Suspension Upgrades Impact On Fuel Efficiency
July 2024
Suspension upgrades are a popular aftermarket accessory for truck, Jeep, and SUV owners looking to improve performance, handling, and aesthetics. At MC Customs, we specialize in a wide range of suspension upgrades, from leveling kits and suspension lifts, to air lift systems and more.
While these modifications offer numerous benefits, it’s important to understand how they can impact your vehicle’s fuel economy. In this article, we’ll talk about the effects of various suspension upgrades on fuel efficiency, in an effort to be transparent and help you make informed decisions for your vehicle.
In summary, leveling kits and air lift systems generally have the least negative impact on fuel efficiency, while lift kits and suspension lifts can significantly decrease fuel economy due to increased air resistance and weight.
At MC Customs Truck Accessories, we specialize in suspension upgrades of all kinds. We provide expert installation and advice to ensure you get the best performance and experience out of your suspension upgrade. Visit our shop, request a quote, or give us a call to talk suspension upgrades and find the perfect fit for your vehicle.
Leveling Kits
Leveling kits are designed to raise the front of your vehicle to match the height of the rear. This is a popular modification for those looking for a cost efficient way to improve the aesthetics of their vehicle and make room for slightly larger tires.
Impact on Fuel Economy
- Positive Effects: Leveling kits can reduce aerodynamic drag by creating a more streamlined profile, especially at highway speeds. This can lead to slight improvements in fuel efficiency.
- Negative Effects: The increased height may also increase air resistance slightly, especially if larger, heavier tires are installed. However, the impact is generally minimal compared to other suspension upgrades.
Lift Kits
Lift kits raise the entire vehicle higher off the ground, providing greater ground clearance for off-road adventures, performance and aesthetics. These kits can range from a modest 2-inch lift to more extreme 6-inch or higher lifts.
Impact on Fuel Economy
- Positive Effects: Higher ground clearance can reduce the likelihood of undercarriage damage during off-road excursions, potentially extending the vehicle’s lifespan and performance.
- Negative Effects: The most significant drawback is the increased air resistance due to the higher profile. Additionally, lift kits often require larger tires, which are heavier and have more rolling resistance, leading to decreased fuel efficiency.
Suspension Lifts
Suspension lifts involve upgrading the vehicle’s suspension components, such as shocks, struts, and control arms, to achieve increased height and improved off-road performance.
Impact on Fuel Economy
- Positive Effects: Enhanced suspension systems can improve handling and stability, particularly in off-road conditions, which can indirectly contribute to better fuel efficiency by maintaining optimal performance.
- Negative Effects: Similar to lift kits, suspension lifts can increase the vehicle’s overall weight and aerodynamic drag, negatively impacting fuel economy. The extent of this impact depends on the lift height and the type of tires used.
Air Lift Systems
Air lift systems use airbags instead of traditional coil or leaf springs, allowing for adjustable ride height and load leveling. These systems are particularly beneficial for vehicles that frequently carry heavy loads or tow trailers.
Impact on Fuel Economy
- Positive Effects: Air lift systems can improve fuel economy by maintaining optimal ride height and reducing drag when the vehicle is not carrying a heavy load. The ability to adjust ride height can also enhance aerodynamics and reduce rolling resistance.
- Negative Effects: The additional weight of the air lift system components can slightly decrease fuel efficiency. However, the benefits of improved load handling often outweigh this drawback, especially for heavy-duty applications.
Other Suspension Upgrades
There are various other suspension upgrades available, including performance shocks, sway bars, and upgraded control arms. Each of these modifications offers unique benefits and potential drawbacks regarding fuel economy.
Impact on Fuel Economy
- Positive Effects: Performance shocks and sway bars can improve handling and stability, particularly during cornering and off-road driving, leading to more efficient driving behavior and potentially better fuel economy.
- Negative Effects: Upgraded suspension components can add weight to the vehicle, which may negatively impact fuel efficiency. However, this impact is usually minimal compared to the gains in performance and handling.