How much fuel do modified off-road trucks lose? Let's find out!

TLDRIn this episode, we test the fuel efficiency of modified off-road trucks on a highway loop. We compare a lifted GMC Sierra 1500 with a Ford Superduty F-350 Lariat Crew Cab. The GMC has a 3.0L Duramax turbo diesel engine, while the Ford has a 6.7L Power Stroke turbo diesel V8. We measure their MPG and calculate the percentage of fuel loss compared to stock versions of the same trucks. Watch to find out the results!

Key insights

🚚Modified off-road trucks can experience a decrease in fuel efficiency due to factors like increased weight, taller suspensions, and larger tires.

The fuel efficiency of a lifted truck depends on various factors, including engine specifications, tire size, suspension modifications, and driving conditions.

🌐The Denver 100 Loop is a highway test route used to measure the fuel efficiency of vehicles. It provides a realistic representation of MPG under different driving conditions.

💰Upgrading to a larger, lifted truck with off-road modifications can result in higher fuel costs. It's important to consider the trade-off between enhanced capability and decreased fuel efficiency.

📊By comparing the MPG of modified trucks with stock versions, we can quantify the impact of off-road modifications on fuel consumption and provide insights for potential buyers.

Q&A

Do modified trucks always have lower fuel efficiency?

Not necessarily. The fuel efficiency of a modified truck depends on many factors, including the specific modifications made, driving conditions, and individual driving habits.

Can aftermarket suspension systems affect fuel efficiency?

Yes, aftermarket suspension systems, especially taller ones, can increase vehicle weight and aerodynamic drag, leading to decreased fuel efficiency.

Are larger tires always worse for fuel efficiency?

Larger tires can increase rolling resistance, which can result in decreased fuel efficiency. However, advancements in tire technology have minimized this impact to some extent.

Is it worth sacrificing fuel efficiency for better off-road capability?

The trade-off between fuel efficiency and off-road capability depends on individual preferences and usage requirements. Some enthusiasts prioritize enhanced performance and capability over fuel economy.

Can fuel efficiency be improved in modified trucks?

There are ways to improve fuel efficiency in modified trucks, such as optimizing engine performance, reducing weight, using aerodynamic accessories, and maintaining proper tire pressure.

Timestamped Summary

00:00Introduction and overview of the test: comparing the fuel efficiency of modified off-road trucks.

02:32Detailed specifications of the tested trucks: GMC Sierra 1500 with a 3.0L Duramax diesel engine and Ford F-350 Lariat Crew Cab with a 6.7L Power Stroke diesel V8.

08:00Discussion of modifications in the tested trucks, including lifted suspensions, larger tires, and aftermarket suspension systems.

10:49Comparison of fuel efficiency results: MPG calculations for the GMC Sierra and Ford F-350, and percentage of fuel loss compared to stock versions.

12:40Final thoughts on the trade-off between off-road capability and fuel efficiency in modified trucks.