2018 Chevrolet Silverado 1500 Specs
The 2018 Silverado 1500, the last year of the third generation, is covered here with the 285 hp 4.3L V6 and the 355 hp 5.3L V8. Both take dexos1 oil; the V6 holds 6 quarts of 5W-30 and the V8 8 quarts of 0W-20. Chevrolet rates the 5.3L V8 at up to 11,100 lb of towing.
2 versions · 3rd gen (K2XX) · Updated Oct 2026
- Oil capacity
- 6.0–8.0 qt
- by version ↓
- Tire size
- P255/70R17
- MPG combined
- 19–20 mpg
Versions #versions
Compare versions #compare
Recalls #recalls
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Roof rail air bag inflator may rupture
NHTSA 26V325000 · May 21, 2026 · Roof rail air bags
The end cap of a left or right roof rail air bag inflator may come off, or the inflator wall may rupture.
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Roof rail air bag inflator may rupture
NHTSA 26V166000 · Mar 19, 2026 · Roof rail air bags (Crew Cab)
On Crew Cab trucks, the end cap of a roof rail air bag inflator may come off, or the inflator wall may rupture.
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Roof rail air bag inflator may rupture
NHTSA 25V432000 · Jun 26, 2025 · Roof rail air bags (Crew Cab)
On Crew Cab trucks, the end cap of a roof rail air bag inflator may come off, or the inflator wall may rupture.
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Roof rail air bag inflator may rupture
NHTSA 24V756000 · Oct 10, 2024 · Roof rail air bags (Crew Cab)
On Crew Cab trucks, the end cap of a roof rail air bag inflator may come off, or the inflator wall may rupture.
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Brake assist may weaken over time
NHTSA 20V603000 · Oct 1, 2020 · Brake vacuum pump (5.3L, 6.2L)
On trucks with the 5.3L or 6.2L V8, the output of the mechanical vacuum pump can drop over time, reducing power brake assist.
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Failed wheel-speed sensor may trigger driveline protection
NHTSA 19V761000 · Oct 24, 2019 · Wheel speed sensor (5.3L 4WD)
On 4WD trucks with the 5.3L and a 3.08 rear axle, a failed wheel-speed sensor at 41–60 mph in 4WD or Auto mode can make the brake control software engage the driveline-protection system.
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Brake vacuum pump output may drop
NHTSA 19V645000 · Sep 6, 2019 · Brake vacuum pump
The amount of vacuum the vacuum pump creates for the brakes may decrease over time.
FAQ
What is the lug nut torque on a 2018 Silverado 1500?
Chevrolet specifies 140 lb-ft for the wheel nuts.
How big is the gas tank on a 2018 Silverado 1500?
26 gallons with the standard or short box and 34 gallons with the long box.
How long is a 2018 Silverado 1500?
From 205.6 in for the shortest Regular Cab to 239.6 in for a Crew Cab with the 6.5-foot box, and 80.0 in wide without mirrors.
Sources: 2018 Chevrolet Silverado Owner's Manual, Edmunds 2018 Chevrolet Silverado 1500 features & specs (curb weight, base tire sizes), 2018 Chevrolet Silverado 1500 brochure (horsepower, torque, max towing, length, width), EPA fueleconomy.gov, NHTSA recalls. Updated Oct 2026.