Katerina Swanson
The fuel tank capacity of a car is an important consideration for any prospective buyer. The Chevrolet Corvette C7 is a powerful car, but how does its fuel economy stack up? With two fuel tanks, a left and a right, the C7 has a fuel capacity of 18.5 gallons. The left-hand tank contains the electric fuel pump that supplies fuel to the engine, while the right-hand tank has a pump to transfer fuel to the left tank. This unique fuel system design has been a topic of discussion among Corvette enthusiasts, with some concerns about the accuracy of the fuel gauge and the potential for the fuel gauge to read empty intermittently. While fuel efficiency may vary depending on driving conditions and style, owners report fuel efficiency ranging from 8-15 mpg on the highway to 18-22 mpg in city driving.
| Characteristics | Values |
|---|---|
| Fuel tank capacity | 18.5 gallons |
| Engine | LT1 6.2-liter V8 |
| Horsepower | 455 |
| Torque | 460 lb-ft |
| Acceleration (0-60 mph) | 3.8 seconds |
| Top speed | Not found |
| Fuel efficiency | 18-24 mpg |
| Transmission | 7-Speed Manual or 8-Speed Paddle Shift Automatic |
| Special editions | Grand Sport, ZR1, Z06 |
| Years | 2014-2019 |
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What You'll Learn
The C7 Corvette has two fuel tanks
The C7 Corvette's fuel system is designed to provide an accurate reading of the fuel level. When the car is started, the system reads the fuel level in both tanks. As the car runs, fuel is transferred from the right to the left tank, resulting in a change in fuel levels that triggers the system to estimate the fuel level, often indicating more fuel than when the car was first started. This sophisticated fuel management system ensures that the Corvette has access to the necessary fuel reserves for optimal performance.
The fuel economy of the C7 Corvette varies depending on driving conditions and styles. On average, highway driving yields around 20-32 miles per gallon, while city driving offers 18-22 miles per gallon. However, individual experiences may vary based on factors such as speed and driving behaviour. Some owners have reported fuel efficiency of 23-24 miles per gallon on highways and an average of 21.63 miles per gallon for a mix of highway and city driving.
The C7 Corvette's fuel system design showcases an innovative approach to fuel management, combining dual fuel tanks with a sophisticated siphoning mechanism. This system not only ensures a steady fuel supply but also contributes to the vehicle's overall performance and efficiency. While fuel economy considerations are essential, the Corvette's powerful performance and aerodynamic design remain key attractions for enthusiasts.
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The fuel tank capacity is 18.5 gallons
The fuel tank capacity of a C7 Corvette is 18.5 gallons. This is an important detail to know, as running out of fuel can cause issues for the Corvette's fuel pump. The fuel pump is located inside the tank, and without fuel to cool it, it can rapidly burn itself out.
The C7 Corvette has two fuel tanks, a left-hand tank, and a right-hand tank. The left-hand tank contains the electric fuel pump that supplies fuel to the engine. The right-hand tank has a siphoning device that transfers fuel to the left-hand tank. This system can cause fluctuations in the fuel gauge reading, sometimes indicating more or less fuel than is actually in the tanks.
Fuel efficiency for the C7 Corvette can vary depending on driving conditions and style. On average, highway driving tends to yield higher miles per gallon (mpg), with estimates ranging from 8 to 32 mpg. City driving typically results in lower mpg, with estimates ranging from 18 to 20 mpg.
It's worth noting that aggressive driving or high speeds can significantly impact fuel efficiency, causing the tank to deplete more rapidly. Some owners have reported that their C7 Corvette gets around 18-24 mpg on average, with fuel economy being a lesser concern compared to performance.
In summary, while the C7 Corvette's fuel tank capacity is 18.5 gallons, the actual mileage may vary based on driving conditions and style. Efficient highway cruising can result in higher mpg, while city driving or spirited acceleration can lower mpg. Maintaining fuel levels is crucial to prevent issues with the fuel pump, and owners should be mindful of the two-tank system's impact on fuel gauge accuracy.
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Fuel efficiency: 23-24 mpg on the highway
The C7 Corvette has a fuel tank capacity of 18.5 gallons. Its fuel efficiency is estimated to be 23-24 mpg on the highway. This is based on a variety of factors, including driving style and speed.
One owner of a C7 Corvette reported achieving 23-24 mpg on highway drives. This is in line with the estimates and demonstrates the vehicle's fuel efficiency when driven at a consistent speed on open roads.
However, fuel efficiency can vary depending on driving habits and conditions. For example, city driving typically results in lower mpg due to frequent stops and acceleration. One C7 owner reported achieving around 18-22 mpg in city driving, which is significantly lower than their highway mileage.
Additionally, aggressive driving and high speeds can also impact fuel efficiency. A driver who consistently drove at speeds over 150 mph reported lower mpg, even on highway trips.
It's important to note that the C5, 6, and 7 Corvettes have a unique fuel system with two fuel tanks, a left-hand tank, and a right-hand tank. This system can affect the accuracy of the fuel gauge and how the vehicle estimates fuel levels.
Overall, while the C7 Corvette offers decent fuel efficiency on the highway, actual mileage may vary depending on driving habits, speed, and other factors.
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Fuel gauge accuracy issues
The fuel tank capacity of a C7 Corvette is 18.5 gallons. However, some users have reported issues with the fuel gauge accuracy, with the gauge showing incorrect fuel levels or dropping to zero despite a full tank. This issue appears to be related to the fuel sensor system, which, in the Corvette, consists of two sensors, one in each tank. If these sensors fall out of calibration with each other, it can cause a fault in the system, leading to incorrect fuel gauge readings.
Some users have suggested using a fuel system cleaner, such as Techron or GM Fuel System Treatment Plus, as a possible solution to this issue. Others have recommended always using Top Tier gas and trying to keep more than half a tank of gasoline to prevent corrosion. In some cases, the sending unit may need to be replaced, which can be a time-consuming and expensive process, as the fuel tank and transmission may need to be removed for the repair.
One user reported that after their fuel gauge dropped to zero and the check engine light came on, they took their vehicle to a dealer for diagnosis and repair. The dealer quoted them $175 for the diagnosis and estimated that the repair would cost just over $4,000. The user expressed frustration with the design of the C7, which requires the removal of most of the drivetrain and rear axle before the fuel tanks can be accessed for repair.
Another user shared a similar experience, stating that their fuel gauge quit working when it reached half empty, and they had to take their car to the dealer for a fuel level sensor replacement. This process also took several days, as the fuel tank and transmission had to be pulled.
It is recommended that if the sending unit needs to be replaced, the job should be performed by a competent repair facility, as it is a challenging task that requires safely lifting the vehicle off the ground to remove the tank.
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Driving style impacts fuel economy
The fuel tank capacity of a C7 Corvette is 18.5 gallons. However, some users have reported only being able to put 15.5-16 gallons in the tank.
The fuel economy of the C7 Corvette is dependent on several factors, including driving style. Driving styles vary widely, and the mileage one can expect from a C7 depends on the type of driving one usually does. For example, one user reported that they get around 18-22 mpg in city driving, and 8-15 mpg on the highway. Another user reported getting 23-24 mpg on the highway, and 20 mpg in town. The type of transmission also affects fuel economy, with the seven-speed manual C7 getting better city fuel economy than the standard eight-speed automatic, and the eight-speed dual-clutch transmission getting 2 mpg better on the highway than the seven-speed manual.
The way one drives also impacts fuel economy. One user noted that "if you drive it like a vette, it sucks gas, if you drive it like an accord, gas will last longer." Another user reported that their fuel economy was impacted by idling in traffic and "stomping on the gas."
The introduction of the GS in 2017 with its lower differential gearing has also lowered the overall "Corvette" rating, which has likely impacted the fuel economy of the C7.
Overall, the C7 Corvette's fuel economy is dependent on a variety of factors, including driving style, type of driving, transmission type, and vehicle specifications.
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Frequently asked questions
The fuel tank capacity of a C7 Corvette Stingray is 18.5 gallons. The C7 Corvette has two fuel tanks, left and right. The left-hand tank contains the electric fuel pump that supplies fuel to the engine, while the right-hand tank has a pump that transfers fuel to the left tank.
The fuel economy of a C7 Corvette depends on the type of driving. For city driving, the C7 Corvette can get around 18-22 mpg, while for highway driving, it can get 8-15 mpg. However, some users have reported getting up to 23-24 mpg on the highway. The fuel economy of a C7 Corvette is also affected by driving style, with aggressive driving reducing fuel efficiency.
The fuel gauge on a C7 Corvette can be inaccurate due to the siphoning system between the two fuel tanks. When the car is first started, the system reads the fuel level in both tanks, but after a few minutes, the fuel is transferred to the left-hand tank, resulting in the system estimating the fuel level. This can lead to the fuel gauge intermittently showing an empty reading when there is still fuel in the tanks.
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