Free repair checklist
Change Your Canyon's Oil — Duramax Diesel and 2.5L Gas Both Covered
The 2018 GMC Canyon comes with two very different engines — the 2.8L Duramax diesel and the 2.5L gas — and they need completely different oil specs. Mix them up and you risk DPF damage on the diesel. This free guide covers both variants with the correct spec for each, so you get the right oil in the right Canyon.
This checklist is a practical starting point. The DIY Mechanic System gives you a clearer path to diagnose the problem, plan the job, and complete the repair.
What this checklist covers
- 2.8L Duramax diesel: 6 quarts of 0W-30 Dexos D — wrong oil type can clog the DPF; this guide flags what to avoid
- 2.5L gas engine: 5 quarts of 5W-30 Dexos 1 — straightforward top-side drain with cartridge filter access
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