Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2020 Buick Regal TourX BaseFACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | 2.03 OZS. | 0.06 L | PAG 46 | S | |||
| Air Cond Refrigerant | 1.21 LBS. | 0.54 KG | R-1234yf | S | |||
| Automatic Transmission Fluid | 7.50 QTS. | 7.09 L | Automatic Transmission Fluid AW-1 | S | |||
| Brake Fluid | N/A | N/A | DOT 4 Hydraulic Brake Fluid | S | |||
| Differential Gear Oil | Differential Clutch Fluid | 0.37 QTS. | 0.35 L | Pentosin CHF | S | ||
| Differential Gear Oil | Rear Axle | 0.92 QTS. | 0.87 L | DEXRON LS | S | ||
| Engine Coolant | 5.30 QTS. | 5.01 L | 50/50 mixture of DEX-COOL and clean, drinkable water | S | |||
| Engine Oil | w/Filter | 6.00 QTS. | 5.67 L | API - SAE 5W-30 Full Synthetic Engine Oil | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. In an area of extreme cold, where the temperature falls below -29Deg.C (-20Deg.F), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. | S | |
| Fuel Tank | 16.00 GALS. | 60.56 L | S | ||||
| Transfer Case Fluid | 0.69 QTS. | 0.65 L | Power Transfer Unit (PTU) AAM | S | |||
| Windshield Washer Fluid | N/A | N/A | Windshield Washer Fluid | Follow the Manufacturer's Instructions for the mixture ratio. Automotive windshield washer fluid that meets regional freeze protection requirements. | S | ||
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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