2018 Cadillac CTS Oil Capacity, Types, & Filters
Your ultimate DIY maintenance guide for the 2018 Cadillac CTS oil change is here! No more searching – find all the critical oil specs for your 2018 Cadillac CTS, including exact engine oil capacity, the manufacturer recommended oil viscosity and type, and the correct OEM and aftermarket oil filters.
We cover all available engine options categorized by their specific engine codes, ensuring you get pinpoint accuracy for your specific vehicle configuration. Keep reading to discover everything required for a successful 2018 Cadillac CTS oil change!
Scroll Table ➜
| Engine & Code | Oil Capacity | Oil Viscosity/Type | Oil Filter |
|---|---|---|---|
| 2.0L 4-cylinder [X] LTG X Turbo | 6 quarts (with filter) AWD 5 quarts (with filter) RWD | SAE 0W-30 (Below -29°C) SAE 5W-30 (All TEMPS) | N/A |
| 3.6L 6-cylinder [8] LF3 8 Turbo | 7 quarts (with filter) | SAE 0W-30 (Below -29°C) SAE 5W-30 (All TEMPS) | N/A |
| 3.6L 6-cylinder [S] LGX S | 6 quarts (with filter) RWD WOC. 5.5 quarts (with filter) RWD WOOC. 6.6 quarts (with filter) AWD | SAE 0W-30 (Below -29°C) SAE 5W-30 (All TEMPS) | N/A |
| 6.2L 8-cylinder [6] LT4 Z | 10 quarts (with filter) | SAE 0W-30 (Below -29°C) SAE 5W-30 (All TEMPS) | N/A |
Select Your 2018 Cadillac CTS Engine Option
2018 Cadillac CTS 2.0L 4-cylinder [X] LTG X Turbo oil change details
Oil Grade:
SEOC3
Oil Capacity:
6 quarts. (with filter). For All-Wheel Drive (AWD) models, this is the capacity with the filter. Always check the oil level after refilling.
5 quarts. (with filter). For Rear-Wheel Drive (RWD) models, this is the capacity with the filter. Always check the oil level after refilling.
Oil Drain Plug Torque:
18 ft/lbs (Oil Drain Plug)
Notes:
This specification has been updated from the Dexos 1 Gen 2 standard to the newer General Motors (GM) Dexos 1 Gen 3 standard.
2018 Cadillac CTS 3.6L 6-cylinder [8] LF3 8 Turbo oil change details
Oil Grade:
SEOC3
Oil Capacity:
7 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
Name of Oil Filter:
N/A
Wix Oil Filter:
Wix Air Filter:
N/A
Coolant Capacity:
13.7 quarts - This capacity is for the Engine.
1.7 quarts - This is the capacity for the Low Temperature Cooling Circuit (LTCC).
Oil Drain Plug Torque:
18 ft/lbs (Oil Drain Plug)
Notes:
This specification has been updated from the Dexos 1 Gen 2 standard to the newer General Motors (GM) Dexos 1 Gen 3 standard.
3.6L 6-cylinder Engine Code [S] LGX S
2018 Cadillac CTS 3.6L 6-cylinder [S] LGX S oil change details
Oil Grade:
SEOC3
Oil Capacity:
6 quarts. (with filter). For Rear-Wheel Drive (RWD) models With an Oil Cooler (WOC), this is the capacity with the filter. Always check the oil level after refilling.
5.5 quarts. (with filter). For Rear-Wheel Drive (RWD) models Without an Oil Cooler (WOOC), this is the capacity with the filter. Always check the oil level after refilling.
6.6 quarts. (with filter). For All-Wheel Drive (AWD) models, this is the capacity with the filter. Always check the oil level after refilling.
Name of Oil Filter:
N/A
Wix Oil Filter:
N/A
Wix Air Filter:
N/A
Coolant Capacity:
11.2 quarts - For models With an oil cooler (OCOOL).
10.6 quarts - For models WithOut an oil cooler (OCOOL).
Oil Drain Plug Torque:
18 ft/lbs (Oil Drain Plug)
Notes:
This specification has been updated from the Dexos 1 Gen 2 standard to the newer General Motors (GM) Dexos 1 Gen 3 standard.
2018 Cadillac CTS 6.2L 8-cylinder [6] LT4 Z oil change details
Oil Grade:
SEOC3
Oil Capacity:
10 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
Oil Viscosity/Type:
SAE 0W-30 (Below -29°C) - The viscosities listed are for regular street driving. For competition or track use, you should use Dexos2 SAE 0W-40 or SAE 5W-40 oil. Remember to change the oil back to Dexos1 SAE 5W-30 after the track event.
SAE 5W-30 (All TEMPS) - The viscosities listed are for regular street driving. For competition or track use, you should use Dexos2 SAE 0W-40 or SAE 5W-40 oil. Remember to change the oil back to Dexos1 SAE 5W-30 after the track event.
Name of Oil Filter:
N/A
Wix Oil Filter:
Wix Air Filter:
N/A
Coolant Capacity:
11 quarts - This capacity is for the Engine.
2.1 quarts - This is the capacity for the Low Temperature Cooling Circuit (LTCC).
Oil Drain Plug Torque:
18 ft/lbs (Oil Drain Plug)
Notes:
This specification has been updated from the Dexos 1 Gen 2 standard to the newer General Motors (GM) Dexos 1 Gen 3 standard.
People also ask – 2018 Cadillac CTS
What is the oil capacity of a 2018 Cadillac CTS?
Depending on the specific engine option, the 2018 Cadillac CTS oil capacity ranges from 7 to 65 quarts. Here is the exact oil capacity breakdown for each available engine configuration:
• 2.0L 4-cylinder ([X] LTG X Turbo): 6 quarts. (with filter). For All-Wheel Drive (AWD) models, this is the capacity with the filter. Always check the oil level after refilling.
5 quarts. (with filter). For Rear-Wheel Drive (RWD) models, this is the capacity with the filter. Always check the oil level after refilling.
• 3.6L 6-cylinder ([8] LF3 8 Turbo): 7 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
• 3.6L 6-cylinder ([S] LGX S): 6 quarts. (with filter). For Rear-Wheel Drive (RWD) models With an Oil Cooler (WOC), this is the capacity with the filter. Always check the oil level after refilling.
5.5 quarts. (with filter). For Rear-Wheel Drive (RWD) models Without an Oil Cooler (WOOC), this is the capacity with the filter. Always check the oil level after refilling.
6.6 quarts. (with filter). For All-Wheel Drive (AWD) models, this is the capacity with the filter. Always check the oil level after refilling.
• 6.2L 8-cylinder ([6] LT4 Z): 10 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
Always check your dipstick after refilling to ensure the proper level.
What type of oil does a 2018 Cadillac CTS use?
Across its 4 available engine configurations, the 2018 Cadillac CTS uses the following motor oil viscosities: SAE 0W-30 (Below -29°C)SAE 5W-30 (All TEMPS). Using the correct manufacturer-approved oil weight is crucial for engine health. Here are the specific oil type requirements by engine:
• 2.0L 4-cylinder ([X] LTG X Turbo):Grade: SEOC3
SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS)
• 3.6L 6-cylinder ([8] LF3 8 Turbo):
Grade: SEOC3
SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS)
• 3.6L 6-cylinder ([S] LGX S):
Grade: SEOC3
SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS)
• 6.2L 8-cylinder ([6] LT4 Z):
Grade: SEOC3
SAE 0W-30 (Below -29°C) - The viscosities listed are for regular street driving. For competition or track use, you should use Dexos2 SAE 0W-40 or SAE 5W-40 oil. Remember to change the oil back to Dexos1 SAE 5W-30 after the track event.
SAE 5W-30 (All TEMPS) - The viscosities listed are for regular street driving. For competition or track use, you should use Dexos2 SAE 0W-40 or SAE 5W-40 oil. Remember to change the oil back to Dexos1 SAE 5W-30 after the track event.
What is the best oil filter for the 2018 Cadillac CTS?
The proper oil filter depends on your exact engine code. The 2018 Cadillac CTS utilizes the following premium aftermarket Wix oil filters across its lineup: WL10290-EA and WL10255-EA. Here is the specific OEM and aftermarket filter data for each engine:
• 2.0L 4-cylinder ([X] LTG X Turbo):OEM Filter: Check Dealer Part or Owner's Manual
Wix Filter: WL10290-EA
• 3.6L 6-cylinder ([8] LF3 8 Turbo):
OEM Filter: Check Dealer Part or Owner's Manual
Wix Filter: WL10255-EA
• 3.6L 6-cylinder ([S] LGX S):
OEM Filter: Check Dealer Part or Owner's Manual
Wix Filter: Check Cross-reference Catalog
• 6.2L 8-cylinder ([6] LT4 Z):
OEM Filter: Check Dealer Part or Owner's Manual
Wix Filter: WL10290-EA
How often should I change the oil in my 2018 Cadillac CTS?
For modern models running full synthetic oil, oil change intervals are typically every 7,500 to 10,000 miles. However, for older Cadillac CTS generations (1985-2010) or those using conventional/synthetic-blend fluid, changing the oil and filter every 3,000 to 5,000 miles is highly recommended to prevent sludge buildup. Regardless of engine (2.0L 4-cylinder, 3.6L 6-cylinder and 6.2L 8-cylinder), you should change your oil at least once a year even if you don’t reach the mileage limit.