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The “almost $20 more for a tank tomorrow” claim is from a 2020 Perth price-cycle story, not a current October 2026 forecast. To find today’s cheapest petrol near you, compare the same fuel grade and local area on FuelWatch; tomorrow’s prices are available there from 2:30pm.
What the almost-$20 claim actually means
The West Australian reported in 2020 that some Perth stations would raise ULP by up to 36 cents per litre. Its estimate of an extra $19.80 for a 55-litre tank was the arithmetic for that specific example: 36 cents multiplied by 55 litres. It was not a standing prediction about future price changes.
For October 8, 2026, an indexed FuelRadar comparison showed Perth U91 from 217.3 cents per litre for that day and displayed 224.9 cents per litre in its tomorrow heading. Those figures are a dated third-party snapshot, not a verified citywide cheapest-station ranking or a guarantee of what a particular station will charge. Check FuelWatch for the station, grade and effective date before making a decision.
How to check Perth prices for your area
- Open FuelWatch and search your suburb or postcode.
- Select the fuel type you use, such as U91. Do not compare a price for one grade with a different grade.
- Compare stations that make sense for your location or route, and check the day the displayed price applies.
- Before driving to a station, confirm its listing and price on FuelWatch. A lowest price elsewhere in Perth may not be the cheapest practical stop once distance and your route are considered.
FuelWatch is the Government of Western Australia’s price-comparison service. Its explainer says it lists the cheapest fuel for today and tomorrow, and that the website, email price service and phone service are free.
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#1 Best Overall
wiiyii OBD2 Gauge Display Head Up Display for Cars, Speedometer for Car P6
- SAFE IS THE FIRST----Just focus on your driving, could read speed at a glance with the digital numbers but without having to look down; This unit simply displays directly to you at whatever angle you set it up, no need to make effort to have a look, which may lead to make distractions or even cause accident.
- NEW DRIVING EXPERIENCE----10 kinds interface, free switch, LCD meter, clear fault code, read data stream; 2 install way with adjustable bracket, put on dashboard or stick to windshield, easy operation, non-destructive installation.
- A MUST HAVE----If you don't want your driving record to have points on it or pat hundreds of dollars in speeding tickets; If on a major highway, you really want to know how fast you are going; If your wife get worried and want to see you're not driving so fast as she feels; Or if you would like to solve your problem of never knowing how fast you are going, this speedometer perfectly matches your need.
- DRIVING MORE COMFORTABLE----When driving normally, the ambient light is blue color(automatically adjusts the brightness according to the environment ); when driving abnormally, such as speeding, the ambient light will be changed to Red color for alarming.
- MORE SMOOTH & STABLE----Common meter only has OBD mode, but ours is dual mode: OBD+GPS 2-in-1, the default display OBD+GPS function at the same time, and data display is more abundant. OBD system, can read more than 100 kinds of data in the car. If the vehicle doesn't have OBD2 protocol, only displays GPS function.
When tomorrow’s prices appear
FuelWatch says retailers in most of WA notify next-day prices by 2pm. Tomorrow’s prices become available on FuelWatch from 2:30pm, and a notified price applies from 6am for 24 hours. The service describes its coverage as statewide. For a useful comparison, search the area and fuel type you actually need rather than relying on a Perth-wide headline.
Work out what a price difference means for your tank
To estimate the cost difference for a fill, multiply the difference in cents per litre by the litres you plan to buy, then divide by 100 to convert cents to Australian dollars.
Rank #2
Sale
MH Head Up Display for Car, OBD2+GPS Dual System, OBD2 Gauge Display, GPS Speedometer, Tachometer, Water Temp, Volt, Overspeed Alarm Fault Diagnosis
- Real-Time Driving Data Monitoring – Displays the driving data, such as Speed, Tachomter, Fuel Consumption, Water Temperature, Drive Time, Altitude, Driving mileage, Turbo pressure, Compass, Clock and Voltage, through the computer OBD2 interface of the car ECU. Avoid driver looking down at the instrument during driving
- Fault Diagnosis & Data Analysis – Heads up display scan Fault Code: Scan the car for failure and display fault information. Clear fault code: when the car has fault code display, short press' OK' clear fault code. Scan/clear engine fault codes, read real-time data streams, and perform acceleration/brake tests to monitor vehicle performance
- Dual System Flexibility – Switch between OBD2 (vehicle diagnostics) and GPS (satellite tracking) modes with one device. Fit for cars with OBD2 after 2008. Incompatible car types: diesel, hybrid electric vehicle, pickup truck, RV, computer modified car. Incompatible car brands: for Jeep/ Peugeot /Citroen /Fiat /Renault /DS /Lamborghini /SIMCA /Suzuki
- Multi-Language & Display Customization – 10 kinds interface, free switch, backlight brightness (1-8 levels, 1 is darkest ,8 is brightest), and units (°C/°F, km/mph) for optimal visibility. 2 install way with adjustable bracket, put on dashboard or stick to windshield
- Customizable Alerts & Safety Features – Set alarms for speeding (5-200 km/h), engine temperature (50-200°C), voltage (10.0-15.0V), and RPM (1000-8000) to enhance driving safety
For example, a 10-cent-per-litre difference on 55 litres is $5.50: 10 × 55 ÷ 100. This is a calculation method, not a claim about the current gap between Perth stations. Use live prices for the same grade and relevant day when comparing.
Quick Recap
SaleBestseller No. 2
Best Value
Heads Up Display for Cars, GPS Speedometer, Digital Speedometer for Car
- GPS+Beidou dual-mode chip, plug and play precise positioning: Heads up display for cars HUD simultaneously receives GPS and Beidou satellite signals, making satellite search faster and signal more stable. Real time calibration of vehicle speed, time, and direction data, without the need for complex installation, can automatically work by inserting the car USB interface.
- 2.Head up display, safer without looking down: The car head up display directly projects driving data clearly in front of the windshield, with information such as vehicle speed, driving time, driving distance, satellite clock, etc. at a glance, reducing line of sight deviation and improving night and long-distance driving safety.
- Integrated light shield+fully automatic light sensing, day night adaptive: The speedometer comes with a light shield that effectively isolates excess reflections from the dashboard. Coupled with a high-sensitivity automatic light sensing hole, the brightness is automatically increased during the day to make it clear and visible, and automatically reduced at night to avoid glare. There is no need for manual adjustment throughout the entire process.
- Three levels of multi-stage speeding alarm to avoid accidental fines: Speedometer for car supports setting three different speed alarm values (such as 120/150/180 km/h) simultaneously, corresponding to different speed limit requirements on different road sections. Immediately issue a warning when speeding to help maintain a safe speed and reduce the risk of violations.
- Multi functional buttons, flexible setting and adjustment: The digital speedometer for car body buttons can easily switch speed units (MPH/KM/H), manually adjust speed deviation, set three levels of alarm values, adjust time zone and screen brightness levels, and meet personalized driving needs.
Rank #4
KONNWEI KW206 Car OBD2 HUD Digital Meter Gauge All in One Automotive Trip Computer Smart OBD Speedometer Water Temperature Fuel Pressure Tester for All 2003 and Newer Cars
- ALL IN ONE OBD2 GAUGES ➤ KW206 Car OBD2 HUD display is the combination of automotive trip computer gauge and diagnostic scan gauge. Not only it can display up to hundreds of real-time engine parameters in its digital 3.5’’ color screen like speedometer, RPM, water coolant temperature, fuel consumption, total mile ... but also can read engine fault codes and turn off the check engine light. Perfect household tool and present for daily use! NEW REPLACEMENT AVAILABLE FOR ANY QUALITY ISSUE.
- PROFESSIONAL OBD2 SCANNER ➤ the KW206 car hud is newly designed as an enhanced HUD display and car diagnostic scanner, it’s a smart OBD2 gauge for car owners to quickly read and erase DTC (engine fault codes) and check Live Data Stream which can help you to accurately identify the cause of your CHECK ENGINE LIGHT and perhaps fix it without going to see your dealer.
- SAFETY DRIVING HUD ➤ the KW206 is an upgraded version of car Head-Up Display with its high updating rate, warning systems and more. Accessing data directly from car computer and display it in a large digital 3.5in color LCD, avoid accident happening when you’re driving with head down. Besides, 4 parameters alarm including RPM, VSS Speed, ECT (Engine Coolant Temp), Voltage can be set to help you reducing over-speed risk and tickets, developing a good driving habit and safety.
- UNIVERSAL COMPATIBILITY ➤ Works on all 2003 or newer OBDII certified gas/diesel engine cars, SUVs, Light Trucks, including J1850/CAN/ EOBD protocols vehicles. Simply plug into car's OBDII Port, it will get power on automatically and follow the on-screen instruction to go. On Top 4-buttons operation allows you quickly and easily access the powerful features of the KW206 Digital Meter Gauge.
- EXTRA FEATURES ➤ KONNWEI KW206 supports the unit switch from metric to imperial like KM-Mile, auto-adjust screen brightness, fast data transmission rate, 0-100 speed-up test. Also it supports lifetime software update to fix any possible issue; You can leave obd2 gauges stay in the car without unplugging, KW206 will automatically enter sleep mode when engine off, power on while detecting the ignition. Definitely it’s an essential OBD2 digital gauge for every car owner.
Rank #3
JAFOWSEY OBD2 Speedometer Gauge Display All in One 2 Mode for Gas Car 2008+
- 【Real‑Time Data & Dual‑Mode】 This obd2 speedometer connects via the OBD2 port to display speed, RPM, fuel consumption, water temp, volt, oil temperature, altitude, mileage, time, and over 100 other vehicle data parameters. It offers both OBD2 and GPS modes – after powering on the obd2 gauge display, simply select your preferred mode and the device starts working immediately. This speedometer for car keeps every critical parameter visible at a glance, making driving safer and more informed.
- 【Customizable Display & Auto Brightness】 Choose from 10 interface styles and 8 brightness levels. The built‑in light sensor automatically adjusts brightness to ambient conditions, ensuring clear visibility day or night. This obd2 gauge display offers a glare‑free, eye‑friendly screen that reduces strain during long trips. With full customization, this speedometer for car delivers perfect readability in any environment, keeping your eyes on the road.
- 【Custom Alerts & Multi‑Language Support】Set personalized warnings for speeding (5‑200 km/h), engine temp (50‑200°C), volt (10‑15V), and RPM (1000‑8000). When a limit is exceeded, the ambient light of obd2 speedometer turns red and an alarm sounds, immediately alerting you. This digital speedometer for car supports multi‑languages: English, Spanish, Russian, JP, etc. These alerts help prevent tickets, overheating, and battery failure, while the language options make it accessible for drivers.
- 【Fault Diagnosis & Performance Testing】 This obd2 gauge display scans engine fault codes and shows them clearly. Press ‘OK’ to clear the codes and turn off the warning light. It also reads real‑time data streams from multiple sensors and performs acceleration/brake tests to evaluate vehicle response. With these tools, you can detect issues early and ensure your engine runs smoothly. This speedometer for car gives you professional‑grade insight without visiting a mechanic, saving time and money.
- 【Easy Installation】 Install this obd2 speedometer in minutes – connect the OBD cable, mount the digital speedometer for car on the dashboard or windshield using the adjustable bracket and adhesive pads (included). The package also contains a pry tool and manual. If your vehicle does not support OBD2, you can manually switch to GPS mode, which works with all cars, providing speed, altitude, satellite time, number of satellites, driving direction, single mileage, and acceleration/brake data.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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