Jeep メンテナンススケジュール：モデル別完全ガイド

It depends on the engine. Wrangler TJ (4.0L inline-six): every 3,000–5,000 miles with conventional, or 5,000 miles with full synthetic. Wrangler JK with the 3.8L V6: every 3,000–5,000 miles — the 3.8L is known for oil consumption and benefits from tighter intervals. JK with the 3.6L Pentastar: every 5,000–6,000 miles with 0W-20 full synthetic. Wrangler JL (3.6L Pentastar): every 6,000 miles. JL with the 2.0T turbo: every 5,000 miles — do not extend this interval on the turbo engine.

Dana 30 front and Dana 35 rear axles (Sport/Sahara trims): every 30,000 miles with 75W-90 GL-5 gear oil. Dana 44 axles (Rubicon trims): every 30,000 miles with 75W-140 GL-5. After any water crossing that submerges the differential, inspect the fluid immediately — milky or grey fluid means water contamination and requires a drain-and-refill right away. Transfer case (NP231, NV241, or MP3023): every 30,000–48,000 miles depending on model year, using ATF+4 or the specified Mopar transfer case fluid.

Yes, in specific areas. A lift changes the operating angle of CV axle shafts, ball joints, and track bars beyond their designed range. On a JL Wrangler, inspect front CV axle boots and joints every 10,000 miles (versus the standard service interval). Ball joints should be inspected every 15,000 miles on lifted Wranglers — they can wear out in 40,000–60,000 miles instead of the 100,000+ miles seen on stock-height trucks. Alignment should be checked every 20,000 miles and after any significant trail event. Dana axle fluid intervals stay the same (30,000 miles) but inspect for water intrusion more frequently if you're crossing water regularly.