Mercedes Mullins
NASCAR fuel cans hold 12 gallons of racing fuel, which weighs approximately 95 pounds. The weight of the fuel is dependent on its temperature, with warmer fuel weighing less. The fuel cans are weighed before and after refuelling during pit stops to calculate fuel consumption. NASCAR race cars have an 18-gallon fuel cell, which is not always filled to the brim, especially towards the end of a race, as a lighter car is faster.
| Characteristics | Values |
|---|---|
| Fuel tank capacity | 18 gallons |
| Fuel can capacity | 12 gallons |
| Fuel dump can weight | 95 pounds |
| Fuel can weight | 81 pounds |
| Fuel weight per gallon | 6 pounds |
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What You'll Learn
NASCAR fuel cans hold 12 gallons
The fuel cans are emptied into the car's fuel cell, which has a capacity of 17.75 gallons or 18 gallons, according to different sources. The fuel cell is not always filled to capacity, especially towards the end of a race, as a lighter car is faster.
The fuel used in NASCAR is Sunoco Green E-15, a high-octane blend of 15% ethanol and unleaded gasoline with an octane rating of 98. This fuel has a density of 6.2 lbs per gallon, as provided by Sunoco.
Due to various factors such as driving style, racing surface, and traffic conditions, it is challenging to determine exactly how much fuel is in the tank or how far a driver can go before needing to refuel. Teams use electronic control units and past race data to estimate fuel mileage and make strategic decisions.
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Fuel cells are 17.75 gallons
The fuel cell size in NASCAR cars is 17.75 gallons, according to a 2017 Reddit post. The user also mentions that the fuel cell size was previously 22 gallons but was shrunk to the current size with the advent of the COT. Another user on the same thread mentions that the fuel cans are 12 gallons, which is corroborated by several other sources.
NASCAR fuel cans are weighed before and after refuelling during pit stops to get a precise measurement of fuel consumption. The weight of the fuel that went into the car is the difference between the two weights. To convert weight to volume, the fuel's density must be used. Sunoco, the exclusive fuel provider for NASCAR, gives the density of the E-15 fuel as 6.2 lbs per gallon.
The fuel cell size of 17.75 gallons is further supported by the fact that NASCAR fuel cans hold 12 gallons each, and two fuel cans are emptied into the car's fuel cell. This would result in a total of 24 gallons, but it is likely that some fuel is left in the cans, resulting in a total of around 17.75 gallons in the fuel cell.
NASCAR race cars are also reported to have approximately an 18-gallon fuel cell, which is close to the value of 17.75 gallons. This discrepancy could be due to rounding or measurement errors.
In conclusion, the evidence suggests that NASCAR fuel cells hold around 17.75 gallons of fuel, and the size of the fuel cell has decreased over time to accommodate new technologies and strategies.
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Fuel cans weigh 95 pounds when full
NASCAR fuel cans weigh 95 pounds when full. The weight of the fuel can is important for several reasons. Firstly, it is used to calculate fuel mileage. The fuel cans are weighed before and after refuelling during pit stops, and the difference in weight is used to determine how much fuel was dispensed into the car. This calculation is done by subtracting the weight of the can after refuelling from the initial weight, and then dividing that number by the weight of a gallon of fuel, which is approximately 6 pounds.
The weight of the fuel can also impacts the speed and performance of the car. A heavier car will generally be slower, so crews may choose not to completely fill the fuel tank, especially towards the end of a race. Additionally, the weight of the fuel itself can vary depending on temperature, with warmer fuel weighing less. This is an important consideration for teams when strategizing and calculating fuel mileage.
The weight of the fuel can also affects the role of the pit crew members. The gas man, who is responsible for refuelling the car, needs to have significant muscle strength due to the weight of the full fuel can. This is a physically demanding task and requires a crew member with the necessary strength and fitness level.
Finally, the weight of the fuel can also influences the overall weight distribution of the car. The placement of the fuel cans in the pit stop can impact the balance and handling of the car. Finding the optimal position for the fuel cans is part of the team's strategy to ensure the car performs at its best during the race.
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NASCAR fuel mileage varies
The density of the fuel is provided by Sunoco, and it is used to calculate the volume of fuel in the cans. The density of the E-15 fuel used by NASCAR is 6.2 lbs per gallon, and it can change with temperature and humidity. Warmer fuel weighs less, and the weight of the fuel is noted along with the time and temperature before refueling.
The mileage of a NASCAR car depends on various factors such as the driving style, racing surface, track size, and tire wear. Driving deeper into a turn before easing off the gas pedal, for example, uses more fuel. Tire wear also impacts fuel mileage, with abrasive surfaces causing more tire wear and affecting mileage.
NASCAR teams use past history and electronic control units to determine fuel mileage and make educated guesses about how much fuel is left in the tank. They also listen to other teams' radio communications to gain insights into their strategies.
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Fuel cans are weighed before and after pit stops
The weight of the fuel cans is not the only factor considered when calculating fuel mileage. The time, temperature, and humidity are also taken into account as they can affect the weight and density of the fuel. For example, the warmer the fuel, the lighter it weighs.
In addition to these calculations, electronic control units provide information that helps teams determine fuel mileage. This information, along with past race data, is used to estimate how much fuel is in the tank and how far a driver can go before needing to refuel.
The weight of the fuel cans and the amount of fuel used during pit stops are important considerations in NASCAR. A full tank of fuel weighs more, making the car heavier and potentially slower. Therefore, crews may choose not to completely fill the tank, especially towards the end of a race when every second counts.
The size of the fuel cans and the amount of fuel they can hold may vary depending on the race and the team's strategy. For example, the Xfinity/Truck Series moved to a 9-gallon dump can, which is smaller than the standard 12-gallon can. This allows teams to have a smaller or weaker person as the gas man/woman instead of hiring a large and strong athlete for the pit crew.
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Frequently asked questions
A standard NASCAR fuel dump can typically holds 12 gallons of racing fuel.
A NASCAR fuel can weighs approximately 95 pounds when filled with 12 gallons of racing fuel.
A gallon of racing fuel weighs about 6 pounds, although the actual weight will vary depending on temperature.
The fuel tank in NASCAR cars can hold 18 gallons of fuel, although they are not always filled completely.
NASCAR cars have a fuel efficiency of about 5 miles per gallon (mpg) of fuel.
