Sylvie Willis
The Suzuki DRZ400S is a dual-sport motorcycle with a fuel capacity of 2.6 gallons (or 2.3 gallons for the 2025 model). Its fuel economy is generally considered decent, with some users reporting mileage of 50-70 mpg, depending on riding conditions. However, some users have noted a decrease in mileage when installing larger aftermarket carburetors or when riding in challenging terrain like the open desert. To improve fuel capacity, some owners have opted for aftermarket fuel tanks, with options ranging from 3.7 to 4 gallons, offering increased range and flexibility.
| Characteristics | Values |
|---|---|
| Fuel tank capacity | 2.6 gallons (stock) or 2.9 gallons; 2.3 gallons (2025 model) |
| Fuel economy | 47-50 mpg; 50-55 mpg (before the bike was broken in); 67-70 mpg; 73 mpg |
| Fuel capacity upgrade options | Clarke 3.9; IMS 4.0; Acerbis 3.7 |
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What You'll Learn
The stock tank of a Suzuki DRZ400S holds 2.6 gallons of fuel
The Suzuki DRZ400S is a dual-sport motorcycle known for its impressive fuel mileage. The stock tank of a Suzuki DRZ400S holds 2.6 gallons of fuel, though some sources suggest a capacity of 2.9 gallons. This capacity allows for a considerable range, with some riders reporting distances of 120-130 miles between fill-ups.
The DRZ400S's fuel economy is a notable feature, with reports of 47-50 mpg being common. However, riding style and terrain can significantly impact fuel consumption. Aggressive riding and full-throttle applications can reduce the distance travelled before hitting reserve. Additionally, fuel economy may be lower when riding through challenging conditions, such as deep silt in the desert.
For those seeking even greater range, aftermarket fuel tanks are available that can provide higher capacities. Options such as the Clarke 3.9 and IMS 4.0 gallon tanks are popular choices for DRZ400S owners looking to extend their riding distance between refuelling stops. These larger tanks offer the advantage of increased fuel capacity, but they may also impact the bike's aesthetics and handling dynamics.
While the stock tank's 2.6-gallon capacity is already quite generous for a motorcycle, the availability of aftermarket options showcases the desire for even greater fuel range among some DRZ400S enthusiasts. The choice between the stock tank and an aftermarket upgrade depends on individual riding needs and preferences.
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The DRZ400S gets 50-73 mpg
The Suzuki DRZ400S is a dual-sport motorcycle known for its fantastic mileage. The DRZ400S gets 50-73 mpg, depending on riding style and conditions. Some users report achieving 73 mpg on mixed open highways, city stop-and-go, and cornering. Others claim to get 60-70 mpg, with some modifications and careful riding.
The DRZ400S's fuel economy is decent, but it can vary depending on the terrain and riding conditions. For example, one user reported that their fuel economy changed when riding through 6" of silt in the open desert.
The stock fuel tank capacity of the DRZ400S is reported to be between 2.6 and 2.9 gallons, depending on the model year. Some users have opted for aftermarket fuel tanks, which can increase the fuel capacity, but the gain is relatively small.
The DRZ400S is a popular choice for riders looking for a reliable and fun bike with excellent fuel efficiency. It is known for its handling, suspension, and build quality. The bike's versatility allows riders to easily transition from on-road to off-road riding, making it a well-rounded option for those seeking both performance and efficiency.
Overall, the Suzuki DRZ400S is a fuel-efficient motorcycle, capable of achieving impressive mileage, especially when compared to other bikes in its class. Its fuel economy, combined with its handling and performance, make it a popular choice for riders seeking a versatile and enjoyable riding experience.
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The IMS 4-gallon tank is a popular upgrade
The Suzuki DRZ400 is a dual-sport motorcycle known for its impressive fuel economy. The stock fuel tank capacity of the DRZ400 is 2.6 gallons, although some sources mention a capacity of 2.9 gallons or a decrease to 2.3 gallons in the 2025 model.
While the stock tank capacity is already considered hefty, some riders opt for an upgrade to the IMS 4-gallon fuel tank. This larger capacity tank is a popular choice for several reasons. Firstly, it provides a greater riding distance per tankful, which is advantageous for serious off-road adventures or long-distance travel. The increased capacity means riders can explore remote locations without worrying about fuel running out, which is especially important when riding through areas with limited access to fuel stations.
Secondly, the IMS 4-gallon tank is designed with a slim and sleek profile, enhancing the appearance of the motorcycle. It is constructed from polyethylene plastic, which reduces weight compared to the stock tank. This material is also highly durable, with a reinforcing crosslink that prevents deformation under fuel weight and sun exposure. The tank is available in a range of colours, including black, white, blue, green, and natural (transparent), allowing riders to customise their bike's aesthetic.
Additionally, the IMS tank is designed as a direct fit for the Suzuki DRZ400 and its variants, ensuring a seamless installation process. The tank comes with all the necessary accessories for installation, such as the cap and mounting hardware, making it a straightforward upgrade for riders looking to improve their fuel capacity and bike's style.
The IMS 4-gallon fuel tank is a well-known and well-liked update for the Suzuki DRZ400, providing riders with increased fuel capacity, improved aesthetics, and the peace of mind that comes with extended riding distances.
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The Clarke 3.9-gallon tank is another upgrade option
The Suzuki DRZ400S and DRZ400SM motorcycles are known for their fuel economy, with the stock tank holding 2.6 gallons (some sources state 2.9 gallons) of fuel. However, for those seeking even more fuel efficiency and extended rides without refuelling, the Clarke 3.9-gallon tank is another upgrade option.
The Clarke 3.9-gallon tank is a high-quality, oversized fuel tank designed as an alternative to the smaller OEM tanks found on the 2000-2010 models of the Suzuki DRZ400S and DRZ400SM. Made from high-density plastic, it offers durability and a long lifespan. The tank's capacity of 3.9 gallons (or 14.8 litres) provides a significant increase in fuel volume over the stock tank, allowing riders to go further between refuelling stops and reducing the risk of being stranded.
This upgrade is particularly useful for off-road adventures or long-distance trips, as evidenced by its popularity among Baja-winning teams. The extra fuel capacity ensures that riders can cover greater distances without worrying about fuel levels, especially in remote or challenging terrain. The tank is designed to fit seamlessly, allowing for the OEM side panels to screw into place and accommodating the OEM petcock fuel valve.
Additionally, the Clarke tank is available in a range of colours, including black, blue, Kawasaki green, natural, yellow, and white, allowing riders to customise their bikes to their preference. This upgrade provides a practical solution for DRZ400 owners seeking to maximise their riding range and minimise refuelling stops, all while maintaining the bike's performance and handling characteristics.
It's worth noting that while the Clarke 3.9-gallon tank offers a substantial increase in fuel capacity, it may not be suitable for all riders or usage scenarios. Some riders may prefer the standard tank size, especially for shorter commutes or rides where weight and manoeuvrability are more critical factors. Ultimately, the choice between the stock tank and the Clarke upgrade depends on the specific needs and riding habits of the DRZ400 owner.
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Fuel economy is lower when riding in the desert
The Suzuki DRZ400s dual-sport motorcycle is said to have fantastic mileage. The stock tank can hold 2.6 gallons of fuel, though some sources state that it can hold 2.9 gallons. However, fuel economy tends to be lower when riding in the desert. This is due to a variety of factors, including the type of terrain and driving habits.
When riding in the desert, the soft and uneven terrain can increase fuel consumption. Deep sand or silt can cause the motorcycle's tyres to sink, requiring more power and fuel to maintain momentum. Additionally, riding uphill or charging up dunes can also increase fuel usage.
Driving habits can also impact fuel economy. Speeding, rapid acceleration, and harsh braking can significantly reduce fuel mileage, especially at higher speeds. Slowing down and adopting a smoother driving style can help improve fuel efficiency. Maintaining a constant speed and anticipating traffic flow can also contribute to better fuel economy.
Furthermore, additional weight or accessories on the motorcycle can affect fuel consumption. Roof racks, boxes, or extra luggage can decrease fuel efficiency. It is advisable to remove any unnecessary items before embarking on a desert ride to optimise fuel economy.
To improve fuel economy when riding in the desert, it is recommended to use fuel-efficient eco-driving techniques. This includes maintaining a steady speed, anticipating traffic flow, and reducing abrupt acceleration and sudden braking. Additionally, ensuring proper vehicle maintenance and removing any unnecessary weight or accessories can further enhance fuel efficiency.
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Frequently asked questions
The stock fuel capacity of a DRZ400 is 2.6 gallons. However, some users have reported a stock capacity of 2.9 gallons.
The fuel economy of a DRZ400 is around 50-70 mpg. However, this can vary depending on riding conditions and engine modifications.
Yes, there are aftermarket fuel tanks available that can increase the fuel capacity of the DRZ400. Popular options include the Clarke 3.9 and IMS 4.0 gallon tanks.
The frequency of filling up the tank depends on usage and riding conditions. Some users report filling up every 120 miles, while others hit the reserve after 80-100 miles.
No, the DRZ400 does not have a built-in fuel gauge. Riders need to estimate their mileage and keep track of their fuel usage to avoid running out of gas.
