17 MPG combined might seem low, but for the 2020 Chevrolet Silverado 4WD with the 4.3L V6, it shows what the priorities are. This isn’t a truck bought for saving on fuel; it’s a workhorse chosen for its capability and affordability. It’s the entry point to the Silverado family, appealing to budget-conscious buyers who need a truck bed, decent towing capacity, and the reliability of a Chevy. These owners are often willing to accept lower fuel economy in exchange for a lower initial price and proven mechanicals.

City and highway performance

The EPA estimates the Silverado 4WD 4.3L V6 at 15 MPG in the city and 20 MPG on the highway. The city figure reflects the stop-and-go driving and idling that naturally hampers fuel efficiency. The 20 MPG highway rating is more achievable on longer trips at steady speeds, but even then, factors like wind resistance and payload will have a noticeable impact. The 6-speed automatic transmission does what it can to optimize fuel use, but it is a relatively basic unit compared to the 8- or 10-speed gearboxes found in higher trims and competitor vehicles. Its age shows in both performance and MPG figures.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2020 Chevrolet Silverado 4WD 4.3L V6 at $2,600. This figure is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway, using national average fuel prices at the time of calculation. While that number provides a benchmark, individual fuel costs will vary depending on driving habits, local fuel prices, and the specific mix of city versus highway driving the owner experiences. If you tow frequently, expect that $2,600 number to climb substantially.

Real-world expectations

While the EPA estimates provide a useful comparison tool, real-world fuel economy for the 2020 Chevrolet Silverado 4WD 4.3L V6 can vary. Drivers who frequently haul heavy loads or navigate challenging terrain will likely see numbers below the EPA estimates. Conversely, those who primarily use the truck for commuting on relatively flat highways might achieve slightly better fuel economy.

Consistent maintenance, including proper tire inflation and regular oil changes, plays a critical role in maintaining optimal fuel efficiency. Aggressive driving habits, such as rapid acceleration and hard braking, will also negatively impact fuel economy. So, while 17 MPG is the official number, prepare for a range depending on your individual usage.

How it compares

Compared to other full-size trucks, the 2020 Chevrolet Silverado 4WD 4.3L 6-cyl’s fuel economy is generally on the lower end, but not drastically so. A similarly equipped 2020 Ford F-150 with the 3.3L V6 and 4WD achieves an EPA-estimated 19 MPG combined. The Ram 1500 Classic with the 3.6L V6 and 4WD nets around 18 MPG combined. These slight differences become more critical for high-mileage drivers, but for those using the Silverado primarily for occasional hauling or weekend projects, the initial cost savings might outweigh the long-term fuel expense. You can get all Chevrolet fuel economy data on our site.

Tips to maximize efficiency

While the 2020 Chevrolet Silverado 4WD 4.3L 6-cyl prioritizes capability over fuel economy, there are still steps you can take to minimize fuel consumption. The most important is to drive smoothly, avoiding sudden acceleration and braking. The 4.3L V6 is at its least efficient when pushed hard, so gentle throttle inputs will make a difference.

Tire pressure is often overlooked, but properly inflated tires reduce rolling resistance and improve fuel economy. Check your tire pressure regularly and inflate them to the recommended levels listed on the doorjamb sticker.

Minimize unnecessary weight. The heavier the load you’re carrying, the more fuel the engine will consume. Remove any unnecessary cargo from the truck bed or cab. Even seemingly small items can add up and decrease fuel efficiency. Consult SILVERADO MPG across all years to compare efficiencies across trims and model years.

Reduce idling time. Idling consumes fuel without covering any distance. If you’re going to be stopped for more than a minute or two, turn off the engine. This especially applies in colder weather when people are more likely to let their trucks idle to warm up.

Consider using cruise control on the highway. Maintaining a consistent speed can help you optimize fuel economy, especially on long trips. Avoid constantly speeding up and slowing down, as this burns more fuel.