Fluid · Engine Oil
Engine Oil
for 1987 Buick GNX 3.8L V6 Turbo (GNX) · RWD
Fluid Type
5W-30 conventional or synthetic
Spec: API SF/SG (modern API SN/SP acceptable)
Capacity
5qt
4.73 L
Drain & Refill
5 qt
4.73 L
Change Interval
3,000 mi
4,827 km
Data quality
Book-style estimate
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Notes
Capacity with filter. Turbocharged engine benefits from synthetic oil and frequent changes
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