2018 Cadillac ATS Oil Type & Capacity
The 2018 Cadillac ATS oil type depends on the engine: the Base, 2D Coupe, AWD takes 5W-30 (6.0 quarts with filter); the Base, 2D Coupe, RWD, Automatic Trans takes 5W-30 (5.0 quarts with filter); the Base, 2D Coupe, RWD, Standard Trans takes 5W-30 (5.0 quarts with filter); the Base, 4D Sedan, AWD takes 5W-30 (6.0 quarts with filter); the Base, 4D Sedan, RWD, Automatic Trans takes 5W-30 (5.0 quarts with filter); the Base, 4D Sedan, RWD, Standard Trans takes 5W-30 (5.0 quarts with filter); the Luxury, 2D Coupe, AWD takes 5W-30 (6.0 quarts with filter); the Luxury, 2D Coupe, RWD, Automatic Trans takes 5W-30 (5.0 quarts with filter); the Luxury, 2D Coupe, RWD, Standard Trans takes 5W-30 (5.0 quarts with filter); the Luxury, 4D Sedan, AWD takes 5W-30 (6.0 quarts with filter); the Luxury, 4D Sedan, RWD, Automatic Trans takes 5W-30 (5.0 quarts with filter); the Luxury, 4D Sedan, RWD, Standard Trans takes 5W-30 (5.0 quarts with filter); the Premium Luxury, 2D Coupe, AWD takes 5W-30 (6.5 quarts with filter); the Premium Luxury, 2D Coupe, RWD takes 5W-30 (5.5 quarts with filter); the Premium Luxury, 4D Sedan, AWD takes 5W-30 (6.5 quarts with filter); the Premium Luxury, 4D Sedan, RWD takes 5W-30 (5.5 quarts with filter); the Premium Performance, 2D Coupe takes 5W-30 (5.5 quarts with filter); the Premium Performance, 4D Sedan takes 5W-30 (5.5 quarts with filter); the V, 2D Coupe, Automatic Trans takes 5W-30 (7.0 quarts with filter); the V, 2D Coupe, Standard Trans takes 5W-30 (7.0 quarts with filter); the V, 4D Sedan, Automatic Trans takes 5W-30 (7.0 quarts with filter); the V, 4D Sedan, Standard Trans takes 5W-30 (7.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- Base, 2D Coupe, AWD: 5W-30, 6.0 quarts with filter
- Base, 2D Coupe, RWD, Automatic Trans: 5W-30, 5.0 quarts with filter
- Base, 2D Coupe, RWD, Standard Trans: 5W-30, 5.0 quarts with filter
- Base, 4D Sedan, AWD: 5W-30, 6.0 quarts with filter
- Base, 4D Sedan, RWD, Automatic Trans: 5W-30, 5.0 quarts with filter
- Base, 4D Sedan, RWD, Standard Trans: 5W-30, 5.0 quarts with filter
- Luxury, 2D Coupe, AWD: 5W-30, 6.0 quarts with filter
- Luxury, 2D Coupe, RWD, Automatic Trans: 5W-30, 5.0 quarts with filter
- Luxury, 2D Coupe, RWD, Standard Trans: 5W-30, 5.0 quarts with filter
- Luxury, 4D Sedan, AWD: 5W-30, 6.0 quarts with filter
- Luxury, 4D Sedan, RWD, Automatic Trans: 5W-30, 5.0 quarts with filter
- Luxury, 4D Sedan, RWD, Standard Trans: 5W-30, 5.0 quarts with filter
- Premium Luxury, 2D Coupe, AWD: 5W-30, 6.5 quarts with filter
- Premium Luxury, 2D Coupe, RWD: 5W-30, 5.5 quarts with filter
- Premium Luxury, 4D Sedan, AWD: 5W-30, 6.5 quarts with filter
- Premium Luxury, 4D Sedan, RWD: 5W-30, 5.5 quarts with filter
- Premium Performance, 2D Coupe: 5W-30, 5.5 quarts with filter
- Premium Performance, 4D Sedan: 5W-30, 5.5 quarts with filter
- V, 2D Coupe, Automatic Trans: 5W-30, 7.0 quarts with filter
- V, 2D Coupe, Standard Trans: 5W-30, 7.0 quarts with filter
- V, 4D Sedan, Automatic Trans: 5W-30, 7.0 quarts with filter
- V, 4D Sedan, Standard Trans: 5W-30, 7.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, 2D Coupe, AWD — 2.0L Eng,AWD | API - SAE 5W-30 | 6.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Base, 2D Coupe, RWD, Automatic Trans — 2.0L Eng,RWD | API - SAE 5W-30 | 5.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Base, 2D Coupe, RWD, Standard Trans — 2.0L Eng,RWD | API - SAE 5W-30 | 5.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Base, 4D Sedan, AWD — 2.0L Eng,AWD | API - SAE 5W-30 | 6.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Base, 4D Sedan, RWD, Automatic Trans — 2.0L Eng,RWD | API - SAE 5W-30 | 5.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Base, 4D Sedan, RWD, Standard Trans — 2.0L Eng,RWD | API - SAE 5W-30 | 5.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Luxury, 2D Coupe, AWD — 2.0L Eng,AWD | API - SAE 5W-30 | 6.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Luxury, 2D Coupe, RWD, Automatic Trans — 2.0L Eng,RWD | API - SAE 5W-30 | 5.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Luxury, 2D Coupe, RWD, Standard Trans — 2.0L Eng,RWD | API - SAE 5W-30 | 5.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Luxury, 4D Sedan, AWD — 2.0L Eng,AWD | API - SAE 5W-30 | 6.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Luxury, 4D Sedan, RWD, Automatic Trans — 2.0L Eng,RWD | API - SAE 5W-30 | 5.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Luxury, 4D Sedan, RWD, Standard Trans — 2.0L Eng,RWD | API - SAE 5W-30 | 5.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Premium Luxury, 2D Coupe, AWD — 3.6L Eng,Normally Aspirated,AWD | API - SAE 5W-30 | 6.50 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Premium Luxury, 2D Coupe, RWD — 3.6L Eng,Normally Aspirated,RWD,Eng CD LGX | API - SAE 5W-30 | 5.50 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Premium Luxury, 4D Sedan, AWD — 3.6L Eng,Normally Aspirated,AWD | API - SAE 5W-30 | 6.50 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Premium Luxury, 4D Sedan, RWD — 3.6L Eng,Normally Aspirated,RWD,Eng CD LGX | API - SAE 5W-30 | 5.50 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Premium Performance, 2D Coupe — 3.6L Eng,Normally Aspirated,RWD,Eng CD LGX | API - SAE 5W-30 | 5.50 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Premium Performance, 4D Sedan — 3.6L Eng,Normally Aspirated,RWD,Eng CD LGX | API - SAE 5W-30 | 5.50 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| V, 2D Coupe, Automatic Trans — 3.6L Eng,Turbocharger | API - SAE 5W-30 | 7.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| V, 2D Coupe, Standard Trans — 3.6L Eng,Turbocharger | API - SAE 5W-30 | 7.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| V, 4D Sedan, Automatic Trans — 3.6L Eng,Turbocharger | API - SAE 5W-30 | 7.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| V, 4D Sedan, Standard Trans — 3.6L Eng,Turbocharger | API - SAE 5W-30 | 7.00 QTS. | — | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
Buy the right oil
Buy 5W-30 motor oil on Amazon2018 Cadillac ATS oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your ATS
2018 Cadillac ATS factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
9.3 quarts (8.8 L) — 50/50 mixture of DEX-COOL and clean, drinkable water
Frequently asked questions
What type of oil does a 2018 Cadillac ATS take?
It depends on the engine: Base, 2D Coupe, AWD uses 5W-30; Base, 2D Coupe, RWD, Automatic Trans uses 5W-30; Base, 2D Coupe, RWD, Standard Trans uses 5W-30; Base, 4D Sedan, AWD uses 5W-30; Base, 4D Sedan, RWD, Automatic Trans uses 5W-30; Base, 4D Sedan, RWD, Standard Trans uses 5W-30; Luxury, 2D Coupe, AWD uses 5W-30; Luxury, 2D Coupe, RWD, Automatic Trans uses 5W-30; Luxury, 2D Coupe, RWD, Standard Trans uses 5W-30; Luxury, 4D Sedan, AWD uses 5W-30; Luxury, 4D Sedan, RWD, Automatic Trans uses 5W-30; Luxury, 4D Sedan, RWD, Standard Trans uses 5W-30; Premium Luxury, 2D Coupe, AWD uses 5W-30; Premium Luxury, 2D Coupe, RWD uses 5W-30; Premium Luxury, 4D Sedan, AWD uses 5W-30; Premium Luxury, 4D Sedan, RWD uses 5W-30; Premium Performance, 2D Coupe uses 5W-30; Premium Performance, 4D Sedan uses 5W-30; V, 2D Coupe, Automatic Trans uses 5W-30; V, 2D Coupe, Standard Trans uses 5W-30; V, 4D Sedan, Automatic Trans uses 5W-30; V, 4D Sedan, Standard Trans uses 5W-30.
How much oil does a 2018 Cadillac ATS take?
Capacity depends on the engine: Base, 2D Coupe, AWD holds 6.0 quarts with filter; Base, 2D Coupe, RWD, Automatic Trans holds 5.0 quarts with filter; Base, 2D Coupe, RWD, Standard Trans holds 5.0 quarts with filter; Base, 4D Sedan, AWD holds 6.0 quarts with filter; Base, 4D Sedan, RWD, Automatic Trans holds 5.0 quarts with filter; Base, 4D Sedan, RWD, Standard Trans holds 5.0 quarts with filter; Luxury, 2D Coupe, AWD holds 6.0 quarts with filter; Luxury, 2D Coupe, RWD, Automatic Trans holds 5.0 quarts with filter; Luxury, 2D Coupe, RWD, Standard Trans holds 5.0 quarts with filter; Luxury, 4D Sedan, AWD holds 6.0 quarts with filter; Luxury, 4D Sedan, RWD, Automatic Trans holds 5.0 quarts with filter; Luxury, 4D Sedan, RWD, Standard Trans holds 5.0 quarts with filter; Premium Luxury, 2D Coupe, AWD holds 6.5 quarts with filter; Premium Luxury, 2D Coupe, RWD holds 5.5 quarts with filter; Premium Luxury, 4D Sedan, AWD holds 6.5 quarts with filter; Premium Luxury, 4D Sedan, RWD holds 5.5 quarts with filter; Premium Performance, 2D Coupe holds 5.5 quarts with filter; Premium Performance, 4D Sedan holds 5.5 quarts with filter; V, 2D Coupe, Automatic Trans holds 7.0 quarts with filter; V, 2D Coupe, Standard Trans holds 7.0 quarts with filter; V, 4D Sedan, Automatic Trans holds 7.0 quarts with filter; V, 4D Sedan, Standard Trans holds 7.0 quarts with filter.
Can I use synthetic oil in my 2018 Cadillac ATS?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2018 Cadillac ATS. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.