INFINITI Maintenance Schedule — Service Intervals by Model and Mileage

Following INFINITI's recommended maintenance schedule with genuine OEM parts is the most effective investment you can make in your vehicle's long-term reliability and performance. INFINITI maintenance intervals are engineered around the specific materials, tolerances, and calibrations of OEM components — using the correct parts at the right intervals keeps your INFINITI performing as designed, maintains your warranty coverage, and prevents the costly repairs that result from deferred maintenance. INFINITI of Akron stocks every maintenance part for all INFINITI models at dealer-direct pricing with free standard shipping on orders over $150 to all 50 states.

Universal INFINITI Maintenance Intervals

These service intervals apply to most INFINITI models under normal driving conditions. Severe duty driving — defined as frequent short trips under 5 miles, sustained towing, dusty or off-road conditions, or extended idle time — requires more frequent service intervals. Consult your owner's manual for your specific vehicle's requirements and severe duty schedule.

Every 5,000 Miles

• Engine oil and filter change — Most current INFINITI models specify 0W-20 full synthetic engine oil. The oil filter is model-specific — OEM filters use the correct bypass valve pressure and filtration media for each engine family.
• Tire rotation — Extends tire life and maintains even wear patterns across all four corners.
• Fluid level inspection — Brake fluid, engine coolant, power steering fluid, windshield washer fluid.

Every 15,000 Miles

• Cabin air filter inspection and replacement — OEM cabin air filters are sized to your HVAC system's exact airflow specifications and use multi-layer filtration media calibrated for your specific system. Replacement is more frequent in dusty or high-pollen environments.
• Brake system inspection — Pad thickness measurement, rotor condition, caliper function, and brake fluid condition check.

Every 30,000 Miles

• Engine air filter replacement — Standard replacement interval under normal driving conditions. More frequent in dusty environments. OEM air filters maintain the mass air flow sensor's calibrated airflow resistance across the filter's service life.
• Brake fluid replacement — Brake fluid is hygroscopic — it absorbs moisture from the atmosphere over time, lowering its boiling point and increasing corrosion inside the brake system. OEM-specification brake fluid maintains the correct DOT rating and inhibitor package for INFINITI brake systems.
• Fuel filter inspection — Most INFINITI models use in-tank fuel filters with longer service intervals, but inspection at this mileage is appropriate.

Every 60,000 Miles

• Spark plug replacement — All INFINITI models use iridium spark plugs with specific heat range and gap requirements. OEM iridium plugs are critical — aftermarket plugs with incorrect heat range affect combustion efficiency, the VVEL variable valve system on applicable models, and fuel trim calibration. This is one of the highest-value maintenance items for performance preservation.
• CVT fluid replacement (first-gen QX60 2013–2021) — Nissan CVT fluid NS-3 exclusively. No other fluid is acceptable. Aftermarket CVT fluids cause slip and premature CVT failure. The CVT is the most expensive component on the first-generation QX60.
• Engine coolant flush — OEM-specification coolant maintains the correct inhibitor package for INFINITI's aluminum engine components, preventing electrolytic corrosion of aluminum surfaces.
• Drive belt inspection — Serpentine and accessory drive belt condition, crack pattern, and tension inspection.

Every 90,000–105,000 Miles

• Second spark plug replacement — High-mileage iridium plugs maintain function but replacement at this interval optimizes combustion efficiency and prevents the gradual performance degradation of worn plugs.
• Suspension inspection — Control arm bushings, sway bar links, tie rod ends, and shock absorbers. The QX60 first generation is particularly prone to front lower control arm bushing wear in this mileage range — proactive inspection prevents the clunking and tire wear that accompanies worn bushings.
• Oxygen sensor inspection — Oxygen sensors degrade gradually over their service life. Proactive replacement before failure maintains fuel economy and optimal performance. Degraded sensors cause fuel trim drift that typically appears as marginal increases in fuel consumption before a code is triggered.
• Water pump inspection (high-mileage vehicles) — The VQ35DE and VQ37VHR use timing chains (not belts) but the water pump has a finite service life. Inspection and replacement as needed at high mileage prevents cooling system failure.

QX60-Specific Maintenance Notes

• CVT service interval: First-generation QX60 (2013–2021) CVT fluid should be replaced every 60,000 miles under normal conditions, more frequently under severe duty. Use Nissan NS-3 CVT fluid exclusively.
• Front lower control arm inspection: Begin inspection at 75,000 miles. Listen for clunking over bumps. Plan for replacement between 80,000 and 100,000 miles on first-generation models.
• Power back door: Inspect actuator and latch function periodically. Slow operation or intermittent failure indicates actuator motor wear.
• Second-generation (2022+) 9-speed automatic fluid: Different specification from first-gen CVT fluid. Do not mix. Confirm your generation before any transmission service.

Q50-Specific Maintenance Notes

• Engine-specific spark plugs: The 3.0T VR30DDTT twin-turbo uses different plug specifications from the 3.7L VQ37VHR. The 2.0T uses a different specification still. Always confirm your engine before ordering spark plugs.
• Turbocharger oil supply lines (3.0T): Inspect for seepage at high mileage. Oil starvation is the leading cause of turbocharger failure. OEM supply lines maintain proper turbine shaft lubrication flow rates.
• DAS system hydraulic fluid: The Direct Adaptive Steering system uses hydraulic fluid for the road wheel actuator. This should be inspected at high mileage service intervals.
• Intercooler inspection (3.0T): Inspect intercooler pipes and connections at high mileage for boost leaks that reduce turbocharger efficiency.

G37-Specific Maintenance Notes

• VQ37VHR spark plugs: The high-rev operating range puts greater thermal stress on plugs. Use OEM iridium plugs with the correct heat range. Non-OEM plugs may function at idle but cause misfires at high rpm that are difficult to diagnose.
• Four catalytic converters: Monitor for efficiency codes (P0420/P0430) at higher mileage. The VQ37VHR high-rev operation accelerates converter temperature cycling compared to lower-revving engines.
• Engine oil change frequency: Given the VQ37VHR's high-rpm capability, oil changes at 5,000-mile intervals with full synthetic 5W-30 are the appropriate maintenance for owners who regularly use the engine's performance range.

Shop OEM INFINITI Maintenance Parts

Order all OEM INFINITI maintenance parts with VIN-confirmed fitment: Browse the Complete OEM INFINITI Parts Catalog. Free standard shipping on orders over $150 to all 50 states.

Frequently Asked Questions