The Infiniti EX35 uses synthetic motor oil, typically 5W-30, for its 3.5-liter VQ35 engine. Always verify the exact specification for your year and climate in the owner's manual or with a dealer.
The choice of oil influences engine protection, fuel efficiency, and long-term reliability. This article outlines the standard recommendation, practical tips, and common questions about oil type, viscosity, and service intervals for the EX35.
Recommended oil type and viscosity
Below is a concise guide to the oil specification most EX35 owners should follow. Note that exact requirements can vary by model year and climate, so consult your manual for your specific vehicle.
- Oil type: Full synthetic motor oil is recommended for the best protection and performance.
- Viscosity: 5W-30 is the standard recommendation for most climates; for extremely cold climates, some manuals may permit 0W-30—always check your year-specific guidance.
- Certifications: Oil should meet API SN (or newer) and ILSAC GF-5 (or newer) standards.
- Capacity indication: Expect about 5 quarts of oil plus a new filter, though actual capacity can vary by year and filter choice—verify by the dipstick and service manual.
Using the correct oil type and viscosity helps maintain proper lubrication, fuel economy, and engine longevity, especially in the VQ35-powered EX35.
Oil change intervals and maintenance tips
This section covers how often to change the oil and other practical maintenance considerations. Always follow the interval recommended in your specific owner's manual, which reflects your year, climate, and driving conditions.
- Oil change interval: With synthetic oil, a typical guideline is about every 5,000–7,500 miles under normal driving; severe conditions (extensive idling, towing, extreme temperatures) may require shorter intervals.
- Oil filter: Use an OEM filter or a high-quality aftermarket filter that meets or exceeds OEM specifications.
- Oil level checks: Check the oil when the engine is cold or after it has cooled, and avoid overfilling by using the dipstick as a guide.
Adhering to the recommended intervals and using the right filter helps ensure consistent lubrication, reduces wear, and preserves engine performance over time.
Choosing the right oil for different climates and model years
Climate, driving habits, and model year can influence the exact oil specification. When in doubt, consult the owner’s manual or contact a Infiniti service adviser to confirm the correct viscosity and certification for your EX35.
How to verify information for your specific vehicle
Always cross-check the exact oil specification for your EX35 by checking the maintenance section of your owner's manual, the under-hood information sticker, or the official Infiniti service portal. If you’re uncertain, a dealership or qualified mechanic can confirm the correct oil grade and change interval for your year and locale.
Summary
For the Infiniti EX35, use full synthetic oil, typically 5W-30, that meets API SN or newer and ILSAC GF-5 or newer standards. Follow the oil change interval recommended in your owner's manual (usually around 5,000–7,500 miles under normal conditions) and use a quality filter. Always verify climate- and year-specific specifications to ensure optimal engine performance and longevity.