The 2018 Chevrolet Silverado C15 2WD with the 4.3L V6 gets 20 MPG combined. While that’s not going to win any fuel-sipping awards, this configuration is the workhorse, the budget-conscious choice in a lineup of increasingly luxurious and powerful trucks. It’s for the contractor, the small business owner, or the homeowner who needs a dependable truck for occasional heavy lifting without the frills, and without the hefty gas bill of a V8.

City and highway performance

The EPA estimates for the 2018 Silverado C15 2WD, equipped with the 4.3L V6 and six-speed automatic, are 18 MPG in the city and 24 MPG on the highway. The relatively simple engine and smooth-shifting transmission make for predictable and manageable power delivery, which translates to consistent fuel economy in both environments. Highway driving shines, letting the engine settle into a comfortable cruise and use the aerodynamic advantages (or disadvantages, depending on how you look at it) of a pickup truck. City driving, with its stop-and-go nature, naturally takes a hit, but the V6 isn’t excessively thirsty when driven carefully.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,200 for this particular Silverado configuration. This figure is based on driving 15,000 miles per year and using national average fuel prices. Your actual cost will vary depending on your driving habits, fuel prices in your area, and how much you actually drive. Consider it a reasonable benchmark for comparing against other vehicles. Find all all Chevrolet fuel economy data in our database.

Real-world expectations

The EPA provides a standardized test, but real-world mileage can differ. Owners of the 2018 Silverado 4.3L V6 often report figures that hover around the EPA estimates, with some exceeding the 24 MPG highway figure on longer, flatter drives. Aggressive driving, frequent towing, and heavy cargo loads will inevitably push the numbers down. Regular maintenance, including tire inflation and air filter replacement, also plays a critical role in maintaining optimal fuel efficiency. The six-speed transmission, a unit with a history of reliability, also helps deliver predictable MPG.

How it compares

The 2018 Silverado 4.3L V6 exists in a competitive segment. A similarly equipped Ford F-150 with the 3.3L V6, for example, achieves roughly comparable fuel economy, at around 19 MPG combined. A Ram 1500 with the 3.6L V6 might offer slightly better mileage, potentially reaching 21 MPG combined, depending on configuration. The difference often comes down to specific driving styles and intended usage. To the buyer prioritizing affordability and basic truck functionality, these slight MPG variations are less important than upfront cost and overall reliability. Compare to the SILVERADO MPG across all years.

Tips to maximize efficiency

Pay attention to tire pressure. Ensuring your tires are properly inflated according to the door placard reduces rolling resistance, which directly improves fuel economy. Regularly checking and topping off the air pressure can make a noticeable difference, especially on longer trips. Aim for the high end of the recommended pressure range.

Lighten the load. Carrying unnecessary weight in the bed of your truck decreases fuel efficiency. Remove any tools, equipment, or materials that aren’t needed for the current trip. You’ll be surprised how much of a difference a few hundred pounds can make, especially in city driving.

Anticipate traffic and drive smoothly. Avoid aggressive acceleration and braking. A smooth, steady driving style minimizes fuel consumption. Look ahead, anticipate traffic flow, and maintain a consistent speed whenever possible. Using cruise control on the highway can also help maintain a steady pace and improve fuel efficiency.

Consider using a tonneau cover. While the impact on fuel economy is debated, some tests suggest that covering the bed of your truck with a tonneau cover can improve aerodynamics and slightly increase MPG at highway speeds. The benefits are most noticeable at higher speeds and in windy conditions. Even a modest increase in MPG can add up over time.