than a dyno. Keep in mind that regional testing standards (like the EU’s ECE R85 or the U.S. SAE standard) may affect results. Turbocharged engines are also sensitive to conditions—hot, humid weather can slightly reduce output. That said, power figures alone don’t tell the whole story. Real-world performance hinges on factors like transmission efficiency, vehicle weight, and aerodynamics. Always pair specs with a test drive to judge properly.
SkyeSkyeDec 23, 2025
Q
What gives an engine its power?
The power of an engine hinges on several key factors. First up is displacement—bigger usually means more air and fuel crammed into the cylinders, creating stronger explosions to shove those pistons down. Then there’s cylinder count and layout—think four-cylinder, straight-six, or V-configurations—which affects how smoothly and efficiently the power gets delivered. Forced induction like turbocharging or supercharging can seriously wake up an engine by cramming in extra air to burn more fuel, netting you way more horsepower. Higher compression ratios also help, squeezing better combustion efficiency and sharper power output. Tech like variable valve timing and lift? That fine-tunes airflow at different RPMs for crisper throttle response. Modern engines lean heavily on precision ECU management—metering fuel sprays and spark timing to extract every last drop of usable energy. Performance seekers might gravitate toward high-revving screamers or hybrid setups for instant grunt. And don’t forget: keeping your engine in fighting shape demands proper maintenance and the right fuel grade—no cutting corners.
StarryNightWandererStarryNightWandererDec 23, 2025
Q
Is engine power the same as horsepower?
Engine power and horsepower are essentially the same thing—they both measure an engine’s output, just in different units. Power is the standard term in the International System of Units, usually expressed in kilowatts (kW), while horsepower is the more traditional unit you’ll see in everyday car talk and spec sheets. One horsepower equals roughly 0.7457 kW, so converting between the two is straightforward. In the automotive world, horsepower tends to get more attention because it’s a bigger number and feels more relatable. But keep in mind, power or horsepower is just one piece of the performance puzzle. Real-world driving dynamics also depend on torque, transmission tuning, vehicle weight, and more. Torque plays a bigger role in acceleration, while horsepower has more influence on top speed. Different engine technologies also shape how power is delivered. Turbocharged engines, for example, pack more low-end torque, while naturally aspirated ones often feel more linear at higher revs. So when you’re picking a car, don’t just fixate on the horsepower figure—think about how you actually drive and what matters most to you.
LovelyliLovelyliDec 23, 2025
Q
What is the engine power?
Engine power refers to the energy output by an engine per unit of time, usually measured in horsepower (hp) or kilowatts (kW). It’s a direct reflection of an engine’s performance—the higher the number, the stronger the power. Horsepower is a key indicator of a car’s acceleration, top speed, and load capacity. For example, in everyday driving, a more powerful engine makes overtaking or climbing hills feel effortless. Different vehicles have different power needs. An economy car might only require 80-120 hp, while a performance car or a large SUV could need 200 hp or more. That said, power isn’t the only thing that defines the driving experience. Torque and transmission tuning also play crucial roles. Take diesel engines, for instance—they might not match gasoline engines in peak power, but their high torque at low RPMs makes them better for quick starts and heavy loads. Thanks to turbocharging, modern small-displacement engines can now deliver power close to that of older, larger engines while still being fuel-efficient. When choosing a car, buyers should balance power, fuel economy, and maintenance costs based on their needs. City commuters don’t need to chase big horsepower numbers, but if you frequently drive long distances or haul heavy loads, having solid power reserves matters.
SparklingFireflySparklingFireflyDec 23, 2025
Q
Which is better, a 1.6 or 2.0 engine?
Choosing between a 1.6L or 2.0L engine really comes down to how you use your car. The 1.6L is easier on fuel and cheaper to maintain—perfect for city driving or tighter budgets. While it won’t blow you away with power, it handles daily commutes just fine. Now, the 2.0L packs more punch, especially for highway driving or if you enjoy a livelier ride. But expect slightly higher fuel and maintenance costs. At the end of the day, it’s about your driving style and needs. Don’t forget—turbocharged small engines now deliver near-big-displacement power, but naturally aspirated engines still win for smoothness and reliability. My advice? Test drive both and see what clicks.
SparklesSparklesDec 22, 2025
Q
Is a 1.6 L engine a V6?
A 1.6-liter engine is typically not a V6 but an inline-four (L4) design. Smaller displacement engines prioritize fuel efficiency and compact packaging—inline configurations are cheaper to build and easier to maintain. V6 engines, with six cylinders arranged in a V-shape, usually start around 2.5 liters (e.g., common 3.0L V6 or 2.5L V6 units). They deliver smoother operation and stronger power than four-cylinders but bulkier and thirstier. In local markets, 1.6L models like the Proton Saga, Perodua Myvi, or Japanese Corollas all use inline-fours, while midsize sedans like the Camry 2.5L opt for V6s. For daily driving, a four-cylinder makes sense; if you crave refinement and acceleration, a six-cylinder is tempting—just weigh the higher fuel costs and sticker price. Turbocharging now lets small four-cylinders punch close to a V6’s performance, though.
CascadingCascadingDec 22, 2025
Q
Is 1.5 l the same as 1500cc?
When it comes to engine displacement, 1.5 liters and 1500cc are exactly the same thing—just different ways of saying it. Since 1 liter equals 1000 cubic centimeters (cc), 1.5 liters naturally translates to 1500cc. You’ll often see this kind of labeling in car specs, especially with Japanese and European models. Engine size is a key measure of an engine’s total capacity, and generally, the bigger the displacement, the more power you get—though fuel consumption goes up too. The 1.5-liter engine hits a sweet spot for many drivers, offering a solid balance of performance and efficiency, which is why it’s so popular in everyday cars. You’ll find it in plenty of well-known models, both naturally aspirated and turbocharged. Speaking of turbos, they’re a big reason why 1.5T engines are a common pick—they squeeze out extra power without the need for a larger displacement. One more thing to keep in mind: engine size can affect road tax costs, so understanding these units is useful when budgeting for a car.
ToughguyToughguyDec 22, 2025
Q
What is the difference between 1l and 1.2 L engine?
The key difference between 1-liter (1L) and 1.2-liter (1.2L) engines comes down to displacement—the total volume of all cylinders in an engine, measured in liters. Generally, a larger displacement means more power and torque, so a 1.2L engine will likely feel stronger during acceleration, highway driving, or when tackling hills with a load. That said, it’ll also drink a bit more fuel compared to the 1L. The 1L, being smaller, prioritizes fuel efficiency, making it a smart pick for city commuting or everyday runs. On the flip side, the 1.2L’s extra performance often means higher manufacturing costs, which might bump up the car’s price tag. Plus, the 1L’s compact size fits better in smaller or budget-friendly models. Your choice really hinges on driving needs: go for the 1.2L if you regularly hit the highway or want more grunt, but stick with the 1L if you’re mostly urban-bound and watching fuel bills. Oh, and don’t forget—tech like turbocharging or variable valve timing can squeeze near-equal performance from smaller engines these days, so specs alone don’t tell the full story. Always check how the engine’s tuned.
SilverStrikeSilverStrikeDec 19, 2025
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Is 2000cc the same as 2 litres?
Yes, 2000cc and 2 liters refer to exactly the same engine displacement. "cc" stands for cubic centimeter, and since 1 liter equals 1000 cubic centimeters, 2000cc is simply 2 liters – just different ways of saying the same thing. In the automotive world, engine size is typically labeled in either liters (L) or cubic centimeters (cc). You'll see things like 1.5L or 1500cc, 1.8L or 1800cc – all describing the total cylinder volume. Generally, a larger displacement means more power, though often at the cost of higher fuel consumption. That said, while displacement is a key spec, it doesn’t tell the whole story. Factors like turbocharging, cylinder count, and fuel injection systems also play a huge role in performance. So you can’t judge an engine purely by its size. Also worth noting: different markets have their own preferences – some regions lean toward liters, others use cc more often. But at the end of the day, they’re measuring the exact same thing.
PrettyPicturePrettyPictureDec 19, 2025

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Latest Q&A

Q
How much is 1 horsepower?
Horsepower (hp) is a unit of power that measures how much work a horse can do in one second—specifically, lifting 550 pounds one foot off the ground. In metric terms, that’s roughly 745.7 watts. The term was coined by engineer James Watt to compare steam engines to the workhorses they were replacing. In cars, horsepower tells you how strong an engine is, but it’s not the whole story. Torque, weight, and drivetrain efficiency all shape how a car actually feels on the road. Also worth noting: there are slight variations in how horsepower is measured. For example, metric horsepower (PS) is about 0.986 hp, though the difference is negligible in everyday talk. When shopping for a car, don’t just fixate on horsepower. Think about how you’ll use it. A small turbocharged engine might deliver better low-end torque for stop-and-go traffic, while a high-horsepower engine could be overkill for city driving. And if you’re looking at EVs, remember their power is often listed in kilowatts (kW)—where 1 kW equals about 1.34 hp. Knowing these conversions helps compare different powertrains more accurately.
PhoenixWingPhoenixWingDec 23, 2025
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How to calculate main engine power?
The calculation of main engine power is usually based on the physical relationship between torque and RPM, with the formula being * * power (kW)=torque (Nm) x RPM ÷ 9549 * *, or * * horsepower (HP) in English units=torque (lb ft) x RPM ÷ 5252 * *. In actual measurement, manufacturers will collect data and draw power speed curves under specific operating conditions through engine bench testing, while commonly used calibration values by consumers (such as maximum power) are mostly theoretical peak values. It should be noted that the power on the wheels (the actual power transmitted to the wheels) may be lower than the engine output value due to factors such as transmission efficiency and transmission losses. This is also why modification enthusiasts often verify actual performance through chassis dynamometers. In addition, technologies such as turbocharging and variable valve timing can optimize combustion efficiency and indirectly improve power performance, while electric vehicles directly output instantaneous maximum torque through motor characteristics, and the power calculation logic is different from traditional internal combustion engines. If you have doubts about the specific vehicle model data, you can refer to the official technical manual or professional evaluation report.
IceStormIceStormDec 23, 2025
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What does a 1.6 litre engine mean?
A 1.6-liter engine means the total displacement of all cylinders is 1.6 liters—in other words, the combined volume swept by the pistons from top to bottom dead center is 1,600 cubic centimeters. Generally, a larger displacement means more power, but it also leads to higher fuel consumption. Engines of this size are very common in the local market because they strike a good balance between performance and fuel efficiency, making them ideal for daily commuting and family use. Displacement is one of the key indicators of engine performance, but real-world performance also depends on other technologies, like turbocharging, fuel injection systems, and variable valve timing. These can make engines of the same displacement produce different power outputs and efficiency levels. For example, some 1.6L turbocharged engines can deliver power close to a naturally aspirated 2.0L engine while being more fuel-efficient. When choosing an engine, it’s not just about displacement—you should also consider your driving habits and needs. If you frequently drive long distances or at high speeds, a bigger engine might be preferable, while a smaller turbocharged unit could be the smarter choice for city driving.
CreatorIdeaCreatorIdeaDec 23, 2025
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Is a 1.6 L engine good?
The 1.6L engine strikes a good balance for everyday driving. It delivers enough power for city commutes and occasional highway trips while maintaining decent fuel efficiency. Maintenance costs are reasonable too—a practical choice for family cars. Naturally aspirated 1.6L engines are particularly reliable, with mature tech that prioritizes durability and low upkeep. If you want extra punch, turbocharged 1.6L variants can match the performance of some 2.0L naturally aspirated engines without sacrificing much fuel economy. That said, your driving habits matter. Frequent long-distance drivers might find 1.6L a bit underwhelming, but it’s more than adequate for urban errands. Keep in mind, performance varies across brands—always test-drive before deciding.
PilotFlightPilotFlightDec 23, 2025
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Is a 1.5 litre engine good?
Whether a 1.5L engine is right for you depends on your driving needs. For city commuting and daily errands, this displacement performs exceptionally well—it’s fuel-efficient, cheaper to maintain, and ideal for stop-and-go traffic. Plus, many modern 1.5L turbocharged engines now deliver power close to traditional 2.0L naturally aspirated ones, easily handling most family trips. If you’re mainly driving in urban areas with occasional highway runs, a 1.5L is plenty. But if you frequently haul heavy loads uphill or crave sharper throttle response, you might want to consider a larger engine. Keep in mind, though: advancements like optimized intake/exhaust systems and direct injection have given smaller turbo engines decent low-end torque, which is a big help in crawling traffic. So beyond displacement, pay attention to how the engine is tuned and what tech’s under the hood.
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