If you're searching for a capable, fuel-efficient diesel truck, this 2021 Chevrolet Silverado 1500 RST Crew Cab for sale at CARTIME in South Gate, California is worth a serious look. With a turbocharged 3.0-liter inline-six diesel engine, a 10-speed automatic transmission, and 4WD capability, this Silverado punches well above its weight class — and it's available right now at one of Los Angeles County's most trusted used truck dealerships.

About This 2021 Chevrolet Silverado 1500 RST

This 2021 Silverado 1500 RST Crew Cab comes with 110,325 miles on the odometer — a respectable figure for a diesel-powered truck designed to go the distance. Diesel engines are built for high mileage, and Chevy's Duramax 3.0L turbodiesel is widely regarded as one of the best light-duty diesel powerplants on the market today. The crew cab configuration means four full-size doors and genuine rear-seat space, making this a truck that works equally well for families and job sites. The 5¾-foot bed offers solid cargo capacity for weekend hauls, contractor gear, or recreational equipment.

2021 Chevrolet Silverado 1500 Performance and Engine

Duramax 3.0L Turbodiesel Six-Cylinder

Under the hood sits Chevrolet's 3.0-liter turbodiesel inline-six, a sophisticated engine that produces around 277 horsepower and 460 lb-ft of torque. That torque figure is what diesel drivers live for — deep, confident pulling power that makes towing trailers, boats, or equipment feel effortless. This engine is paired with a 10-speed automatic transmission with overdrive, which keeps RPMs low on the highway and contributes to genuinely impressive fuel economy for a full-size truck. Real-world highway figures regularly land in the 28–33 MPG range, which means fewer fuel stops and lower running costs over time.

The 4WD drivetrain makes this Silverado ready for anything Southern California can throw at it — whether that's hauling gear up into the San Gabriel Mountains, navigating muddy job sites in the Inland Empire, or driving through unexpected winter conditions in the local foothills.

Silverado 1500 RST Features and Interior

What the RST Trim Brings to the Table

The RST — Rally Sport Truck — trim is designed to deliver a sportier, blacked-out aesthetic without sacrificing comfort or technology. Inside, you can expect Chevrolet's Infotainment 3 system with a responsive touchscreen, Apple CarPlay and Android Auto compatibility, Bluetooth connectivity, and available wireless charging. The crew cab layout provides a spacious rear bench seat, ideal for passengers or extra storage. Driver-assistance features standard on this generation's Silverado include forward collision alert, lane keep assist, and a rear vision camera.

The RST trim also brings exterior upgrades including black accents, premium wheels, and a distinctive appearance that separates it visually from the standard work-truck trims.

Silverado 1500 Reliability and Ownership

The 2021 Silverado 1500 with the Duramax diesel is widely praised by owners and automotive reviewers alike. Unlike gasoline half-ton trucks that can feel strained under load, the Duramax makes towing up to 9,500 lbs feel routine. Owners consistently report strong long-term durability from this powertrain, and diesel engines as a category tend to outlast their gasoline counterparts when properly maintained.

Common owner feedback highlights the smooth ride quality, excellent highway fuel economy, and the quiet, refined feel of the diesel compared to older oil-burners. At 110,000-plus miles, a well-maintained Duramax diesel is still very much in its working life — many examples go well past 200,000 miles with routine oil changes and fuel filter maintenance. If you're buying a used diesel truck, checking the service history for regular maintenance is always recommended.

Why Buy From CARTIME in South Gate, California

CARTIME is located in South Gate, in the heart of Los Angeles County, and has built a reputation as a no-hassle destination for quality used vehicles throughout the greater LA area. The dealership stocks a wide variety of cars, trucks, and SUVs, and the sales team is focused on making the buying process transparent and straightforward — no pressure, no hidden fees. Whether you're coming in from nearby Lynwood, Huntington Park, Downey, Bell, or Compton, CARTIME is centrally positioned for buyers across Southeast Los Angeles County.

Financing a Used Chevrolet Silverado Near South Gate

Financing a used diesel truck doesn't have to be complicated. CARTIME works with a range of lenders to help buyers throughout Los Angeles County find a payment that fits their budget — whether your credit is excellent, fair, or still being rebuilt. Used truck financing is available for a variety of situations, and the team at CARTIME can walk you through your options quickly. Getting pre-approved before your visit is a great way to speed up the process, and the dealership's finance team is available to answer questions and help you understand your loan terms before you sign anything.

Frequently Asked Questions

Is the 2021 Chevrolet Silverado 1500 Duramax a good buy?

Yes — the 2021 Silverado 1500 with the 3.0L Duramax diesel is considered one of the best values in the used full-size truck market. It offers rare fuel efficiency for a full-size truck, strong towing capacity, and a powertrain known for long-term durability.
 

How many miles is too many on a diesel Silverado?

Diesel engines are engineered for high mileage. A well-maintained Duramax 3.0L can realistically last 200,000–300,000 miles. At 110,325 miles, this truck is considered mid-life for a diesel — plenty of working years remain with proper care.
 

What does the Silverado RST trim include?

The RST trim adds sport-inspired exterior styling with black accents and upgraded wheels, an enhanced infotainment system, Apple CarPlay, Android Auto, and driver safety features like forward collision alert and lane keep assist. It sits above the LT in Chevrolet's trim hierarchy and focuses on appearance and technology.
 

Does the 2021 Silverado 1500 have real four-wheel drive?

Yes. This Silverado is equipped with a proper 4WD system, giving you the ability to engage four-wheel drive for off-road driving, towing on loose surfaces, or navigating difficult terrain. It's a selectable system designed for both on-road and off-road confidence.
 

What kind of fuel does the 2021 Silverado 1500 Duramax use?

This truck runs on diesel fuel. Diesel is widely available throughout the Los Angeles area, and the fuel economy advantage over gasoline trucks — often 30% or more on the highway — makes the Duramax a smart long-term choice for high-mileage drivers and frequent towers.

Serving South Gate and Surrounding Areas of Los Angeles County

CARTIME in South Gate serves truck buyers from across Southeast and Central Los Angeles County. Customers regularly make the trip from Downey, Lynwood, Huntington Park, Bell Gardens, Cudahy, Maywood, Vernon, Hawthorne, Gardena, and Inglewood. South Gate is easily accessible from the I-710 and I-105 corridors, making CARTIME a convenient stop for buyers throughout the broader LA metro area — from Long Beach to East Los Angeles and everywhere in between.

Contact CARTIME Today

Ready to get behind the wheel of this 2021 Chevrolet Silverado 1500 RST Duramax Diesel? Call CARTIME today at (323) 508-2931 to check availability, ask about current pricing, or schedule a test drive. You can also stop by our South Gate location in Los Angeles County to see this truck in person. The inventory moves fast — don't wait too long on a diesel Silverado at this mileage and trim level.