Fluid · Engine Oil
Engine Oil
for 2003 Chevrolet TrailBlazer 4.2L I6 Vortec · AWD
Fluid Type
5W-30 conventional or synthetic
Spec: API SJ or higher
Capacity
7qt
6.62 L
Drain & Refill
7 qt
6.62 L
Change Interval
5,000 mi
8,045 km
Notes
Capacity includes filter. GM switched to 5W-30 from 10W-30 for this engine.
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