Rajan Wilcox
The Porsche 991 has a fuel tank capacity of 63 to 64 litres. The fuel tank is located in the front of the car, behind the frunk, and has two fuel pumps: a lower-pressure pump in the tank and a high-pressure pump that runs off the left-side camshaft. The Porsche handbook recommends using super unleaded or >98 RON fuel, but the car can also run on regular unleaded (95 RON) fuel, albeit with reduced performance.
| Characteristics | Values |
|---|---|
| Fuel tank location | Behind the "frunk" (front trunk) |
| Fuel tank capacity | 63-64 litres |
| Fuel type | Super unleaded or >98 RON |
| Alternative fuel type | Regular unleaded (95 RON) |
| Fuel pump type | High-pressure fuel pump |
| Fuel pump location | Left side camshaft |
Explore related products
What You'll Learn
The fuel tank is located in front, behind the frunk
The fuel tank on a 991 Porsche is located in front, behind the frunk. This is in contrast to many other vehicles, where the fuel tank is located at the rear, next to the engine.
The Porsche 991's fuel tank has a capacity of around 63 to 64 litres, with a 10-litre reserve included in this amount. The fuel type recommended for the 991 is super unleaded or >98 RON, although regular unleaded (95 RON) can be used if needed. When using regular unleaded, the engine will auto-adjust the timing, and the car will enter a drive safe mode to protect itself from any potential damage.
The 991.1 model features a direct injection motor and two fuel pumps: a lower-pressure pump in the tank and a high-pressure pump on the left side camshaft. These pumps are known to fail, and replacing them can be a time-consuming process, especially when ensuring proper safety precautions are taken when working with fuel.
The fuel tank location in the 991 Porsche, behind the frunk, is a thoughtful design choice by the manufacturer, prioritising safety by moving the tank out of the front crush zone.
Draining Gas Fuel Tank in Lincoln LS: Step-by-Step Guide
You may want to see also
Explore related products
The tank capacity is 63 to 64 litres
The Porsche 991's fuel tank is located in the front of the car, behind the "frunk" (front trunk). The tank capacity is 63 to 64 litres, with a 10-litre reserve. This gives the car a range of 250-270 miles in urban areas and up to 400 miles on motorway speeds.
The Porsche 991's fuel tank capacity is comparable to that of other sports cars in its class. However, some owners have expressed a desire for a larger fuel tank, as the car's range may not be suitable for long-distance driving without frequent refuelling.
The 991 model has been noted to have a "'saddle tank' issue, similar to the 996 model, where the fuel gauge can be inaccurate when the tank is less than one-third full due to the unusual shape of the tank. This can cause confusion about the actual amount of fuel in the tank and the need to refuel.
The fuel tank capacity of the Porsche 991 is an important consideration for potential buyers, especially those planning to use the car for touring or driving in areas without easy access to fuel stations. While the car's performance and handling may be a priority, the fuel tank size can impact the overall driving experience and range anxiety.
Overall, the Porsche 991's fuel tank capacity of 63 to 64 litres provides a balance between performance and range, but drivers should be mindful of the potential for inaccurate fuel gauge readings and plan their refuelling stops accordingly.
Preventing Water in Diesel Fuel Tanks: Strategies and Solutions
You may want to see also
Explore related products
The car has two fuel pumps
The Porsche 991 has a direct injection motor and two fuel pumps. One is a lower pressure pump located in the fuel tank, and the other is a high-pressure pump that runs off the left-side camshaft. These pumps are known to fail, and there are several online guides for replacing them.
The fuel tank on the Porsche 991 is located in the front, behind the "frunk" (front trunk). This placement is necessary due to the lack of space in the back, where the engine and transmission are located.
When replacing the high-pressure fuel pump, it is recommended to remove the rear bumper guard, exhaust, and engine carrier to speed up the process and provide better access. It is important to work in a well-ventilated area and wear safety glasses and chemically resistant gloves when performing this task.
The procedure involves removing the battery and tray, disconnecting the ground on the battery, and following various steps to access and replace the pump. It is important to pay attention to the orientation of the pump flanges and lubricate certain components during the process.
The lower pressure pump in the tank can also be replaced, and it is attached to the bottom of the fuel tank. Porsche makes a special tool for removing the sealing ring/cap on the top of the sender, which is required for this process.
Cleaning Your C230 Fuel Tank: A Step-by-Step Guide
You may want to see also
Explore related products
98-ron-fuel'>The car's handbook recommends super unleaded or >98 RON fuel
The Porsche 991's fuel tank is located in the front of the car, behind the "frunk". The car's handbook recommends super unleaded or >98 RON fuel. This is because the engine will run hotter on 95 RON fuel, which is not good for longevity, thermal stress, and reliability. Using 95 RON fuel will also result in a loss of power, increased fuel consumption, and reduced torque.
The Porsche 991 is equipped with catalytic converters and therefore must use unleaded fuel only. While Porsche recommends using unleaded premium fuel with an octane rating of 98 RON, the car can also operate on unleaded premium fuels with octane numbers of at least 95 RON. The engine's "Electronic Octane™ knock control" will adjust the ignition timing if necessary to compensate for the lower octane fuel.
However, it is important to note that using 95 RON fuel will result in a slight decrease in performance and fuel economy. The car's handbook states that using 95 RON fuel will cause the engine to go into a "drive safe mode", which modifies timing, reduces power, and decreases fuel economy. The car will revert to normal performance once it receives fuel with an octane rating of 98 RON or higher.
While 95 RON fuel can be used in the Porsche 991 in emergencies, it is recommended to use 97, 98, or 99 octane fuel when available. This higher octane fuel is cleaner, kinder to the engine, and maximizes performance potential. Additionally, the Porsche Club of Great Britain (PCGB) offers its members an Esso fuel card that provides discounted 99 octane fuel.
It is worth noting that the location of the fuel tank in the front of the car may affect the car's handling and ride height. Some owners have noticed that their car sits lower in the back when the tank is full, and that the front raises and lowers when they get in and out of the car.
How to Handle Old Diesel and Your Fuel Tank
You may want to see also
Explore related products
The fuel tank is protected by a cover plate
The high-pressure fuel pump is a critical component of the Porsche 991's fuel system, responsible for delivering pressurised fuel to the engine. By being located behind the cover plate, the pump is safeguarded from potential harm, contributing to the overall reliability of the vehicle.
The cover plate itself is strategically positioned within the vehicle's architecture, typically requiring the removal of the rear bumper guard, exhaust, and engine carrier for access. This placement allows for convenient maintenance and repairs when needed.
In addition to protecting the high-pressure fuel pump, the cover plate also contributes to the overall safety of the vehicle. By enclosing the fuel pump, the cover plate reduces the risk of fuel leakage and potential fire hazards associated with exposed fuel systems.
Furthermore, the cover plate plays a role in maintaining the Porsche 991's aesthetic appeal. It seamlessly integrates with the vehicle's design, ensuring that the fuel tank and pump are securely housed within the car's body, contributing to its sleek and iconic appearance.
Fuel Tank Capacity for 2006 Chevy C6500 Models
You may want to see also
Frequently asked questions
The fuel tank on a 991 Porsche is located in the front, behind the "frunk".
The fuel tank capacity of the 991 Porsche is 63 to 64 litres.
The handbook suggests using super unleaded or >98 RON. However, if you use regular unleaded (95 RON), the engine will auto-adjust the timing.
The "saddle tank" problem occurs when the fuel gauge goes into "memory" instead of reading the actual fuel level when it goes below a certain level. This can be addressed by installing additional or differently placed sensors.
