Fuel Efficiency Myths: What Really Saves You Gas?
Bob Cornwall • July 1, 2025
Let’s bust some of the most common fuel-saving myths so you can make smarter decisions behind the wheel—and get the most out of every tank.
With gas prices always on the rise in Southern California, drivers in Corona Hills are constantly looking for ways to save at the pump. Unfortunately, there’s a lot of misinformation out there about what really helps—and what’s just wishful thinking.
At Super Service of Corona Hills, we’re all about facts over fiction. Let’s bust some of the most common fuel-saving myths so you can make smarter decisions behind the wheel—and get the most out of every tank.
Myth #1: Premium Gasoline Boosts Fuel Economy in All Cars
Premium gas is more expensive, so it must be better for mileage, right? Not exactly. Unless your vehicle specifically requires premium fuel, using it won’t improve performance or efficiency. In fact, regular unleaded is perfectly fine—and often recommended—for most vehicles.
The Truth: Use the fuel grade your owner's manual recommends. Anything more is just extra cost with no benefit.
Myth #2: Warming Up Your Car Saves Fuel
It’s a common belief that letting your engine idle before driving improves performance. While this was true decades ago, modern engines are built to operate efficiently with minimal warm-up time.
The Truth: Extended idling burns gas unnecessarily. A few seconds is enough—just start driving gently to let your engine reach optimal temperature.
Myth #3: Rolling Down Windows Is Always Better Than A/C
You’ve probably heard that running the air conditioning kills your fuel efficiency. While it’s true A/C uses power, driving with the windows down—especially at higher speeds—creates aerodynamic drag that can also reduce MPG.
The Truth: At slower speeds, open windows are fine. On the freeway, you’ll often get better mileage with the windows up and the A/C on a low setting.
Myth #4: Fuel Additives Dramatically Increase MPG
Gas station shelves are filled with fuel additives claiming to boost performance and improve mileage. While some have benefits in specific situations, they’re not a magic fix.
The Truth: Most drivers won’t see significant MPG improvements from additives alone. Regular maintenance, clean air filters, and tire pressure checks do far more for your wallet.
Myth #5: Small Cars Always Get Better MPG
Smaller vehicles do tend to use less fuel, but that’s not always the case. Advances in engine technology mean many midsize sedans, hybrids, and even some SUVs can match or outperform smaller cars in terms of efficiency.
The Truth: Fuel economy depends more on the engine, transmission, and how the vehicle is driven—not just its size.
FAQ: Real Ways to Improve Fuel Economy
1. What’s the best way to save fuel in city driving?
Avoid rapid acceleration and hard braking. Smooth, steady driving improves efficiency and puts less wear on your brakes and tires.
2. How often should I check my tire pressure?
At least once a month. Underinflated tires create rolling resistance, which decreases fuel economy and increases tire wear.
3. Can dirty oil reduce gas mileage?
Yes! Old, dirty oil increases engine friction and reduces efficiency. Stick to your oil change schedule to keep your engine running smoothly.
4. Does carrying extra weight affect mileage?
Absolutely. The heavier your vehicle, the more energy it takes to move. Clear out your trunk and remove unnecessary roof racks to cut back on drag and weight.
5. Should I get a fuel system cleaning to boost MPG?
If your vehicle has high mileage or you've noticed sluggish performance, yes. A professional fuel system cleaning can restore lost efficiency and help your engine run cleaner.
Can My Repairs Be Covered By My Aftermarket Warranty?
Super Service of Pomona Valley has been getting very busy with aftermarket warranties! We do them all, especially CarMax aftermarket warranties. The local CarMax team is reportedly 3 weeks backed up, and we have been getting a lot of overflow.
Our auto repair team works on all aftermarket warranties at all of our Super Service locations. The main aftermarket warranties we work with include:
- CarMax
- Fidelity
- CNA
- Assurance
- AAA
- Progressive
- Mercury
Boost Your MPG with Help from Super Service of Corona Hills
Want to stop wasting gas and start driving smarter? From tune-ups to air filter replacements, we’ve got the services that actually improve your fuel economy—no myths required.
Call
(951) 256-7886, visit us at
2189 Sampson Ave #101a, Corona, CA, orbook online today. Let’s put real savings back in your tank.
Avoid holiday breakdowns with a pre-trip vehicle inspection at Super Service of Corona Hills. From brakes and tires to fluids and batteries, our ASE-certified team ensures your car is road-ready and reliable. Schedule your holiday vehicle check today.
Get professional tire repair at Super Service of Corona Hills, CA. Our dedicated technicians ensure your ride is safe and smooth. Schedule an appointment today!
Introduction As the weather starts to cool and the days grow shorter, your car begins to feel the change, too. The shift in temperature, increased moisture, falling leaves, and darker evenings all create new challenges for your vehicle, whether you're commuting daily or planning weekend getaways. Now is the perfect time to schedule a seasonal vehicle inspection. At Super Service of Corona Hills, we believe the best way to avoid surprise breakdowns and expensive repairs is simple: routine maintenance, done at the right time. Let’s talk about what your car needs during the fall season and how our team can help you stay ahead of the weather and the wear. Why Seasonal Maintenance Matters Right Now The transition from summer to cooler months puts extra stress on your vehicle in ways many drivers don’t expect. It's not just about winter, it’s about what’s happening right now: Changing Temperatures = Fluid Fluctuations As the temperature cools, your car’s fluids — like engine oil, coolant, and brake fluid — thicken or shift in performance. It’s important to make sure your levels are topped off and that the fluids are still in good condition. Tire Pressure Drops Naturally When the air gets cooler, your tire pressure drops. That can lead to under-inflated tires, poor fuel economy, and increased risk of blowouts, especially if you’re driving on worn treads. Battery Stress Increases Battery life can be impacted by seasonal changes. After enduring summer heat, your battery may be weaker than you think, and with colder mornings around the corner, it might struggle to start your engine. Poor Visibility Conditions Shorter days and unpredictable weather mean you’re likely driving more in the dark or during wet conditions. Functional headlights, brake lights, and windshield wipers become essential for visibility and safety. Brake & Suspension Systems Are Tested More Wet roads and leaf-covered streets can reduce traction, meaning your brakes and suspension need to be in top shape to keep you safe. Any delay in stopping or uneven handling becomes more dangerous this time of year. Heating & Defrosting Systems Are Essential Your HVAC system isn’t just about comfort — it’s about safety too. A failing heater or defroster can make driving uncomfortable and even dangerous if your windshield fogs up with no way to clear it. What We Check in a Fall Vehicle Inspection At Super Service of Corona Hills, our comprehensive seasonal inspection is designed to prepare your vehicle for the months ahead. We look at all the systems most affected by this seasonal shift: Battery: We test your battery's health and charging capacity so you won’t be surprised by a dead battery on a chilly morning. Tires: We inspect tread depth, check for uneven wear, and adjust pressure based on seasonal recommendations. Brakes: We examine your pads, rotors, and brake fluid to ensure responsive, reliable braking. Fluids: From oil and coolant to power steering and transmission fluid, we ensure all levels are correct and that the fluids themselves are clean and effective. HVAC & Defrost: We test your climate control system, defrosters, and air filters for comfort and safety. Windshield Wipers & Washer System: We replace worn blades and ensure your washer fluid is ready for rainy days. Lights: Headlights, brake lights, turn signals — everything gets tested to make sure you’re seen, and can see clearly. Belts & Hoses: Cracks, leaks, and signs of wear get spotted before they turn into breakdowns. Suspension & Steering: We check for worn shocks, struts, and bushings to ensure a smooth, safe ride. Why Now Is the Best Time for This Inspection When you take care of your car before the season takes a toll, you: Prevent costly breakdowns caused by overlooked wear or fluid failure. Stay safe with better visibility, braking, and handling in unpredictable weather. Boost fuel efficiency with properly inflated tires and clean filters. Extend your car’s life by staying on top of minor issues before they become major ones. Drive with peace of mind, knowing you’re ready for anything the season throws your way. The Super Service Advantage We know car maintenance can be inconvenient, which is why we work hard to make it easy. Here’s what you can expect when you visit Super Service of Corona Hills: Digital Vehicle Inspections: With photos and videos, you’ll see exactly what’s happening under your hood. No pressure, just facts. Free Pick-Up & Drop-Off: Can’t make it in? No problem. We’ll come get your vehicle and bring it back when it’s ready. Loaner Vehicles Available: So your day doesn’t skip a beat. Expert Technicians: Our ASE-certified techs know their stuff and work with honesty and precision. 3-Year / 36,000-Mile Warranty: Nationwide coverage on qualifying parts and repairs. Friendly Service: We’re not just here to fix cars, we’re here to help people. Conclusion The weather is changing, and your car needs to change with it. A seasonal inspection isn’t just smart, it’s essential. It’s your best defense against breakdowns, unsafe driving conditions, and expensive surprises. At Super Service of Corona Hills, we’re here to help you transition into the new season with total confidence. Whether you're commuting locally or heading out on fall road trips, your vehicle deserves the best care, and so do you. 📅 Ready to book your seasonal inspection? https://www.superserviceofcoronahills.com/
Ensure safe driving with expert wheel alignment in Corona Hills at Super Service of Corona Hills. Maximizing tire life & improving fuel efficiency. Visit us today!
Introduction: School is back in session, traffic on McKinley Street crawls, and Corona Hills mornings begin to crisp. With every stop sign you roll up to, one system quietly holds your family’s safety in its grip: your brakes. During September’s back-to-school surge, those calipers and pads move from supporting players to front-line heroes, especially when a distracted driver cuts in or a soccer ball bounces into the street. Yet most drivers only think about brakes when they squeal, grind, or trigger a dashboard light. By then, damage had already started. This month, Super Service of Corona Hills is shining a headlight on preventive brake care because the best emergency stop is the one you never notice. The Hidden Cost of Ignoring Brake Wear While modern braking systems are designed to be robust, they are not maintenance-free. The National Highway Traffic Safety Administration (NHTSA) estimates that approximately 25% of car crashes related to mechanical failure are due to brake issues. Even more striking, many of these incidents could be avoided with regular inspections and routine servicing. Ignoring brake maintenance can lead to: Warped rotors , which cause vibration and reduce control Metal-to-metal grinding , which results in expensive repairs Brake fade , where stopping power decreases after prolonged use, especially dangerous during downhill drives or emergency stops By catching wear early, you not only protect your wallet, you keep your loved ones safe. Physics in the Driver’s Seat: How Brakes Stop a Car When you press the brake pedal, a precisely engineered chain reaction begins: Hydraulic Pressure Brake fluid converts the mechanical force of your foot into hydraulic pressure, pushing fluid through the brake lines. Caliper Clamp This pressure moves pistons inside the brake caliper, pressing the pads against the spinning rotor. This contact creates friction, which slows the vehicle down. Heat Dissipation The motion energy of your moving vehicle is converted into heat. Vented rotors and composite pad materials work together to release that heat into the air quickly and safely. If any part of this sequence falters—such as air in the brake lines, worn pads, or warped rotors— your stopping distance increases dramatically . At 45 mph, just 20 extra feet could mean the difference between a safe stop and a costly accident. The Telltale Signs You Need a Brake Check Don’t wait until something “feels off.” Look and listen for these warning signs: Squealing or Grinding – Often the first warning from built-in wear indicators or metal-on-metal contact Steering Wheel Vibration When Braking – A sign of uneven rotors or pad deposits “Soft” or Spongy Pedal Feel – Could indicate air in the brake lines or deteriorated brake fluid Longer Stopping Distance – Often the result of pad glazing, low fluid, or caliper issues Dashboard Brake Light – A warning for everything from low fluid to ABS malfunctions Pro Tip: Brakes should be inspected at least every 12,000 miles or once a year—whichever comes first. Your Fall Brake Checklist September is your best opportunity to prepare for cooler weather and busier roads. Here’s what we inspect during a comprehensive brake evaluation : Measure Pad Thickness Pads below 3 mm are considered unsafe—replace them before they wear through. Inspect Rotor Surface We check for heat spots, glazing, rust, and warping. Resurfacing or replacing rotors ensures smooth, even braking. Brake Fluid Test & Flush Brake fluid attracts moisture over time, which reduces its effectiveness. We test it and flush if contamination is found. Caliper Performance Test Sticking calipers can cause uneven braking and tire wear. We inspect and lubricate all moving components. Brake Line & Hose Check Cracks or leaks in brake lines can cause dangerous pressure loss. We thoroughly inspect for wear and corrosion. ABS / Traction Control Diagnostic Your anti-lock system is essential in rainy or emergency braking situations. We perform a scan to catch sensor faults early. Road Test for Real-World Responsiveness We take your vehicle on a short test drive to simulate actual braking conditions—hot or cold, hard or gentle. A 45-minute inspection now can save thousands in repairs—and more importantly, ensure your safety when every second counts. Why Trust Super Service of Corona Hills? At Super Service, your safety is our top priority—and we don’t cut corners when it comes to brake repair. Here’s what sets us apart: Master ASE-Certified Technicians with years of experience in modern brake systems Digital Inspections complete with high-resolution photos and videos sent straight to your phone 3-Year / 36,000-Mile Nationwide Warranty on all brake work for your peace of mind Free Alignment Check with every visit Loaner Cars & Shuttle Service —we respect your time Transparent Pricing & Honest Recommendations —we educate, not up-sell Bonus Tips for Autumn Safety Fall driving in Southern California has its challenges. Use these seasonal tips to enhance your brake performance: Check Tire Pressure Weekly : Proper inflation ensures even stopping power Remove Excess Cargo : Every 100 lbs can add up to 10 ft of stopping distance Mind the Leaves : Wet leaves create slick conditions similar to ice, reduce speed, and leave extra space Use Engine Braking : On long downhill grades, shift into a lower gear to reduce reliance on brakes and prevent overheating Did you know? Even minor brake fade can reduce your stopping power by 30% , especially on downhill roads or during stop-and-go traffic. Conclusion: Corona Hills roads are getting busier, mornings are growing colder, and your schedule is more packed than ever. Don’t let worn brakes sneak up on you. With one visit, we can help ensure your car is ready for school zones, rain-slick roads, and unpredictable traffic. Schedule your comprehensive brake inspection today at www.superserviceofcoronahills.com and drive into fall with total confidence. Because when it comes to your safety, stopping power is everything.
Discover expert preventative maintenance tips from Super Service of Corona Hills in Corona Hills, CA. Ensure your vehicle's longevity. Visit us today!
By Super Service of Corona Hills Introduction: In Corona Hills, summer doesn’t just mean beach trips and BBQs—it means contending with triple-digit heat that turns your parked car into a rolling oven. By August, asphalt is shimmering, dashboards feel like griddles, and traffic on I-15 slows to a crawl beneath a blazing sun. That’s when an overworked A/C shows its first cracks. Every year, our team at Super Service of Corona Hills welcomes a parade of guests who thought their vents were fine until the cold air vanished. Vanessa, a long-time guest, learned this the hard way. Driving toward Hidden Valley Park, she cranked the dial, expecting frosty relief. Nothing. “Just hot air and panic,” she laughed when we saw her. Cases like Vanessa’s surge in late summer, because August heat acts as a stress test on every seal, hose, and compressor hiding behind your dash. How the Heat Wears Down Your A/C 1. High Ambient Temperatures When the outside air starts above 100°F, your A/C must pull those roasting molecules inside the evaporator, strip out the heat, and shove chilled air back through the cabin. The hotter the input, the harder every component must work. 2. Non-Stop Usage Family road trips, beach weekends at Corona del Mar, and late-night taco runs mean your A/C rarely gets a break. Continuous cycles accelerate refrigerant loss and push lubricants to their limits. 3. Component Fatigue Rubber O-rings that were “fine” in spring expand and contract each time you turn the system on, eventually cracking and leaking. Compressors spin thousands of additional revolutions every August commute, and condensers bombard road debris and insects on the 91 Freeway drives. Even a “minor” issue low refrigerant charge, a partially blocked condenser, or a sluggish blower motor can flip your vents from arctic to Sahara almost overnight. Prevention beats perspiration every time. Real-Life Rescue: Carlos’s Canyon Cruise Carlos rolled into our shop after a Friday night cruise through Temescal Canyon turned into a mobile sauna. “I felt like I was baking bread in my car,” he joked. Our ASE-certified techs performed a 60-point A/C diagnostic and found three culprits: Low refrigerant from a slow leak at a compressor seal A failing fan clutch that kept the condenser from shedding heat Clogged cabin air filter packed with canyon dust and pollen Within an hour we evacuated, recharged, replaced the faulty clutch, and slipped in a fresh filter. Carlos left with 38 °F air blasting from the center vents—and a reminder to schedule maintenance before the next canyon run. Your August A/C Survival Checklist Want to avoid a Carlos-style meltdown? Tick off these essentials before the next heat wave: Book a 60-Point A/C Inspection: compressor health, refrigerant level, pressure readings, and leak detection. Verify Refrigerant Charge: Even a 10 % loss can raise vent temps by 15°F. Replace the Cabin Air Filter: clean air improves airflow, cooling speed, and interior air quality. Clean the Condenser Fins: road grit reduces heat transfer; a gentle rinse restores efficiency. Listen for Odd Noises: squeals or rattles often signal bearing or clutch failure. Test Blower Speeds: Weak airflow on high setting may point to a failing motor or resistor. Inspect Belts & Hoses: heat-stressed rubber can crack and leak refrigerant. Spending a short hour in our shop now can save you from pricey compressor replacements—and days of sweaty driving later. Bonus Cool-Down Tips for Corona Hills Drivers Use a Sunshade & Crack the Windows: Lower cabin temps by 20°F before you even turn the key. Remote-Start if Equipped: Let the A/C begin cooling while you lock up the house. Tint Wisely: Legal ceramic tint blocks infrared heat, protecting your interior and A/C load. Park Smart: Shade under a tree at Santana Park beats direct sun in a parking lot any day. Why Choose Super Service of Corona Hills? Your comfort is our mission, and we back that promise with: Master ASE-Certified Technicians specializing in cutting-edge diagnostics and precision A/C repair Digital Inspections: photos and videos sent straight to your phone so you see what we see 3-Year/36,000-Mile Nationwide Warranty: peace of mind long after you leave the shop Free Alignment Check with every service, because cool rides should drive straight too Courtesy Shuttle & Loaner Cars: keep your schedule running even while we work on your ride Friendly, Transparent Service: no jargon, no up-selling, just honest answers and clear pricing Conclusion: Corona Hills heat is no joke, but you don’t have to sweat through it. A single proactive visit can ensure your A/C survives every scorcher August throws your way—whether you’re commuting to Riverside, cruising Dos Lagos, or exploring Skyline Drive. Ready to chill? Schedule your comprehensive A/C inspection today at www.superserviceofcoronahills.com and drive into the season with confidence, comfort, and ice-cold air on demand.
Expert tire repair in Corona Hills at Super Service of Corona Hills. Improve tire life and safety with our skilled services. Schedule an online appointment now.
Trust your brake repair needs to Super Service of Corona Hills. Experience skilled service in Corona Hills. Schedule an online appointment now!
Your car’s exhaust system plays a crucial role in reducing emissions, improving fuel efficiency, and ensuring your engine runs smoothly. Over time, components like the muffler, catalytic converter, and pipes can wear down, leading to decreased performance and potential safety hazards. A well-maintained exhaust system helps keep harmful gases away from the cabin, improves engine efficiency, and reduces noise. Regular inspections and timely repairs can prevent costly issues and keep your car running at its best. Follow this exhaust system maintenance checklist to ensure your vehicle stays safe and efficient. If you notice any warning signs of an exhaust issue, schedule an inspection with Super Service of Corona Hills. Our ASE-certified technicians are here to help. Book your appointment today: https://www.superserviceofcoronahills.com/ Inspect for Unusual Noises A loud or rattling exhaust is one of the first signs of a problem. If your car sounds louder than usual or you hear a rumbling noise while driving, it could indicate a hole or leak in the exhaust system. A damaged muffler or loose exhaust components can also create excessive noise. Ignoring unusual sounds can lead to further damage and reduced fuel efficiency. If your exhaust sounds off, have it inspected as soon as possible. Check for Visible Rust or Damage Exhaust pipes, mufflers, and hangers are exposed to the elements, making them vulnerable to rust and corrosion. Regularly inspect your exhaust system for rust spots, cracks, or holes. Even small amounts of rust can spread and weaken the system over time. If you notice rust or damage, it’s best to have a professional assess whether a repair or replacement is needed. Catching these issues early can prevent more expensive repairs down the line. Monitor Fuel Efficiency Changes A drop in fuel efficiency can sometimes be linked to an exhaust system problem. If your car is using more gas than usual, a leak in the exhaust system may be affecting engine performance. The catalytic converter also plays a role in fuel efficiency, and if it’s clogged or failing, your gas mileage may suffer. Keeping track of your fuel consumption can help you spot changes early. If you notice a sudden decrease in efficiency, have your exhaust system checked. Watch for a Check Engine Light Many exhaust-related issues will trigger the check engine light. A failing catalytic converter, oxygen sensor malfunction, or exhaust leak can all cause the light to illuminate. While the check engine light can indicate a range of problems, it’s important to get a diagnostic test to determine the exact cause. If your check engine light is on, don’t ignore it. Addressing the issue promptly can prevent further damage to your engine and emissions system. Look for Exhaust Smoke or Unusual Smells Excessive exhaust smoke or unusual odors coming from your car can signal an issue with the exhaust system. White smoke may indicate a coolant leak, blue smoke could mean burning oil, and black smoke often points to an overly rich fuel mixture. If you notice a strong smell of exhaust fumes inside your car, this could be a sign of a dangerous carbon monoxide leak. Inhaling these fumes can be harmful, so if you ever detect a strong exhaust smell in the cabin, roll down your windows and get your car checked immediately. Ensure Exhaust Mounts and Hangers Are Secure The exhaust system is held in place by mounts and hangers that keep the pipes from moving excessively. Over time, these mounts can wear out, leading to loose or sagging exhaust components. A dragging exhaust pipe can cause damage to other parts of your vehicle. Regularly checking and replacing worn-out hangers can prevent costly repairs and keep your exhaust system securely in place. Schedule Routine Inspections and Maintenance Routine inspections by a professional mechanic can catch small issues before they turn into bigger problems. A thorough exhaust system check includes looking for leaks, testing the catalytic converter, and ensuring all components are functioning properly. At Super Service of Corona Hills, our team can inspect and service your exhaust system to keep your vehicle performing at its best. Whether it’s a minor repair or a full replacement, we’ll ensure your car remains safe and efficient. FAQ: Keeping Your Exhaust System Running Strong 1. What are the first signs of exhaust system problems? Early signs include louder-than-normal engine noise, rattling sounds under the vehicle, a noticeable drop in fuel efficiency, or unusual smells. If you spot any of these, it’s a good idea to schedule an inspection. 2. How can rust affect my exhaust system? Rust weakens exhaust pipes, mufflers, and hangers, leading to leaks or even parts breaking off. Regularly checking for rust and addressing it early can prevent serious damage and costly repairs. 3. Does a check engine light always mean an exhaust issue? Not always, but many exhaust-related problems like a failing catalytic converter or oxygen sensor will trigger the check engine light. A diagnostic scan is the best way to find out exactly what’s going on. 4. Why is fuel efficiency linked to the exhaust system? Leaks or blockages in the exhaust system can interfere with your engine’s performance, causing it to burn more fuel. If you notice your car needing more gas than usual, the exhaust system could be to blame. 5. How dangerous are exhaust leaks inside the car? Very dangerous. Exhaust leaks can allow carbon monoxide to enter the cabin, which can be harmful or even deadly. If you ever smell exhaust fumes inside your car, roll down the windows and have it inspected immediately. Keep Your Exhaust System in Top Shape with Super Service of Corona Hills Your exhaust system is a key part of your vehicle’s performance and safety. Regular maintenance can help you avoid costly repairs, improve fuel efficiency, and ensure your car meets emissions standards. If you’ve noticed unusual noises, decreased fuel economy, or a check engine light, don’t wait. Schedule an exhaust system inspection with Super Service of Corona Hills today. Visit us at 2189 Sampson Ave #101a, Corona, CA, or book online at https://www.superserviceofcoronahills.com/
