Fluid · Coolant
Coolant
for 1990 Buick Riviera 3.8L Supercharged V6 · FWD
Fluid Type
Ethylene glycol 50/50
Spec: GM 6038M or equivalent
Capacity
13.5qt
12.77 L
Drain & Refill
11.5 qt
10.88 L
Change Interval
30,000 mi
48,270 km
Data quality
Book-style estimate
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Notes
Standard green coolant, not Dexcool for 1990. Supercharged engine may have slightly higher capacity