Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSINFINITI2003I35 V6-3.5L (VQ35DE)REPAIR AND DIAGNOSISSPECIFICATIONSFLUID TYPE SPECIFICATIONSENGINE OIL
2003 Infiniti I35 V6-3.5L (VQ35DE)
Engine Oil
2003 Infiniti I35 V6-3.5L (VQ35DE)SECTION Engine Oil
Oil Grade
API Certification.
API grade SG/SH, Energy Conserving I & II or API grade SJ or SL, Energy Conserving.
ILSAC grade GF-I, GF-II & GF-III.
SAE Viscosity Number
GASOLINE ENGINE OIL
SAE 5W-30 viscosity oil is preferred for all temperatures.
SAE 10W-30 and 10W-40 viscosity oil may be used if the ambient temperature is above -18°C (0°F).
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.