--- title: "2020 Chevrolet Silverado 1500 Parts and Specs" description: "Everything for the 2020 Chevrolet Silverado 1500: oil type and capacity, battery group size, tire sizes, wiper blades, filters, service schedule, and common problems, verified, sourced, and in one place." url: "https://whichcarparts.com/cars/chevrolet/silverado-1500/2020" updated: "2026-08-20" --- # 2020 Chevrolet Silverado 1500 parts and specs Everything you need to own and maintain this exact model year. Verified specifications, part numbers, and the problems that recur, in one place. T1XX (4th generation), 2019-2025, Full-size half-ton pickup (regular, double, crew cab); interior refresh 2022. ## Quick facts | Quick fact | Value | | --- | --- | | Engine oil | 5W-30, 6 qt (base engine) | | Battery | Group 48 (H6) | | Tire size | 255/70R17 (base trim) | | Wiper blades | 22" / 22" | | Max towing | 13,300 lbs | | Cabin filter | GM 84121219 (some listings cross 13508023) | ## Specifications for the 2019-2025 Silverado 1500 ### Oil & filter Viscosity, capacity, filter part numbers, change interval [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/oil). ### Battery BCI group size, cold cranking amps, AGM or flooded [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/battery). ### Tires & wheels Factory sizes by trim, pressures, bolt pattern, lug torque [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/tires). ### Wiper blades Driver, passenger and rear blade lengths [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/wipers). ### Air & cabin filters Cabin and engine air filter part numbers, locations, intervals [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/filters). ### Bulbs Headlight, fog and marker bulb types [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/bulbs). ### Fluids Transmission fluid, coolant, brake fluid and capacities [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/fluids). ### Service schedule What's actually due at every mileage interval [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/service-schedule). ### Problems & reliability Documented failures, recalls, and which years to avoid [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/common-problems). ### Oil light reset Step-by-step maintenance light reset, no tools [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/oil-reset). ### Key fob battery Which coin cell the remote takes [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/key-fob-battery). ### Specs Towing, weight, fuel tank, fuel economy [Read more](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025/specs). These specifications are shared across every Silverado 1500 of the T1XX (4th generation) generation. See the [2019-2025 Chevrolet Silverado 1500 overview](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019-2025) for the full picture, or the [Chevrolet Silverado 1500 guide](https://whichcarparts.com/cars/chevrolet/silverado-1500) to compare every generation. ## What changed for the 2020 Chevrolet Silverado 1500 | Years | What changed | | --- | --- | | 2020 | 3.0L Duramax LM2 diesel arrives; 6.2L/diesel use the 10L80 10-speed | ## Known problems with the 2020 Chevrolet Silverado 1500 4 of the 6 issues we track for the 2019-2025 generation are documented against the 2020 model year. ### DFM lifter failure (5.3L and 6.2L) (major) Dynamic Fuel Management lifters collapse just like their AFM ancestors: sudden loud tick, flashing check-engine light, misfire on a deactivation cylinder, and possible cam damage. Heaviest complaint volume is 2019-2021; 2021-2023 6.2Ls also had a batch of blocks with oversized lifter bores that GM replaced whole engines for. Out of warranty, a lifter/cam job runs thousands, many buyers check for this before purchase. Typical cost: Free under 5-yr/60k powertrain warranty; $2,500-$5,500 (lifters/cam) or $8,000+ (engine) after. ### 8-speed/10-speed torque-converter shudder (moderate) 8L90-equipped trucks carry the same highway shudder issue as the K2XX; the fix is a flush with Mobil 1 Synthetic LV ATF HP per TSB 18-NA-355 (converters replaced when it persists). The 10L80 is much less shudder-prone but has its own harsh 1-2 shift complaints addressed by software TSBs. TSB 18-NA-355 (8L45/8L90 shudder). Typical cost: $300-$500 fluid exchange; free reflash under warranty. ### 3.0L Duramax high-pressure fuel pump failure / long crank (major) A minority of LM2 diesels suffer high-pressure fuel pump failures that shed metal through the injection system, a multi-thousand-dollar fuel-system rebuild, and a wider group had long-crank/no-start complaints traced to fuel-system and control-module issues (several TSBs). Buy fuel from busy stations, never run the tank near empty, and fix long-crank symptoms promptly. Distinct from the routine 150k oil-pump-belt service. Typical cost: Free under 5-yr/100k diesel powertrain warranty; $8,000-$12,000 fuel-system rebuild out of warranty. ### Duramax oil-pump belt service everyone forgets (moderate) The 3.0L Duramax drives its oil pump with a wet belt at the back of the engine, and GM schedules replacement at 150,000 miles (LM2), a job that requires removing the transmission, typically $1,500-$3,000. The 2023+ LZ0 stretched the interval to 200,000 miles. Not a defect, but a real ownership cost that surprises high-mileage buyers. Typical cost: $1,500-$3,000 at 150k/200k miles. 2 more issues are reported in other 2019-2025 years: 6.2L L87 crankshaft/rod-bearing failure, major recall (2021-2024 (6.2L L87, built Mar 2021-May 2024)); Infotainment freezes and screen blackouts (2022+ refresh) (2022-2023). Full detail, costs and sources on the [Chevrolet Silverado 1500 problems and years to avoid](https://whichcarparts.com/cars/chevrolet/silverado-1500/common-problems) guide. ## Which engines were offered in the 2020 Silverado 1500? | Engine | Trims | Oil | Oil capacity | | --- | --- | --- | --- | | 2.7L Turbo I4 (L3B; 'TurboMax' from 2023) | WT, Custom, LT, RST (base engine) | 5W-30 | 6 qt | | 5.3L EcoTec3 V8 (L84, DFM) | LT, RST, LT Trail Boss, LTZ (volume engine) | 0W-20 | 8 qt | | 6.2L EcoTec3 V8 (L87, DFM) | RST, LTZ, High Country, ZR2 (optional) | 0W-20 | 8 qt | | 3.0L Duramax turbo-diesel I6 (LM2; LZ0 from 2023) | LT, RST, LTZ, High Country (optional; 2020+) | 0W-20 (dexosD) | 7 qt | ## About the Chevrolet Silverado 1500 The Chevrolet Silverado 1500 is GM's full-size half-ton pickup and one of the three best-selling vehicles in America, and the 2012-2025 span covers three distinct trucks. 2L V8s on 5W-30 with 6-quart sumps and cheap PF48 filters. 3L. The K2XX (2014-2018, plus the carryover 2019 'Silverado LD') brought direct-injected EcoTec3 engines with 8-quart V8 sumps, and added the 8L90 8-speed whose torque-converter shudder spawned TSB 18-NA-355 and a class action. 2L V8s for crankshaft/rod-bearing defects. 7 with 140 lb-ft lug torque, both wiper blades are 22 inches, the battery is a Group 48 (H6), and the key fob takes a CR2032. Owners look things up constantly because specs genuinely changed: oil went from 6 qt of 5W-30 to 8 qt of 0W-20 on the V8s in 2014, the diesel takes dexosD-spec oil, and fuel tank and towing figures vary by cab, box, and axle. For how the specifications changed across every generation, see the [full Chevrolet Silverado 1500 guide](https://whichcarparts.com/cars/chevrolet/silverado-1500). ## Other Chevrolet Silverado 1500 years - [2025](https://whichcarparts.com/cars/chevrolet/silverado-1500/2025) - [2024](https://whichcarparts.com/cars/chevrolet/silverado-1500/2024) - [2023](https://whichcarparts.com/cars/chevrolet/silverado-1500/2023) - [2022](https://whichcarparts.com/cars/chevrolet/silverado-1500/2022) - [2021](https://whichcarparts.com/cars/chevrolet/silverado-1500/2021) - [2019](https://whichcarparts.com/cars/chevrolet/silverado-1500/2019) - [2018](https://whichcarparts.com/cars/chevrolet/silverado-1500/2018) - [2017](https://whichcarparts.com/cars/chevrolet/silverado-1500/2017) - [2016](https://whichcarparts.com/cars/chevrolet/silverado-1500/2016) - [2015](https://whichcarparts.com/cars/chevrolet/silverado-1500/2015) - [2014](https://whichcarparts.com/cars/chevrolet/silverado-1500/2014) - [2013](https://whichcarparts.com/cars/chevrolet/silverado-1500/2013) - [2012](https://whichcarparts.com/cars/chevrolet/silverado-1500/2012) Data confidence for this generation: Verified. ## Sources - [GM TechLink, official 2019/2020 engine oil capacity chart (all T1XX engines)](https://gm-techlink.com/wp-content/uploads/2024/11/TechLink-engine-oil-capacities-2019-2020_C.pdf) - [NHTSA Part 573 report, recall 25V-274, 6.2L L87 engine failure](https://static.nhtsa.gov/odi/rcl/2025/RCLRPT-25V274-1598.PDF) - [GM Authority, Silverado/Sierra 6.2L L87 recall coverage](https://gmauthority.com/blog/2025/04/chevy-silverado-gmc-sierra-recalled-for-6-2l-v8-engine-loss-of-propulsion/) - [Blauparts, 2020-2025 Silverado 3.0L LM2/LZ0 oil change kit (dexosD 0W-20)](https://www.blauparts.com/chevrolet-silverado-1500-oil-change-kit-3-0l-lm2-lz0-duramax-diesel-0w20-dexosd.html) - [Duramax Forum, LM2 oil pump belt 150,000-mi service](https://www.duramaxforum.com/threads/oil-pump-belt-on-lm2.1016808/) - [Costa Oils, 2020 Silverado 2.7L (L3B) oil change guide (PF66)](https://costaoils.com/2020-chevrolet-silverado-1500-pickup-2-7l-oil-change-guide/) - [AutoZone, 2020 Silverado 1500 battery fitment (Group 48/H6, AGM)](https://www.autozone.com/batteries-starting-and-charging/battery/chevrolet/silverado-1500/2020) - [Goodyear, 2019 Silverado Custom Trail Boss OE tire (LT275/65R18)](https://www.goodyear.com/en_US/vehicle-search/Chevrolet_Silverado-1500_2019_Custom-Trail-Boss_256968-S-161259) - [Wheel-Size.com, 2019 Silverado 1500 OE fitments](https://www.wheel-size.com/size/chevrolet/silverado-1500/2019/) - [XenonPro, 2019-2021 Silverado bulb size chart (H11 low / 9005 high, halogen trims)](https://www.xenonpro.com/blogs/home/2019-to-2021-chevy-silverado-1500-headlight-bulb-sizes) - [Cox Chevrolet, Silverado 1500 towing capacity by engine/year](https://www.coxchevy.com/manufacturer-information/chevrolet-silverado-1500-towing-capacity/) Specifications vary with engine option, production date, and market.