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.
2018 Chevrolet Tahoe Fluid Capacities
OEM fluid capacity chart from the factory service manual for the 2018 (2018).
Quick Answer
Air Cond Compressor Oil
6.59 OZS. (0.19 L) — PAG 46
Automatic Transmission Fluid (Trans Mfr CD 6L80/MYC)
6.00 QTS. (5.67 L) — Automatic Transmission Fluid DEXRON VI Note: All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
Brake Fluid
— DOT 3 Hydraulic Brake Fluid
Differential Gear Oil
2.75 QTS. (2.6 L) — SAE 75W-85 Synthetic Gear Oil Note: All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
Engine Coolant
17.80 QTS. (16.84 L) — 50/50 mixture of DEX-COOL and clean, drinkable water Note: Add 2.1 qts. if equipped with rear heater. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
Engine Oil
7.50 QTS. (7.09 L) — API - SAE 0W-20 Note: Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.
Transfer Case Fluid
1.60 QTS. (1.51 L) — Automatic Transmission Fluid DEXRON VI Note: All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
Notes
- →All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
- →Add 2.1 qts. if equipped with rear heater. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
- →Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.
- →Follow the Manufacturer's Instructions for the mixture ratio. Automotive windshield washer fluid that meets regional freeze protection requirements.
This vehicle's factory manual
2018 Chevrolet Tahoe: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
Related for Your 2018 Chevrolet Tahoe
Frequently Asked Questions
- What are the fluid capacities for a 2018 Chevrolet Tahoe?
- The 2018 Chevrolet Tahoe fluid capacities are: Air Cond Compressor Oil: 6.59 OZS. (0.19 L) — PAG 46, Automatic Transmission Fluid (Trans Mfr CD 6L80/MYC): 6.00 QTS. (5.67 L) — Automatic Transmission Fluid DEXRON VI Note: All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling., Brake Fluid: — DOT 3 Hydraulic Brake Fluid, Differential Gear Oil: 2.75 QTS. (2.6 L) — SAE 75W-85 Synthetic Gear Oil Note: All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling., Engine Coolant: 17.80 QTS. (16.84 L) — 50/50 mixture of DEX-COOL and clean, drinkable water Note: Add 2.1 qts. if equipped with rear heater. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling., Engine Oil: 7.50 QTS. (7.09 L) — API - SAE 0W-20 Note: Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty., Transfer Case Fluid: 1.60 QTS. (1.51 L) — Automatic Transmission Fluid DEXRON VI Note: All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling..
- How much engine oil does a 2018 Chevrolet Tahoe take?
- The 2018 Chevrolet Tahoe takes 7.50 QTS. (7.09 L) — API - SAE 0W-20 Note: Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty..