1991 Infiniti M30 2D ConvertibleFACTORY OEM SERVICE PROCEDURE

Service Intervals & Specifications: Notes

REPLACEMENT INTERVALS (1)

Component Interval (Miles)
Oil & Filter 7500
Air Filter 30,000
Coolant 30,000
Fuel Filter 30,000
Spark Plugs (2) 60,000
Cam Timing Belt (3) 60,000
(1) More often under severe operating conditions.
(2) Platinum tip.
(3) M30 only.
Chapter Navigation
Return to Chapter: Service Intervals & Specifications
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.