The 2018 Chevy Trax should use Dexos1 Gen 2 engine oil, with 5W-30 being the typical viscosity. This specification is standard for GM turbo engines like the Trax and can be provided in synthetic or synthetic-blend formulas. Always verify the exact grade and certification in your owner’s manual or on the oil cap.
Core oil specifications for the 2018 Trax
Understanding the Dexos1 Gen 2 standard and the usual viscosity helps ensure proper lubrication and warranty compliance.
Dexos1 Gen 2 certification
Dexos1 Gen 2 is GM’s current engine-oil standard designed for modern engines, including turbocharged units. Oils labeled Dexos1 Gen 2 meet GM’s performance criteria for wear protection, sludge control, and emissions-system compatibility.
Recommended viscosity and climate considerations
For the Trax’s 1.4L turbo engine, 5W-30 Dexos1 Gen 2 is the standard choice in most climates. In extremely cold environments, some technicians may approve alternative viscosities if listed by GM, but the owner’s manual should confirm any approved alternatives. When in doubt, 5W-30 Dexos1 Gen 2 is the safe default.
The following points summarize the key requirements you should confirm when selecting oil.
- Use Dexos1 Gen 2 certified engine oil (synthetic or synthetic-blend).
- Choose a viscosity appropriate for your climate, with 5W-30 being the typical recommendation.
- Ensure the oil meets Dexos1 Gen 2 specifications and is approved by GM for the Trax.
- Follow GM’s oil-change intervals, generally 7,500–10,000 miles with Dexos1 Gen 2 synthetic oil; more frequent changes may be advised for conventional oil or severe driving conditions.
By sticking to these guidelines, you’ll maintain proper lubrication for the Trax’s engine and help protect the turbocharger and emissions systems. Always cross-check the exact grade and interval in your manual or with a GM dealership.
How to verify the exact oil specification for your Trax
Since GM can update recommendations, confirm the precise requirements using these sources.
- Your vehicle’s owner’s manual, under Maintenance or Engine Oil sections.
- The oil fill cap on the engine, which often lists the Dexos specification and viscosity.
- GM’s official owner portal or a dealership service advisor for VIN-specific guidance.
- Any service bulletin or documentation provided at purchase or during recalls that may affect oil specs.
If you remain unsure, contact a Chevrolet dealership or certified service center to confirm Dexos1 Gen 2 compatibility and the exact viscosity for your climate and mileage.
Maintenance tips and practical steps
Beyond selecting the right oil, maintaining proper oil level and routine changes is essential for long-term performance.
- Use only Dexos1 Gen 2 oils, and avoid non-Dexos-rated products.
- Prefer synthetic or synthetic-blend formulas for better protection and longer change intervals.
- Check the oil level regularly and top up if needed between changes, using the correct grade.
- Adhere to the recommended change interval, adjusting for severe driving conditions (e.g., frequent short trips, extremely hot or cold environments, heavy loads).
Following these practices helps ensure reliability and keeps the Trax running smoothly.
Summary
For a 2018 Chevy Trax, the recommended oil is Dexos1 Gen 2 with a typical viscosity of 5W-30, available in synthetic or synthetic-blend formulations. Always verify exact specifications in the owner’s manual or with a Chevrolet dealer, especially for climate-specific viscosity and VIN-specific guidance. Regular oil changes with the correct oil protect the engine and its turbocharged system.