The complete T1XX Chevy Silverado 1500 maintenance schedule for 2019–2025—covering the 5.3L and 6.2L V8, 2.7L Turbo, and 3.0L Duramax with oil-life monitor timing, ACDelco filter numbers by engine, and how towing and diesel service change the chart. Track engine-specific items in Carmainty so V8, Turbo, and Duramax jobs never get mixed up.
Quick reference
Factory-recommended intervals for the 2019–2025 Silverado 1500 under normal driving. GM’s Engine Oil Life System adjusts oil timing from real use—treat mileage figures as maximums, not fixed targets. See the towing and Duramax sections for severe-condition adjustments.
| Interval | Service item | Notes & ACDelco |
|---|---|---|
| Oil life monitor / ≤12 mo | Engine oil & filter | V8 PF63/PF63E · 2.7 PF66 · Duramax PF26 (verify) · reset oil life after |
| Every oil change | Tire rotation | Every ~7,500 mi (12,000 km) · check tire pressure and matched tread on 4WD |
| Every 6 months | Visual brake inspection | Pads/rotors · towing and heavy payloads accelerate wear |
| 15,000–25,000 mi (24,000–40,000 km) | Cabin air filter | Confirm by VIN / GMParts · jobsite trucks often annual |
| 30,000–45,000 mi (48,000–72,000 km) | Engine air filter | V8: 84121219 (early 23349505) · inspect at half interval if dusty |
| 30,000 mi (48,000 km) | Brake fluid inspection | Replace if contaminated · sooner if towing |
| 30,000–45,000 mi (48,000–72,000 km) | Front / rear axle & transfer case (4WD) | Inspect · replace sooner if towing or off-road |
| 45,000–100,000 mi (72,000–160,000 km) | Spark plugs — 5.3 / 6.2 V8 | 41-114 · qty 8 · replace on engine chart or at misfire |
| Severe: ~45,000–60,000 mi (72,000–96,000 km) | Automatic transmission fluid | Don’t rely on “lifetime” if towing · confirm fluid spec by VIN |
| Every 5 years / by chart | Engine coolant | Confirm interval in owner’s manual · sooner if towing |
| Every 2–3 years | Brake fluid replacement | DOT 3 · sooner if towing or humid climates |
| Duramax only | Fuel filter service | Confirm by VIN / GMParts · shorter clock under severe use |
| Duramax only | DEF level & quality | Keep DEF topped off · use fresh, sealed DEF |
Engine-specific — don’t mix up your parts
Three very different engines mean different oil filters, different oil chemistry, and different capacities. Using the wrong filter—or gas oil in a Duramax—is one of the most common DIY mistakes on this generation.
WT · Custom · LT · RST · LTZ · High Country · Trail Boss
PF63 / PF63E (GM 12735811)41-114 · qty 8Engine air element 84121219 on many builds; early production may use 23349505.
LT · RST · Custom Trail Boss · LT Trail Boss
PF66PF66 is not interchangeable with the V8 filter—do not substitute PF63.
LT · RST · LTZ · High Country (2020+)
PF26 (verify current PN)Never use gas-engine dexos1 oil in the Duramax or mix diesel and gas oil chemistries.
Detailed schedule
Expand each item for OEM numbers, capacities, and owner notes. Always confirm fitment for your year, engine, and drivetrain.
Per Engine Oil Life System
Every 2019–2025 Silverado 1500 uses GM’s Engine Oil Life System—it tracks revolutions, temperature, and trip patterns instead of a fixed mileage counter. Easy highway use often lands between 7,500 and 10,000 miles (12,000–16,000 km); towing, short cold trips, or dusty work can trigger closer to 5,000. Change oil at least once a year even if the monitor hasn’t hit zero.
Gas V8 and 2.7 Turbo typically want 0W-20 dexos1. The 3.0 Duramax uses dexosD diesel oil—do not mix chemistries. Capacities are often ~8 qt (~7.6 L) on 5.3/6.2 and ~6 qt (~5.7 L) on 2.7 Turbo; confirm in your owner’s manual.
PF63 / PF63EACDelco · GM 12735811 family on many 2019–2025 V8 trucks.
PF66Different from V8—confirm before ordering.
PF26 (verify current PN)Diesel-specific filter and oil (dexosD).
Every oil service
Rotate about every oil change (~7,500 mi (12,000 km)) and measure tread. 4WD trucks that see mixed pavement and dirt need matched tread depths across all four corners. Inspect pads and rotors every six months—towing and heavy payloads accelerate wear.
Every 15,000–25,000 miles (24,000–40,000 km)
Replace every 15,000–25,000 miles (24,000–40,000 km) or annually, whichever comes first. Signs it’s overdue: weak HVAC airflow, musty smell with A/C on, or dust pouring from vents. Jobsite trucks and pollen seasons often justify an annual swap.
Confirm by VIN / GMPartsPart number varies by trim and model year—verify at https://store.gmparts.com/ before ordering.
Every 30,000–45,000 miles (48,000–72,000 km)
V8 trucks often cite ~45,000 miles (72,000 km) under normal conditions; dusty use means inspect at half that. 2.7 Turbo and Duramax air boxes differ—order by VIN. A restricted filter on a turbo engine costs boost response and fuel economy.
84121219Common T1XX V8 element; earlier 23349505 on some builds.
Confirm by VIN / GMPartsDifferent housings from the V8—do not assume 84121219.
Per engine chart (~45k–100k)
V8 iridium plugs are often ACDelco 41-114 (qty 8). Replace on the mileage chart for your engine—or earlier with misfires, rough idle, or sustained towing heat. The 2.7 Turbo has its own plug spec; confirm by VIN. The Duramax has no spark plugs.
41-114ACDelco · qty 8 · verify gap/torque.
Confirm by VIN / GMPartsDo not use V8 plugs.
Severe service / high mileage
Towing, commercial use, and deep water mean earlier transmission, axle, and transfer-case fluid changes than the “normal” chart. Many owners service ATF around 45,000–60,000 miles (72,000–96,000 km) under severe use rather than trusting a “lifetime” fill. Inspect axle fluids around 30,000 miles (48,000 km) and replace if discolored or after hard off-road use.
Fluid specs differ by transmission and axle—confirm by VIN / GMParts before buying fluid.
If you actually use your truck
GM’s standard intervals assume normal driving. Regular towing, heavy loads, jobsite dirt, short trips, or extreme climates count as severe use—and the schedule shortens. This is where many Silverado owners under-maintain the truck.
3.0L Duramax Turbo-Diesel
The 3.0L Duramax shares the Silverado platform but adds diesel-specific service: dexosD oil and its own PF26-family filter, fuel filter service, and DEF. Do not apply the gas-engine chart blindly.
Diesels punish neglected fuel and oil. Short trips, idling, and towing all count as severe use—shorten oil intervals and watch fuel-filter and water-in-fuel warnings.
Master reference
| Service | OEM / ACDelco | Notes |
|---|---|---|
| Oil filter — 5.3 / 6.2 V8 | PF63 / PF63E | GM 12735811 family |
| Oil filter — 2.7 Turbo | PF66 | Not for V8 |
| Oil filter — 3.0 Duramax | PF26 (verify) | dexosD oil |
| Engine air filter — V8 | 84121219 | Early builds may use 23349505 |
| Engine air filter — 2.7 / Duramax | Confirm by VIN / GMParts | Different housings |
| Cabin air filter | Confirm by VIN / GMParts | Varies by trim / year |
| Spark plugs — 5.3 / 6.2 V8 | 41-114 | Qty 8 · verify gap/torque |
| Spark plugs — 2.7 Turbo | Confirm by VIN / GMParts | Not the V8 plug |
| Duramax fuel filter | Confirm by VIN / GMParts | Do not guess PN |
| Engine oil — gas | 0W-20 dexos1 | ~8 qt (~7.6 L) V8 · ~6 qt (~5.7 L) 2.7 |
| Engine oil — Duramax | dexosD diesel | Confirm capacity in manual |
The real math
Wrong oil/filter on Duramax or 2.7 → engine damage
Vs. matching PF63 / PF66 / diesel filter correctly
Engine repair
Overdue oil on the 2.7 Turbo → turbo / timing issues
Vs. monitor-based (or 5–7.5k tow) oil changes
$3,000–$8,000+
Neglected ATF under tow load → transmission failure
Vs. a fluid service around 45–60k severe
$4,000–$6,000+
Dusty air filter ignored → premature wear
Vs. inspecting at half interval
Thousands in wear
Overdue plugs → misfire / converter risk
Vs. a full plug set
$1,000–$3,000+
People also ask
When the oil-life monitor says so—commonly 5,000–10,000 miles (8,000–16,000 km)—and at least once a year. Towing, short trips, and dusty work favor the short end; many owners of the 2.7 Turbo and Duramax prefer 5,000–7,500 miles (8,000–12,000 km). Always reset the monitor after the change.
5.3/6.2 V8: ACDelco PF63/PF63E (GM 12735811 family). 2.7 Turbo: PF66. 3.0 Duramax: diesel-specific filter (often PF26 family—verify the current part number). Never mix them; confirm by VIN.
Gas engines typically use 0W-20 meeting dexos1. The 3.0 Duramax needs dexosD diesel oil. Check the filler cap and owner’s manual. Capacities are roughly 8 qt (7.6 L) on the 5.3/6.2 V8 and 6 qt (5.7 L) on the 2.7 Turbo.
Many 5.3L and 6.2L V8 trucks use ACDelco 41-114 iridium plugs (qty 8). Replace per your engine’s mileage chart or sooner with misfires. The 2.7 Turbo uses a different plug—confirm by VIN / GMParts. The Duramax diesel has no spark plugs.
Yes. Under severe/towing use: oil every 5,000–7,500 miles (8,000–12,000 km), transmission fluid around 45,000–60,000 miles (72,000–96,000 km) (don’t rely on “lifetime” ATF), inspect axle fluids every 30,000 miles (48,000 km), transfer case sooner on 4WD, and brake fluid about every 2 years.
Many T1XX V8 trucks use engine air filter 84121219 (earlier builds sometimes 23349505). Cabin filter and 2.7 Turbo / Duramax air filter numbers vary—confirm by VIN / GMParts at https://store.gmparts.com/ rather than guessing.
Use dexosD diesel oil with the diesel-specific filter, service the fuel filter on the interval for your VIN (shorter under severe use), keep DEF topped off, and shorten oil intervals when towing or doing lots of short trips. Confirm fuel filter part numbers by VIN / GMParts.
Yes—Carmainty lets you log mileage, set reminders for each interval on this page, attach receipts, and track multiple vehicles. Free to download on the App Store and Google Play.