Fluid · Coolant
Coolant
for 1990 GMC Suburban 6.2L V8 Diesel · 4WD
Fluid Type
Ethylene glycol orange 50/50
Spec: GM 6277M / Dexcool
Capacity
27qt
25.54 L
Drain & Refill
23 qt
21.76 L
Change Interval
100,000 mi
160,900 km
Data quality
Book-style estimate
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Notes
First year of Dexcool in GMT400. Larger capacity for diesel cooling requirements.
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