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URLhttps://www.nbcsandiego.com/news/national-international/gas-prices-rising-saving-tips/3991112/
Last Crawled2026-04-13 12:12:15 (3 days ago)
First Indexed2026-03-06 18:25:55 (1 month ago)
HTTP Status Code200
Meta TitleGas saving tips: Finding the best prices and best days to fill up – NBC 7 San Diego
Meta DescriptionAs the war drags on, the cost to fill up your tank could be even higher. Here are some tips to help stretch your dollar.
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Gas prices have soared to levels not seen in more than a year as war engulfed the Middle East and shipments of oil and gas were stranded in the Persian Gulf. As of March 17, the cost of regular was up about $0.87 on average from three weeks earlier — the biggest jump since March 2022, when gas prices rose $0.60 in one week after Russia invaded Ukraine. Gasoline prices were already rising before the U.S. launched strikes on Iran as refiners switch over to summer blends of fuel. But crude prices have risen sharply because of the war. The U.S.-Israel conflict with Iran has halted shipments of oil and gas through the strategically vital Strait of Hormuz, where about 20% of global oil shipments normally travel through. As the war drags on, the cost to fill up your tank could be even higher. Here are some tips to help stretch your dollar: Finding the best prices There are several apps available to help comparison shop for gas no matter where you are. GasBuddy has an app and an  interactive map on their website  to help drivers find nearby gas stations and offer price information for regular, mid-grade and premium. You can search by city or zip code. The app is available to download on the Apple App store and on Google Play. AAA's navigation app TripTik also displays gas stations and latest per-gallon pump rates along your route. The app is available on the Apple App store and on Google Play. Other commonly used navigation apps like Waze and Google Maps have gas station finder features that displays fuel prices. Google Maps users can also switch on the app’s eco-friendly route feature, which recommends more fuel-efficient paths that minimize hills and stop-and-go traffic patterns, which can gobble up gas.  That depends. According to AAA , Mondays are often the cheapest day of the week to fill up your tank, followed by Fridays. Wednesdays, Thursdays, and Saturdays are historically the costliest.  However, GasBuddy analyzed statewide rates over the past year and found that Sunday is the best day to fill up in most states, while the worst day varies from state to state. Membership discounts Warehouse clubs and retailers like Walmart, Costco and Amazon all offer special discounts for members to save money on gas. Walmart Plus' annual membership includes fuel savings of up to 10 cents per gallon at more than 13,000 stations at Walmart, Sam’s Club, Murphy Express and ExxonMobil sites. Amazon Prime members get 10 cents off per gallon at more than 7,500 Amoco, AM/PM and BP gas stations across the country. To receive the discount, members must sign up for  BP's free Earnify rewards program , which works at all three BP-owned gas station brands. Costco members can receive generous discounts on fuel. The exact amount varies by location, but range from five cents to 25 cents per gallon on average. How to improve your mileage There are steps you can take to make your car, truck or SUV perform better or go farther — even if it's an older model — and perhaps save some money on fuel: Keeping Your Tires Properly Inflated   Make sure there’s enough air in the tires. Underinflated tires create more rolling resistance with the pavement, thereby reducing gas mileage. Inflate your tires to the pressure recommended on the inside of your driver’s side door. Check them periodically with a tire pressure gauge. “Typically, your gas mileage is going to be impacted by about 5% to 10% if you don’t have proper inflation,” said David Bennett, manager of repair systems for AAA. But don’t over-inflate. Doing so could cause tires to wear out more quickly. Making Sure Fluids and Filters Are Changed Properly maintain your vehicle. Follow the manufacturer’s recommendations for oil and other fluid changes and for replacing air and other filters. Replacing spark plugs at the proper intervals can help, too. “The vehicle is going to operate at its peak efficiency” with good maintenance, Bennett said. It will cost between $235 and $289 for new spark plugs on, say, a 10-year-old Ford F-150 pickup with a 4.6-liter V8, according to Repairpal.com. Watch Your Speed AAA says fuel economy peaks around 50 miles per hour on most vehicles, then drops as speed rises. Reducing highway speeds by 5 mph (8 kilometers per hour) to 10 mph improves gas mileage by up to 14%. Coasting to stop lights also helps. Time your travel to keep rolling and avoid unnecessary stops. Cars consume a lot of fuel to get moving from a dead stop. Plan Your Trip in Advance   Try to minimize backtracking. Do multiple tasks on each trip. Avoid rush hours and other peak travel times. Don't Idle Too Much   An engine burns one-quarter to a half-gallon (1.9 liters) of gas per hour when idling, but a warm engine needs only around 10 seconds worth of fuel to restart, according to AAA. So when safely possible, shut your engine off if you’ll be stopped for more than a minute. Many new vehicles do this on their own. Bennett says owners shouldn’t disable their new “stop-start” system. "Top Tier" Gas Fill up with gasoline designated as “Top Tier.” Oil companies put additives in Top Tier gas that cuts carbon deposits. “As you start getting carbon buildup, the vehicle will not be running as efficiently,” Bennett said. Gasoline brands with the additives have stickers on the pumps. They can be found at  here . With gas prices on the rise across the Bay Area, some people have started to think about getting an EV. Consumer Investigator Chris Chmura explains what buyers need to know before taking the step.
Markdown
[Skip to content](https://www.nbcsandiego.com/news/national-international/gas-prices-rising-saving-tips/3991112/#content) [![NBC 7 San Diego](https://media.nbcsandiego.com/2024/08/KNSD_station_logo_dark.png?fit=240%2C58&quality=85&strip=all&w=166&h=40)](https://www.nbcsandiego.com/) Main Navigation Search [Local](https://www.nbcsandiego.com/news/local/) [Weather](https://www.nbcsandiego.com/weather/) [Traffic](https://www.nbcsandiego.com/traffic/) [Politically Speaking](https://www.nbcsandiego.com/news/politics/politically-speaking/) [Sports](https://www.nbcsandiego.com/news/sports/) [In Your Neighborhood](https://www.nbcsandiego.com/news/local/inyourneighborhood/) [Submit Photos](https://www.nbcsandiego.com/ugc/) [Entertainment](https://www.nbcsandiego.com/entertainment/entertainment-news/) [Watch 24/7](https://www.nbcsandiego.com/watch/) [Create profile / Log in](https://www.nbcsandiego.com/news/national-international/gas-prices-rising-saving-tips/3991112/) [Dashboard](https://www.nbcsandiego.com/account/) [Email preferences](https://www.nbcsandiego.com/news/national-international/gas-prices-rising-saving-tips/3991112/) [Sign out](https://www.nbcsandiego.com/news/national-international/gas-prices-rising-saving-tips/3991112/) Trending [Attack on Iran](https://www.nbcsandiego.com/tag/iran/) [✏ Newsletters](https://www.nbcsandiego.com/newsletters/) [📺 How to stream NBC 7 news 24/7](https://www.nbcsandiego.com/news/local/how-to-watch-san-diego-news-weather-live-free/3614885/) [📚Local Impact Grants](https://www.nbcsandiego.com/community/nbc-7-telemundo-20-accepting-applications-for-nbcuniversal-local-impact-grants-3/3999421/) [🎧 News Podcast](https://www.nbcsandiego.com/news/local/nbc-7-launches-today-in-san-diego-a-daily-morning-news-podcast/2232274/) [🎥 NBC7 on YouTube](https://www.youtube.com/@nbcsandiego/) [🔎 I-team tips](https://www.nbcsandiego.com/investigations/submit-tip/) [📸 Submit photos](https://www.nbcsandiego.com/ugc/) Expand ![](https://media.nbcsandiego.com/2019/09/NBCOTS_Sandiego_Greyscale-e1586553184308.png?fit=1920%2C1281&quality=85&strip=all&w=400&h=44&crop=1) [Oil & Gas](https://www.nbcsandiego.com/tag/oil-gas/) # Gas prices are going up. Here's how you can save money at the pump ## From apps that track pump rates to membership discounts, here are some tips to help you stretch you dollar as gas prices soar. #### By [Danielle Abreu](https://www.nbcsandiego.com/author/danielle-abreu/) • Published March 6, 2026 • Updated on March 17, 2026 at 10:13 am BOOKMARKER NBCUniversal, Inc. Worried about gas prices? Here are tips on how to improve your gas mileage while on the road. Gas prices have soared to levels not seen in more than a year as war engulfed the Middle East and shipments of oil and gas were stranded in the Persian Gulf. As of March 17, the cost of regular was up about \$0.87 on average from three weeks earlier — the biggest jump since March 2022, when gas prices rose \$0.60 in one week after Russia invaded Ukraine. Gasoline prices were already rising before the U.S. launched strikes on Iran as refiners switch over to summer blends of fuel. But crude prices have risen sharply because of the war. Stream San Diego News for free, 24/7, wherever you are with NBC 7. [![Watch button](https://media.nbcnewyork.com/assets/editorial/national/images/cta-eye-icon-white.png) WATCH HERE](https://www.nbcsandiego.com/watch/) The U.S.-Israel conflict with Iran has halted shipments of oil and gas through the strategically vital Strait of Hormuz, where about 20% of global oil shipments normally travel through. As the war drags on, the cost to fill up your tank could be even higher. Here are some tips to help stretch your dollar: ## Finding the best prices There are several apps available to help comparison shop for gas no matter where you are. [GasBuddy has an app](https://www.gasbuddy.com/) and an **[interactive map on their website](https://tracker.gasbuddy.com/)** to help drivers find nearby gas stations and offer price information for regular, mid-grade and premium. You can search by city or zip code. The app is available to download on the [Apple App store](https://apps.apple.com/us/app/gasbuddy-find-cheap-gas-prices/id406719683?mt=8) and on [Google Play.](https://play.google.com/store/apps/details?id=gbis.gbandroid) AAA's navigation app TripTik also displays gas stations and latest per-gallon pump rates along your route. The app is available on the [Apple App store](https://apps.apple.com/us/app/aaa-mobile/id310730297) and on [Google Play.](https://play.google.com/store/apps/details?id=com.aaa.android.discounts&hl=en_US) Other commonly used navigation apps like Waze and Google Maps have gas station finder features that displays fuel prices. Google Maps users can also switch on the app’s eco-friendly route feature, which recommends more fuel-efficient paths that minimize hills and stop-and-go traffic patterns, which can gobble up gas. ## Is it cheaper to fill up on certain days of the week? That depends. [According to AAA](https://cluballiance.aaa.com/the-extra-mile/advice/car/easy-ways-to-save-money-on-gas), Mondays are often the cheapest day of the week to fill up your tank, followed by Fridays. Wednesdays, Thursdays, and Saturdays are historically the costliest. However, GasBuddy analyzed statewide rates over the past year and found that Sunday is the best day to fill up in most states, while the worst day varies from state to state. ![ ](https://media.nbcsandiego.com/2026/03/gasbuddy-day-of-week.png?resize=218%2C123&quality=85&strip=all) ## Membership discounts Warehouse clubs and retailers like Walmart, Costco and Amazon all offer special discounts for members to save money on gas. [Walmart Plus' annual membership](https://www.walmart.com/plus?gclsrc=aw.ds&&adid=22222222220457097451&wmlspartner=wmtlabs-rv&wl0=b&wl1=g&wl2=c&wl3=759965396530&wl4=kwd-350605287799&wl5=9028724&wl6=&wl7=&wl8=&veh=sem&cn=20430325626&sourceid=default&gclsrc=aw.ds&utm_adgid=153228758818&utm_term=walmart%20student%20discount&utm_devicemdl=&ui_adid=759965396530&gad_source=1&gad_campaignid=20430325626&gbraid=0AAAAADmfBIo9Enhyek4jw232Crf532muG&gclid=Cj0KCQiAk6rNBhCxARIsAN5mQLt9O-l4oghARv3PJPoJiTYS5rGhBm1H00eRGIroOcwQWQ2GE_xWkHQaAu5aEALw_wcB) includes fuel savings of up to 10 cents per gallon at more than 13,000 stations at Walmart, Sam’s Club, Murphy Express and ExxonMobil sites. Amazon Prime members get 10 cents off per gallon at more than 7,500 Amoco, AM/PM and BP gas stations across the country. To receive the discount, members must sign up for [BP's free Earnify rewards program](https://www.bp.com/en_us/united-states/home/products-and-services/earnify.html), which works at all three BP-owned gas station brands. Costco members can receive generous discounts on fuel. The exact amount varies by location, but range from five cents to 25 cents per gallon on average. ### [![](https://media.nbcsandiego.com/2026/03/AP26070603383415.jpg?quality=85&strip=all)](https://www.nbcsandiego.com/news/national-international/electric-vehicle-iran-war-gas-prices/3993923/) [Oil & Gas](https://www.nbcsandiego.com/tag/oil-gas/) Mar 12 ### [As war spikes gas prices, will switching to an EV save you money? What to know](https://www.nbcsandiego.com/news/national-international/electric-vehicle-iran-war-gas-prices/3993923/) [![](https://media.nbcsandiego.com/2026/03/image-37-4.jpg?quality=85&strip=all)](https://www.nbcsandiego.com/news/national-international/energy-secretary-americans-relief-gas-prices-few-weeks/3995120/) [Iran](https://www.nbcsandiego.com/tag/iran/) Mar 15 ### [Energy secretary says Americans could feel relief on gas prices ‘in a few more weeks'](https://www.nbcsandiego.com/news/national-international/energy-secretary-americans-relief-gas-prices-few-weeks/3995120/) ## How to improve your mileage There are steps you can take to make your car, truck or SUV perform better or go farther — even if it's an older model — and perhaps save some money on fuel: **Keeping Your Tires Properly Inflated** Make sure there’s enough air in the tires. Underinflated tires create more rolling resistance with the pavement, thereby reducing gas mileage. Inflate your tires to the pressure recommended on the inside of your driver’s side door. Check them periodically with a tire pressure gauge. “Typically, your gas mileage is going to be impacted by about 5% to 10% if you don’t have proper inflation,” said David Bennett, manager of repair systems for AAA. But don’t over-inflate. Doing so could cause tires to wear out more quickly. **Making Sure Fluids and Filters Are Changed** Properly maintain your vehicle. Follow the manufacturer’s recommendations for oil and other fluid changes and for replacing air and other filters. Replacing spark plugs at the proper intervals can help, too. “The vehicle is going to operate at its peak efficiency” with good maintenance, Bennett said. It will cost between \$235 and \$289 for new spark plugs on, say, a 10-year-old Ford F-150 pickup with a 4.6-liter V8, according to Repairpal.com. **Watch Your Speed** AAA says fuel economy peaks around 50 miles per hour on most vehicles, then drops as speed rises. Reducing highway speeds by 5 mph (8 kilometers per hour) to 10 mph improves gas mileage by up to 14%. Coasting to stop lights also helps. Time your travel to keep rolling and avoid unnecessary stops. Cars consume a lot of fuel to get moving from a dead stop. **Plan Your Trip in Advance** Try to minimize backtracking. Do multiple tasks on each trip. Avoid rush hours and other peak travel times. **Don't Idle Too Much** An engine burns one-quarter to a half-gallon (1.9 liters) of gas per hour when idling, but a warm engine needs only around 10 seconds worth of fuel to restart, according to AAA. So when safely possible, shut your engine off if you’ll be stopped for more than a minute. Many new vehicles do this on their own. Bennett says owners shouldn’t disable their new “stop-start” system. **"Top Tier" Gas** Fill up with gasoline designated as “Top Tier.” Oil companies put additives in Top Tier gas that cuts carbon deposits. “As you start getting carbon buildup, the vehicle will not be running as efficiently,” Bennett said. Gasoline brands with the additives have stickers on the pumps. They can be found at [here](https://toptiergas.com/licensed-brands/). With gas prices on the rise across the Bay Area, some people have started to think about getting an EV. Consumer Investigator Chris Chmura explains what buyers need to know before taking the step. #### This article tagged under: [Oil & Gas](https://www.nbcsandiego.com/tag/oil-gas/) [![](https://media.nbcsandiego.com/2024/04/SanDiego-web@3x.png?fit=706%2C72&quality=85&strip=all) ![](https://nbcu.tmsimg.com/assets/p26823938_b_h10_aa.jpg?w=960&h=540) on now Live: NBC7 News Today @ 5AM](https://www.nbcsandiego.com/watch/) ### Trending Stories - [![La Mesa coffee shop workers say they walked out after month without pay](https://media.nbcsandiego.com/2026/04/la-mesa-coffeeshop-wage-theft.jpg?quality=85&strip=all&resize=100%2C56)](https://www.nbcsandiego.com/news/local/la-mesa-coffee-shop-workers-walk-out-work-month-without-pay/4008089/) #### [La Mesa](https://www.nbcsandiego.com/tag/la-mesa/) [La Mesa coffee shop workers say they walked out after month without pay](https://www.nbcsandiego.com/news/local/la-mesa-coffee-shop-workers-walk-out-work-month-without-pay/4008089/) - [![3 child-abuse suspects arrested after drugs found in Spring Valley home: Sheriff's Dept.](https://media.nbcsandiego.com/2020/11/sdso-san-diego-sheriffs-generic-image-logo.jpg?quality=85&strip=all&resize=100%2C56)](https://www.nbcsandiego.com/news/local/3-child-abuse-suspects-arrested-after-drugs-found-in-spring-valley-home-sheriffs-dept/4008364/) #### [Spring Valley](https://www.nbcsandiego.com/tag/spring-valley/) [3 child-abuse suspects arrested after drugs found in Spring Valley home: Sheriff's Dept.](https://www.nbcsandiego.com/news/local/3-child-abuse-suspects-arrested-after-drugs-found-in-spring-valley-home-sheriffs-dept/4008364/) - [![Fiery crash prompts SigAlert on SR-54 in Bonita](https://media.nbcsandiego.com/2026/04/CRASH.jpg?quality=85&strip=all&resize=100%2C56)](https://www.nbcsandiego.com/news/local/fiery-crash-prompts-sigalert-sr-54-in-bonita/4008831/) #### [Traffic](https://www.nbcsandiego.com/tag/traffic/) [Fiery crash prompts SigAlert on SR-54 in Bonita](https://www.nbcsandiego.com/news/local/fiery-crash-prompts-sigalert-sr-54-in-bonita/4008831/) - [![Santee business owner arrested for allegedly threatening deputies](https://media.nbcsandiego.com/2023/04/San-Diego-county-sheriffs-department-SDSO-generic.png?resize=100%2C56&quality=85&strip=all)](https://www.nbcsandiego.com/news/local/santee-business-owner-arrested-allegedly-threatening-deputies/4009146/) #### [Santee](https://www.nbcsandiego.com/tag/santee/) [Santee business owner arrested for allegedly threatening deputies](https://www.nbcsandiego.com/news/local/santee-business-owner-arrested-allegedly-threatening-deputies/4009146/) - [![Person struck on head with broken wooden stick in Downtown San Diego: SDPD](https://media.nbcsandiego.com/2026/04/STABBING-LOCATOR.jpg?quality=85&strip=all&resize=100%2C56)](https://www.nbcsandiego.com/news/local/person-stabbed-head-downtown-san-diego/4009160/) #### [Downtown San Diego](https://www.nbcsandiego.com/tag/downtown-san-diego/) [Person struck on head with broken wooden stick in Downtown San Diego: SDPD](https://www.nbcsandiego.com/news/local/person-stabbed-head-downtown-san-diego/4009160/) ### Weather Forecast [![NBC 7 San Diego](https://media.nbcsandiego.com/2024/08/KNSD_station_logo_light.png?fit=240%2C58&quality=85&strip=all)](https://www.nbcsandiego.com/) - 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Readable Markdown
Gas prices have soared to levels not seen in more than a year as war engulfed the Middle East and shipments of oil and gas were stranded in the Persian Gulf. As of March 17, the cost of regular was up about \$0.87 on average from three weeks earlier — the biggest jump since March 2022, when gas prices rose \$0.60 in one week after Russia invaded Ukraine. Gasoline prices were already rising before the U.S. launched strikes on Iran as refiners switch over to summer blends of fuel. But crude prices have risen sharply because of the war. The U.S.-Israel conflict with Iran has halted shipments of oil and gas through the strategically vital Strait of Hormuz, where about 20% of global oil shipments normally travel through. As the war drags on, the cost to fill up your tank could be even higher. Here are some tips to help stretch your dollar: ## Finding the best prices There are several apps available to help comparison shop for gas no matter where you are. [GasBuddy has an app](https://www.gasbuddy.com/) and an **[interactive map on their website](https://tracker.gasbuddy.com/)** to help drivers find nearby gas stations and offer price information for regular, mid-grade and premium. You can search by city or zip code. The app is available to download on the [Apple App store](https://apps.apple.com/us/app/gasbuddy-find-cheap-gas-prices/id406719683?mt=8) and on [Google Play.](https://play.google.com/store/apps/details?id=gbis.gbandroid) AAA's navigation app TripTik also displays gas stations and latest per-gallon pump rates along your route. The app is available on the [Apple App store](https://apps.apple.com/us/app/aaa-mobile/id310730297) and on [Google Play.](https://play.google.com/store/apps/details?id=com.aaa.android.discounts&hl=en_US) Other commonly used navigation apps like Waze and Google Maps have gas station finder features that displays fuel prices. Google Maps users can also switch on the app’s eco-friendly route feature, which recommends more fuel-efficient paths that minimize hills and stop-and-go traffic patterns, which can gobble up gas. That depends. [According to AAA](https://cluballiance.aaa.com/the-extra-mile/advice/car/easy-ways-to-save-money-on-gas), Mondays are often the cheapest day of the week to fill up your tank, followed by Fridays. Wednesdays, Thursdays, and Saturdays are historically the costliest. However, GasBuddy analyzed statewide rates over the past year and found that Sunday is the best day to fill up in most states, while the worst day varies from state to state. ![ ](https://media.nbcsandiego.com/2026/03/gasbuddy-day-of-week.png?resize=218%2C123&quality=85&strip=all) ## Membership discounts Warehouse clubs and retailers like Walmart, Costco and Amazon all offer special discounts for members to save money on gas. [Walmart Plus' annual membership](https://www.walmart.com/plus?gclsrc=aw.ds&&adid=22222222220457097451&wmlspartner=wmtlabs-rv&wl0=b&wl1=g&wl2=c&wl3=759965396530&wl4=kwd-350605287799&wl5=9028724&wl6=&wl7=&wl8=&veh=sem&cn=20430325626&sourceid=default&gclsrc=aw.ds&utm_adgid=153228758818&utm_term=walmart%20student%20discount&utm_devicemdl=&ui_adid=759965396530&gad_source=1&gad_campaignid=20430325626&gbraid=0AAAAADmfBIo9Enhyek4jw232Crf532muG&gclid=Cj0KCQiAk6rNBhCxARIsAN5mQLt9O-l4oghARv3PJPoJiTYS5rGhBm1H00eRGIroOcwQWQ2GE_xWkHQaAu5aEALw_wcB) includes fuel savings of up to 10 cents per gallon at more than 13,000 stations at Walmart, Sam’s Club, Murphy Express and ExxonMobil sites. Amazon Prime members get 10 cents off per gallon at more than 7,500 Amoco, AM/PM and BP gas stations across the country. To receive the discount, members must sign up for [BP's free Earnify rewards program](https://www.bp.com/en_us/united-states/home/products-and-services/earnify.html), which works at all three BP-owned gas station brands. Costco members can receive generous discounts on fuel. The exact amount varies by location, but range from five cents to 25 cents per gallon on average. [![](https://media.nbcsandiego.com/2026/03/AP26070603383415.jpg?quality=85&strip=all)](https://www.nbcsandiego.com/news/national-international/electric-vehicle-iran-war-gas-prices/3993923/) [![](https://media.nbcsandiego.com/2026/03/image-37-4.jpg?quality=85&strip=all)](https://www.nbcsandiego.com/news/national-international/energy-secretary-americans-relief-gas-prices-few-weeks/3995120/) ## How to improve your mileage There are steps you can take to make your car, truck or SUV perform better or go farther — even if it's an older model — and perhaps save some money on fuel: **Keeping Your Tires Properly Inflated** Make sure there’s enough air in the tires. Underinflated tires create more rolling resistance with the pavement, thereby reducing gas mileage. Inflate your tires to the pressure recommended on the inside of your driver’s side door. Check them periodically with a tire pressure gauge. “Typically, your gas mileage is going to be impacted by about 5% to 10% if you don’t have proper inflation,” said David Bennett, manager of repair systems for AAA. But don’t over-inflate. Doing so could cause tires to wear out more quickly. **Making Sure Fluids and Filters Are Changed** Properly maintain your vehicle. Follow the manufacturer’s recommendations for oil and other fluid changes and for replacing air and other filters. Replacing spark plugs at the proper intervals can help, too. “The vehicle is going to operate at its peak efficiency” with good maintenance, Bennett said. It will cost between \$235 and \$289 for new spark plugs on, say, a 10-year-old Ford F-150 pickup with a 4.6-liter V8, according to Repairpal.com. **Watch Your Speed** AAA says fuel economy peaks around 50 miles per hour on most vehicles, then drops as speed rises. Reducing highway speeds by 5 mph (8 kilometers per hour) to 10 mph improves gas mileage by up to 14%. Coasting to stop lights also helps. Time your travel to keep rolling and avoid unnecessary stops. Cars consume a lot of fuel to get moving from a dead stop. **Plan Your Trip in Advance** Try to minimize backtracking. Do multiple tasks on each trip. Avoid rush hours and other peak travel times. **Don't Idle Too Much** An engine burns one-quarter to a half-gallon (1.9 liters) of gas per hour when idling, but a warm engine needs only around 10 seconds worth of fuel to restart, according to AAA. So when safely possible, shut your engine off if you’ll be stopped for more than a minute. Many new vehicles do this on their own. Bennett says owners shouldn’t disable their new “stop-start” system. **"Top Tier" Gas** Fill up with gasoline designated as “Top Tier.” Oil companies put additives in Top Tier gas that cuts carbon deposits. “As you start getting carbon buildup, the vehicle will not be running as efficiently,” Bennett said. Gasoline brands with the additives have stickers on the pumps. They can be found at [here](https://toptiergas.com/licensed-brands/). With gas prices on the rise across the Bay Area, some people have started to think about getting an EV. Consumer Investigator Chris Chmura explains what buyers need to know before taking the step.
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