2021 Jeep Grand Cherokee
30,000 mile service checklist
Here's exactly what your factory maintenance schedule calls for at this mileage — and what each item typically costs.
30,000 mile service
- Engine oil and filter change — 0W-20 full synthetic
- Tire rotation
- Replace cabin air filter
- Replace engine air filter
- Inspect spark plugs — 3.6L Pentastar iridium (factory interval ~100k; inspect at 30k)
- Inspect spark plugs — 5.7L HEMI iridium (factory interval ~60k; inspect at 30k)
- Inspect front differential fluid (4x4 — Mopar 75W-140 synthetic gear oil)
- Inspect transfer case fluid — Quadra-Trac I/II/Quadra-Drive II (Mopar ATF+4)
- Inspect rear differential fluid — Mopar 75W-140 synthetic (limited-slip requires friction modifier)
- Inspect ZF 8-speed automatic transmission fluid