
The fuel tank capacity of a car is an important consideration when purchasing a vehicle. The 2004 Volvo S60 has varying fuel tank capacities depending on the model. The front-wheel-drive model can hold approximately 18.5 US gallons (70 liters), while the all-wheel-drive model can hold 19 US gallons (72 liters). The S60R model has a fuel capacity of 18 US gallons (68 liters). Volvo engines are designed to use unleaded premium gasoline with an AKI octane rating of 91 or above, and some owners have reported using gasoline with an octane rating of 89 with no issues.
| Characteristics | Values |
|---|---|
| Fuel Tank Capacity | Front-wheel drive: 18.5 US gallons (70 liters) |
| All-wheel drive: 19 US gallons (72 liters) | |
| S60R: 18 US gallons (68 liters) | |
| Fuel Type | Unleaded premium gasoline with an AKI octane rating of 91 or above |
| Regular unleaded gasoline (minimum AKI of 87) | |
| Gasoline with 10% ethanol blend | |
| Super-unleaded |
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What You'll Learn

Fuel tank capacity
The fuel tank capacity of a 2004 Volvo S60 depends on the model of the car. The fuel tank capacity for the front-wheel-drive model is approximately 18.5 US gallons (70 liters). The all-wheel-drive model has a fuel tank capacity of about 19 US gallons (72 liters). Meanwhile, the S60R model can hold up to 18 US gallons (68 liters) with some room left for fuel expansion in hot weather.
It is important to note that the actual usable tank capacity may be slightly less than the specified maximum capacity. Factors such as ambient temperature, fuel characteristics, and terrain can impact the fuel pump's ability to supply the engine with enough fuel when levels are low. Therefore, it is recommended to refuel as soon as the fuel level reaches the red zone or when the fuel warning light illuminates.
When refueling a 2004 Volvo S60, it is important to turn off the ignition or set it to position I to avoid incorrect fuel gauge readings. After refueling, ensure that the fuel filler cap is securely closed by turning it clockwise until it clicks into place. Allow for fuel expansion by avoiding overfilling the tank.
Volvo recommends using unleaded premium gasoline with an AKI (Anti-Knock Index) octane rating of 91 or above for optimal performance in the 2004 Volvo S60. The AKI is calculated by averaging the Research Octane Number (RON) and the Motor Octane Number (MON). The minimum recommended octane rating is AKI 87 (RON 91). Using detergent gasoline with deposit control additives can help maintain engine cleanliness and fuel economy.
Some 2004 Volvo S60 owners have reported their experiences with different octane ratings. Some have noticed improved mileage and smoother engine performance when using higher octane gasoline. However, the benefit of using higher octane fuel may vary depending on the vehicle's specific model and engine type. It is always recommended to refer to the vehicle's owner's manual or seek advice from authorized Volvo retailers or service stations for fuel recommendations specific to your vehicle.
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Fuel type
The 2004 Volvo S60 is designed for optimum performance on unleaded premium gasoline with an AKI (Anti-Knock Index) octane rating of 91 or above. The AKI is an average of the Research Octane Number (RON) and the Motor Octane Number (MON). Volvo recommends a minimum octane rating of 87 (RON 91).
Volvo S60 owners have reported using 87, 89, and 93 octane-rated fuels without issues. However, some have noticed a decrease in mileage when using fuel with a 10% ethanol blend. It is important to note that using fuel with an octane rating lower than 91 in turbocharged cars is not advisable, as it may impact performance and engine life.
Higher octane-rated fuels can provide benefits such as smoother engine performance and improved gas mileage. However, the benefits may vary depending on external factors such as temperature and driving conditions. Additionally, the use of fuel additives, such as detergent additives, is recommended by Volvo to control engine deposits and maintain good driveability and fuel economy.
It is also worth noting that some U.S. and Canadian gasolines contain an octane-enhancing additive called methyl-cyclopentadienyl manganese tricarbonyl (MMT), which may affect the performance of your Emission Control System and cause the Check Engine Light to illuminate. In some areas, gasoline may also contain "oxygenates", such as alcohols or ethers, to meet seasonal air quality standards.
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Fuel efficiency
The fuel efficiency of a car depends on a variety of factors, including the car's make and model, engine size and type, driving conditions, and even the way the driver operates the vehicle. When it comes to the 2004 Volvo S60, there are several features and recommendations that contribute to its fuel efficiency.
Firstly, the fuel tank capacity plays a role in fuel efficiency. According to Volvo, the 2004 S60 has a fuel tank capacity of approximately 18.5 US gallons (70 liters) for the front-wheel-drive model, 19 US gallons (72 liters) for the all-wheel-drive model, and 18 US gallons (68 liters) for the S60R model. It's important to note that the "usable" tank capacity may be slightly less than these maximum values, and factors like ambient temperature and fuel characteristics can affect the vehicle's range.
The 2004 Volvo S60 is designed to use unleaded premium gasoline with an AKI (Anti-Knock Index) octane rating of 91 or above. The AKI is calculated as the average of the Research Octane Number (RON) and the Motor Octane Number (MON), with the formula (RON + MON) / 2. Volvo recommends this higher octane fuel to optimise the vehicle's performance and fuel efficiency. While some sources suggest that the car can also run on regular unleaded fuel with an octane rating of 87, using higher octane fuel can provide benefits.
Higher octane fuel can improve the car's performance and increase mileage. This is because higher octane fuel has a higher resistance to premature detonation, which can occur if the fuel ignites before the piston is in the correct position. By preventing this, you reduce the risk of engine damage and improve fuel efficiency. Additionally, Volvo recommends the use of detergent gasoline (deposit control gasoline) to control engine deposits. Keeping injectors and intake valves clean through the use of detergent additives can also help ensure good driveability and fuel economy.
The 2004 Volvo S60 also includes a feature called Geartronic manual shifting, which allows the driver to manually select gears while driving. Gears 3 and 4 have a "lock-up" function that reduces engine speed and helps save fuel. By utilising this feature and selecting the appropriate gear for the driving conditions, drivers can further optimise the fuel efficiency of their vehicle.
Based on data from fuel-ups and miles driven, the 2004 Volvo S60 has a combined average MPG (miles per gallon) of around 25. This number can vary depending on driving conditions, terrain, and other factors, but it provides a good indication of the vehicle's overall fuel efficiency.
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Fuel additives
The fuel tank of a 2004 Volvo S60 holds approximately 18.5 US gallons (70 liters) for front-wheel drive, 19 US gallons (72 liters) for all-wheel drive, and 18 US gallons (68 liters) for the S60R model. Volvo engines are designed to run on unleaded premium gasoline with an AKI octane rating of 91 or above.
Now, onto fuel additives. While some sources suggest that Volvo does not recommend the use of fuel additives or external fuel injector cleaning systems, others claim that using a quality fuel additive can be beneficial, especially for deposit control. It is recommended to use detergent gasoline to control engine deposits and keep injectors and intake valves clean, which will help ensure good driveability and fuel economy.
If you are considering using a fuel additive, it is important to choose a quality product from a reputable brand. Some recommended additives include Amsoil PI (Performance Improver), Techron fuel system cleaner, and Sunoco top-tier 93 octane fuel. It is also suggested to use a combustion chamber/valve/injector cleaner in the gas/petrol tank and drive at least 3/4 of the treated fuel through the system. Additionally, consider doing an induction cleaning with a product like SeaFoam before an oil change.
It is important to note that some fuel suppliers in the US and Canada sell gasoline containing "oxygenates," which are usually alcohols or ethers. While these fuels can meet seasonal air quality standards, they may affect the performance of your vehicle's Emission Control System and cause the Check Engine Light to come on. In such cases, it is recommended to return your vehicle to an authorized Volvo retailer for service.
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Fuel cost
The fuel cost of a 2004 Volvo S60 will depend on several factors, including the fuel type, driving conditions, and vehicle specifications.
Firstly, the fuel tank capacity varies depending on the model of the 2004 Volvo S60. The front-wheel-drive model has a fuel tank capacity of approximately 18.5 US gallons (70 liters), while the all-wheel-drive model can hold up to 19 US gallons (72 liters). The S60R model has a slightly lower capacity of 18 US gallons (68 liters), with some volume left over to accommodate fuel expansion in hot weather.
When considering fuel costs, it's important to note that Volvo engines are designed for optimum performance using unleaded premium gasoline with an AKI (Anti-Knock Index) octane rating of 91 or above. The AKI is calculated as the average of the Research Octane Number (RON) and the Motor Octane Number (MON), with the formula: AKI = (RON + MON) / 2. Volvo recommends an octane rating of at least 87 (RON 91) as the minimum requirement.
Using higher octane fuel in a 2004 Volvo S60 may offer some benefits in terms of performance and mileage. Some owners have reported increased mileage when using higher octane fuel, although the impact can vary depending on external factors such as temperature. Additionally, running higher octane fuel can make the car run smoother, and it may provide better gas mileage, especially in turbocharged engines.
On the other hand, using regular unleaded fuel with an octane rating of 87 is also an option and will not cause any issues with the vehicle's performance. Some owners have reported that running regular gas in their 2004 Volvo S60 is perfectly fine, and it can help cut fuel costs. It's worth noting that using fuel with an octane rating lower than 91 in turbocharged cars is not recommended, as it may impact performance and engine wear over time.
Based on data from fuel-ups, the 2004 Volvo S60 has a combined average MPG (miles per gallon) of 25.37, with a 0.21 MPG margin of error. This data takes into account various driving conditions and fuel types used by different owners.
In conclusion, the fuel cost of a 2004 Volvo S60 will depend on the fuel type chosen, with higher octane fuel potentially offering better performance and mileage, but at a higher price. The specific driving conditions, vehicle model, and fuel tank capacity will also impact the overall fuel cost for this vehicle.
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Frequently asked questions
The fuel tank capacity of a 2004 Volvo S60 depends on the model. The front-wheel-drive model can hold approximately 18.5 US gallons (70 liters), while the all-wheel-drive model can hold 19 US gallons (72 liters). The S60R model can hold 18 US gallons (68 liters).
Volvo engines are designed to use unleaded premium gasoline with an AKI octane rating of 91 or above. Volvo recommends using detergent gasoline to control engine deposits and improve fuel economy.
Yes, you can use regular unleaded fuel in a 2004 Volvo S60 without any problems. However, using higher octane fuel may provide some performance and mileage gains, and is recommended for turbo engines.



























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