Fluid · Coolant
Coolant
for 2003 Chevrolet Suburban 2500 6.0L V8 Vortec · 4WD
Fluid Type
DEX-COOL extended-life 50/50
Spec: GM 6277M (DEX-COOL)
Capacity
18qt
17.03 L
Drain & Refill
15.01 qt
14.2 L
Change Interval
150,000 mi
241,350 km
Data quality
✓ Verified
Cross-checked against OEM or multiple independent sources.
Notes
First change at 5 years/150k miles, then every 5 years
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