2003 Chevrolet Trailblazer
Maintenance & specsVERIFIED Oct 31, 2026
The 2003 Chevrolet Trailblazer takes 5W-30 Full Synthetic with a total capacity of 5 quarts (filter included). The OEM oil filter is the ACDelco UPF46R, with 1 compatible alternative listed below. Note: this vehicle has 8 active recalls — check the recalls section below. Below you’ll find complete maintenance specs, fluid capacities, parts, and links to buy what you need.
⚑ QUICK DIY TIPS FOR THE 2003 CHEVROLET TRAILBLAZER
- Using the OEM filter (ACDelco UPF46R) is recommended for warranty compliance.
- Always use 5W-30 Full Synthetic as specified by Chevrolet — using the wrong viscosity can void your powertrain warranty.
- Check the maintenance schedule below for your next service interval.
01
Oil & Filter
OilBuy
Viscosity5W-30
Oil typeFull Synthetic
Capacity (with filter)5 qt
Capacity (w/o filter)4.7 qt
OEM specdexos1 Gen 3
Filter Options
ACDelcoUPF46ROEM
BuyACDelcoPF61EOEM
BuyACDelco UPF46R oil filter (GM part 19545549, Gold line); gmpartsgiant lists 1996-2002 Chevrolet Cavalier 4 Cyl 2.4L as 25329389 -> 19545549W
Drain Bolt & Hardware
Drain bolt specs not yet added.
02
Fluid Specifications
Transmission FluidBuy
TypeDexron VI
Capacity4 qt
Change interval60,000 mi
Brake FluidBuy
DOT typeDOT 3
Change interval45,000 mi
CoolantBuy
TypeDex-Cool
ColorOrange
Capacity7.5 qt
Change interval100,000 mi
Power Steering FluidBuy
TypeGM Power Steering Fluid
Differential Fluid (rear)Buy
Type75W-90 GL-5
Capacity2 qt
Change interval60,000 mi
03
Parts & Specifications
Spark Plugs
TypeIridium
Gap0.040
Quantity4
Change interval100,000 mi
Tires
Size245/60R18
Front pressure33 PSI
Rear pressure33 PSI
04
Maintenance Schedule
≈ every 6 months
- ▸Change Engine Oil & Filter
05
Torque Specifications
06
Safety Recalls
807
Technical Service Bulletins
299Estimated Current Value
Original MSRP
$30,000
Private Party
$2,565–$2,835
Dealer Retail
$2,970–$3,375
Trade-In
$2,295–$2,565
Depreciation
91%
Estimated values assume average condition and mileage for vehicle age.
Source: estimated
Save by doing it yourself
A shop typically charges $70–$140 for this service. Buy the parts and save.
08
Tools & Supplies
Shop parts for the Chevrolet Trailblazer
Find oil, filters, and maintenance parts for the 2003 Chevrolet Trailblazer on Amazon.
Other 2003 Chevrolet models
Other Chevrolet Trailblazer years
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