What oil does a 2018 Cruze diesel take?
The 2018 Chevrolet Cruze Diesel uses synthetic motor oil that meets Dexos2 specification, typically SAE 5W-40.
In detail, the 2.0L Duramax diesel engine in the Cruze requires oil that is Dexos2-certified. The standard viscosity for this engine is 5W-40, though GM manuals emphasize using Dexos2-rated synthetic oil. Always verify with your owner's manual or a GM dealership if you plan to deviate from OEM recommendations.
Oil specification and recommended viscosity
What to look for when selecting oil for your 2018 Cruze Diesel:
- Dexos2 certification: oil must carry the Dexos2 approval to meet GM requirements.
- Synthetic formulation: Dexos2 is intended for turbocharged diesel engines and provides superior protection.
- Viscosity: 5W-40 is the standard recommendation for most operating environments.
- Brand compatibility: choose reputable brands that explicitly state Dexos2 compliance.
Choosing a Dexos2 5W-40 synthetic oil from a reputable brand will help ensure proper lubrication, engine protection, and warranty compliance. Use the correct oil level and follow the service intervals in the owner's manual.
Practical tips and caveats
Keep in mind that in extreme climates you may want to consult the owner's manual for any climate-specific guidance. The Cruze Diesel's maintenance schedule and oil capacity will be specified in the manual, and a GM dealership can confirm Dexos2 requirements for your VIN.
Summary
For a 2018 Cruze Diesel, use Dexos2 synthetic motor oil with a typical viscosity of 5W-40. Always check the owner's manual or with a GM dealer to confirm the exact specification for your vehicle. Following the OEM specification helps ensure optimal engine protection and warranty compliance.
