
The fuel capacity of a Cessna C172L aircraft depends on the model year and the modifications made. For example, the 1976 Cessna 172M model has a standard fuel capacity of 42 US gallons, with 38 gallons being usable. On the other hand, the 1971 model year 172L has optional long-range 52 US gallon (197 litres) wing fuel tanks. Cessna 172 aircraft have also been modified with additional fuel tank capacity in the wingtips and added baggage compartment tanks. The first factory-fitted fuel-injected engine in a Cessna 172 was introduced with the Skyhawk R model in 1996.
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What You'll Learn

The 1976 model has a fuel capacity of 42 gallons
The Cessna 172, or the Skyhawk, as it was rebranded in 1976, is a versatile aircraft that has undergone several modifications over the years. The 1976 model has a fuel capacity of 42 gallons, with 21 gallons in each of its two tanks. This is the standard tank capacity, and it is important to note that only 38 gallons of this total capacity are usable.
For those seeking longer-range flights, the 1976 Cessna 172 offers an optional long-range tank with a capacity of 52 gallons, 4 gallons more than the standard tank. With this option, pilots can utilise up to 48 gallons of fuel, an increase in usable fuel that significantly boosts the aircraft's endurance.
The ability to choose between standard and long-range tanks provides pilots with flexibility, catering to diverse mission requirements. The standard tanks are suitable for shorter flights and routine operations, while the long-range option enables pilots to embark on extended journeys without the need for frequent refuelling.
Over the years, the Cessna 172 has been a platform for numerous modifications, including enhancements to engine power, weight capacity, and fuel efficiency. The 1976 model, with its fuel capacity options, exemplifies the aircraft's adaptability, catering to the varying needs of pilots and operators.
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Modifications can increase fuel capacity
The Cessna 172L is a single-engine high-wing cabin passenger/utility monoplane. The fuel capacity of the Cessna 172 varies depending on the model year and optional extras. For example, the 1969 model offered optional long-range 52 US gal (197 L) wing fuel tanks.
The 1979 model "N" increased the optional fuel capacity to 66 US gallons (250 L) with larger wing tanks. The "P" model, introduced in 1981, offered a wet wing with a capacity of 62 US gallons of fuel.
The Cutlass RG, a variation of the Cessna 172, features a more powerful Lycoming O-360-F1A6 engine and has a fuel capacity of 62 US gallons (230 L; 52 imp gal), compared to the standard Skyhawk's 53 US gallons (200 L; 44 imp gal).
The fuel capacity for the 1976 Cessna 172M with standard tanks is 42 gallons, with 38 gallons being usable. The long-range tanks option for this model increases the capacity to 52 gallons, with 48 gallons being usable.
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The 1970 model offered long-range wing fuel tanks
The Cessna 172 is a versatile aircraft that has been in production since 1958, with numerous modifications and improvements made over the years. One notable enhancement was introduced with the 1970 model, which offered optional long-range wing fuel tanks with a capacity of 52 US gallons (197 litres).
The long-range fuel tanks were an optional feature for the 1970 Cessna 172 model, providing pilots with greater endurance and range. These fuel tanks were designed to extend the aircraft's time in the air, allowing for longer flights and potentially reducing the need for refuelling stops.
The standard fuel tanks on the Cessna 172 typically hold around 42 gallons of fuel, with 38 gallons being usable. However, the optional long-range wing fuel tanks offered a significant increase in capacity, accommodating up to 52 gallons of fuel, with 48 gallons being usable. This additional fuel capacity provided pilots with greater flexibility and endurance during their flights.
The 1970 model year of the Cessna 172 also introduced several other notable features. It featured fiberglass, downward-shaped, conical camber wingtips, which improved the aircraft's aerodynamics and handling characteristics. Additionally, this model offered optional fully articulated seats, enhancing comfort and adjustability for pilots and passengers.
The availability of optional long-range wing fuel tanks on the 1970 Cessna 172 model was a significant step forward, providing pilots with increased range and endurance options. This modification showcases the continuous improvements made to the Cessna 172 over its production history, ensuring it remains a popular and adaptable aircraft for recreational and professional pilots alike.
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The 1974 model had a larger baggage compartment
The Cessna 172 is a single-engine high-wing cabin passenger/utility monoplane. It was first introduced in 1958 and has been modified over the years with various supplemental type certificates (STCs). The modifications include increased engine power, higher gross weight, additional fuel tank capacity, and enhanced landing and takeoff performance.
The 1974 model year of the Cessna 172, specifically the 172M or Skyhawk II, introduced a larger baggage compartment as part of its higher standard equipment. This model was sold alongside the baseline 172M and Skyhawk models, offering features such as a second nav/comm radio, an ADF and transponder, and nose-mounted dual landing lights. The 1974 172M was also the first to introduce the optional "II" package, which included these additional features.
The larger baggage compartment in the 1974 Cessna 172 model was a notable improvement, providing more space for luggage and equipment. This was an important consideration for pilots and passengers who needed to carry a significant amount of gear. The key-locking baggage door, introduced in the previous 1973 model year, also enhanced security and convenience.
The fuel capacity of the 1974 Cessna 172 is not explicitly mentioned, but it is known that the standard fuel capacity for the 1976 Cessna 172M is 21 US gallons in each tank, for a total of 42 gallons, with 38 gallons being usable. The long-range tanks option offered in some models increased fuel capacity to 52 US gallons, with 48 gallons usable. It is reasonable to assume that the fuel capacity of the 1974 model would be similar to these figures, given the proximity in model years.
The 1974 Cessna 172 model with the larger baggage compartment was part of the continuous improvements made to the aircraft over its production history. Each year, Cessna made subtle changes and enhancements to the design, improving performance, comfort, and functionality. The 1974 model, with its combination of features, proved popular, with a total of 6,826 units built between 1973 and 1976.
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The 1996 model was the first factory-fitted fuel-injected engine
The Cessna 172 is an American four-seat, single-engine, high-wing, fixed-wing aircraft manufactured by the Cessna Aircraft Company. The Cessna 172 Skyhawk R, introduced in 1996, was the first Cessna 172 model to feature a factory-fitted fuel-injected engine. This model was equipped with a derated Lycoming IO-360-L2A engine capable of producing a maximum of 160 horsepower (120 kW) at 2,400 rpm.
The 1996 model year marked a significant milestone for the Cessna 172, as it was the first time the aircraft received a factory-fitted fuel-injected engine. Prior to this, the Cessna 172 had undergone various modifications and improvements, but the factory-fitted fuel-injected engine was a notable enhancement. This engine upgrade contributed to the aircraft's overall performance and efficiency.
The factory-fitted fuel-injected engine in the 1996 Cessna 172 Skyhawk R offered several advantages. Firstly, it provided improved fuel efficiency compared to previous models, resulting in lower fuel consumption and potentially extended range. Secondly, fuel injection systems are known for providing smoother power delivery, enhancing the overall flight experience and reducing engine noise. Additionally, fuel injection systems are generally more reliable and require less maintenance than carbureted engines, which were commonly used in earlier aircraft models.
The 1996 Cessna 172 Skyhawk R with its factory-fitted fuel-injected engine also introduced other notable improvements. These included a new interior with soundproofing, an advanced multi-level ventilation system, and contoured, energy-absorbing front seats with vertical and reclining adjustments. The maximum takeoff weight for this model was 2,450 lb (1,111 kg), and it featured a standard four-point intercom system and inertia reel harnesses.
In summary, the 1996 Cessna 172 Skyhawk R was a significant evolution of the Cessna 172 aircraft, and its factory-fitted fuel-injected engine was a notable first for this model. This engine upgrade, along with other improvements, contributed to enhanced performance, comfort, and functionality, further solidifying the Cessna 172's reputation as one of the most successful aircraft in history.
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Frequently asked questions
The fuel capacity of a C172L is 43 gallons, with 40 gallons being usable.
Modifications to increase fuel capacity include adding additional fuel tanks in the wingtips and installing baggage compartment tanks.
The fuel capacity of a 1976 Cessna 172 with standard tanks is 42 gallons, with 38 gallons being usable.





































