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Buick Roadmaster

Maintenance specs for 2 variants of the Buick Roadmaster — from 1991 to 1996.

19911993 Buick Roadmaster

5.0L V8 (L03 305 TBI) · RWD

170 hp / 255 lb-ft

Engine Oil

Weight5W-30
Capacity5 qt
FilterPF35

Transmission

Type4-Speed Automatic (4L60)
FluidDexron III
Drain & fill5 qt
Full capacity11 qt

Coolant

TypeConventional (green)
Capacity16 qt
Shop coolant

Brake Fluid

TypeDOT 3
Shop DOT 3

Power Steering

TypeHydraulic
FluidGM Power Steering Fluid

Differentials

Rear fluid80W-90 GL-5

Fuel

Tank23 gal
TypeRegular 87

Tires

Size225/70R15
Pressure (front)32 PSI
Pressure (rear)32 PSI
Shop 225/70R15 tires

Battery

Group size75
CCA770 A
Shop group 75 battery

Spark Plugs

Gap0.035 in
Shop spark plugs

Wiper Blades

Driver22"
Passenger22"
Shop wiper blades

Service Intervals

Oil change3,000 mi
Trans service30,000 mi
Coolant flush30,000 mi
Spark plugs30,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt45,000 mi

19941996 Buick Roadmaster

5.7L V8 (LT1) · RWD

260 hp / 330 lb-ft

Engine Oil

Weight5W-30
Capacity5 qt
FilterPF35

Transmission

Type4-Speed Automatic (4L60-E)
FluidDexron III
Drain & fill5 qt
Full capacity11 qt

Coolant

TypeConventional (green)
Capacity16.5 qt
Shop coolant

Brake Fluid

TypeDOT 3
Shop DOT 3

Power Steering

TypeHydraulic
FluidGM Power Steering Fluid

Differentials

Rear fluid80W-90 GL-5

Fuel

Tank23 gal
TypeRegular 87

Tires

Size225/70R15
Pressure (front)32 PSI
Pressure (rear)32 PSI
Shop 225/70R15 tires

Battery

Group size75
CCA770 A
Shop group 75 battery

Spark Plugs

Gap0.05 in
Shop spark plugs

Wiper Blades

Driver22"
Passenger22"
Shop wiper blades

Service Intervals

Oil change3,000 mi
Trans service30,000 mi
Coolant flush30,000 mi
Spark plugs30,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt45,000 mi