Buick Regal
Maintenance specs for 11 variants of the Buick Regal — from 1985 to 2020.
1985–1987 Buick Regal
3.8L V6 (LC2 3800) · RWD
150 hp / 200 lb-ft
Transmission
Type4-Speed Automatic (200-4R)
FluidDexron III
Drain & fill5 qt
Full capacity11 qt
Power Steering
TypeHydraulic
FluidGM Power Steering Fluid
Differentials
Rear fluid80W-90 GL-5
Fuel
Tank18.1 gal
TypeRegular 87
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
1988–1996 Buick Regal
3.1L V6 (L82/LH0) · FWD
160 hp / 185 lb-ft
Transmission
Type4-Speed Automatic (4T60-E)
FluidDexron III
Drain & fill6 qt
Full capacity12 qt
Power Steering
TypeHydraulic
FluidGM Power Steering Fluid
Fuel
Tank17.1 gal
TypeRegular 87
Service Intervals
Oil change3,000 mi
Trans service50,000 mi
Coolant flush60,000 mi
Spark plugs60,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt60,000 mi
1988–1996 Buick Regal
3.8L V6 (L27 3800) · FWD
170 hp / 220 lb-ft
Transmission
Type4-Speed Automatic (4T60-E)
FluidDexron III
Drain & fill6 qt
Full capacity12 qt
Power Steering
TypeHydraulic
FluidGM Power Steering Fluid
Fuel
Tank17.1 gal
TypeRegular 87
Service Intervals
Oil change3,000 mi
Trans service50,000 mi
Coolant flush60,000 mi
Spark plugs60,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt60,000 mi
1997–2004 Buick Regal
3.8L Supercharged V6 (L67 3800 Series II SC) · FWD
240 hp / 280 lb-ft
Transmission
Type4-Speed Automatic (4T65-E HD)
FluidDexron III/VI
Drain & fill7 qt
Full capacity12 qt
Power Steering
TypeHydraulic
FluidGM Power Steering Fluid
Fuel
Tank17.1 gal
TypePremium 91
Service Intervals
Oil change5,000 mi
Trans service50,000 mi
Coolant flush150,000 mi
Spark plugs100,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt80,000 mi
1997–2004 Buick Regal
3.8L V6 (L36 3800 Series II) · FWD
200 hp / 225 lb-ft
Transmission
Type4-Speed Automatic (4T65-E)
FluidDexron III/VI
Drain & fill7 qt
Full capacity12 qt
Power Steering
TypeHydraulic
FluidGM Power Steering Fluid
Fuel
Tank17.1 gal
TypeRegular 87
Service Intervals
Oil change5,000 mi
Trans service50,000 mi
Coolant flush150,000 mi
Spark plugs100,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt100,000 mi
2011–2017 Buick Regal
2.0L Turbo I4 (LHU/LTG) · FWD
259 hp / 295 lb-ft
Transmission
Type6-Speed Automatic (6T45)
FluidDexron VI
Drain & fill4.5 qt
Full capacity7.4 qt
Power Steering
TypeElectric
FluidGM Power Steering Fluid
Fuel
Tank18 gal
TypePremium 91
Service Intervals
Oil change7,500 mi
Trans service45,000 mi
Coolant flush150,000 mi
Spark plugs60,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt100,000 mi
2011–2017 Buick Regal
2.0L Turbo I4 (LHU/LTG) · AWD
259 hp / 295 lb-ft
Transmission
Type6-Speed Automatic (6T50)
FluidDexron VI
Drain & fill5 qt
Full capacity8 qt
Power Steering
TypeElectric
FluidGM Power Steering Fluid
Differentials
Rear fluid75W-90 Synthetic GL-5
Fuel
Tank18 gal
TypePremium 91
Service Intervals
Oil change7,500 mi
Trans service45,000 mi
Coolant flush150,000 mi
Spark plugs60,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt100,000 mi
2011–2013 Buick Regal
2.4L I4 (LEA (eAssist)) · FWD
182 hp / 172 lb-ft
Transmission
Type6-Speed Automatic (6T45)
FluidDexron VI
Drain & fill4.5 qt
Full capacity7.4 qt
Power Steering
TypeElectric
FluidGM Power Steering Fluid
Fuel
Tank18 gal
TypeRegular 87
Service Intervals
Oil change7,500 mi
Trans service45,000 mi
Coolant flush150,000 mi
Spark plugs100,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt100,000 mi
2018–2020 Buick Regal
2.0L Turbo I4 (LSY) · FWD
250 hp / 260 lb-ft
Transmission
Type9-Speed Automatic (9T50)
FluidDexron HP
Drain & fill5.6 qt
Full capacity9 qt
Power Steering
TypeElectric
FluidGM Power Steering Fluid
Fuel
Tank16 gal
TypeRegular 87
Service Intervals
Oil change7,500 mi
Trans service45,000 mi
Coolant flush150,000 mi
Spark plugs60,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt100,000 mi
2018–2020 Buick Regal
2.0L Turbo I4 (LSY) · AWD
250 hp / 260 lb-ft
Transmission
Type9-Speed Automatic (9T50)
FluidDexron HP
Drain & fill5.6 qt
Full capacity9 qt
Power Steering
TypeElectric
FluidGM Power Steering Fluid
Differentials
Rear fluid75W-90 Synthetic GL-5
Fuel
Tank16 gal
TypeRegular 87
Service Intervals
Oil change7,500 mi
Trans service45,000 mi
Coolant flush150,000 mi
Spark plugs60,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt100,000 mi
2018–2020 Buick Regal
3.6L V6 (LGX) · AWD
310 hp / 282 lb-ft
Transmission
Type9-Speed Automatic (9T65)
FluidDexron HP
Drain & fill6 qt
Full capacity11.2 qt
Power Steering
TypeElectric
FluidGM Power Steering Fluid
Differentials
Rear fluid75W-90 Synthetic GL-5
Fuel
Tank16 gal
TypeRegular 87
Service Intervals
Oil change7,500 mi
Trans service45,000 mi
Coolant flush150,000 mi
Spark plugs100,000 mi
Timingchain (no scheduled replacement)
Air filter45,000 mi
Cabin filter22,500 mi
Drive belt100,000 mi