Hyundai Elantra MD/UD: 22,500 miles (36,000 km) or 18 months
❑ Rotate tire
❑ Inspect battery condition
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Replace engine oil and filter (22,500 miles (36,000 km) or 36 months)
❑ Add fuel additive *3 (22,500 miles (36,000 km) or 36 months)