Bulletin Number: ITB01029B
Bulletin Date: 10-05-2001
Component: 061100 engine and engine cooling:engine:gasoline
Summary:
Some vehicles may exhibit engine rough running, engine surging, low engine power, malfunction indicator lamp on with diagnostic trouble code p0100 (mass airflow sensor) stored. *tt

10″ extension and 5/8″ spark plug socket
NGK Iridium IX plugs (used here)
Notes: Gap 0.044"
https://amzn.to/2WXv9dL
Spark plug grease for boot (where spark plug end attached to the coil.)
Extendable, flex magnet

Free video to see how to change the cabin air filter on your 2001 Infiniti I30 T 3.0L V6. Follow these steps to change the pollen filter or cabin air filter on your 2001 Infiniti I30 T 3.0L V6

Yes, you may use non-premium gasoline (87 octane) in the Infiniti I30 from 1999 or earlier for sure. For the 2000 model year and onward, the compression ratio in the engine was increased and the manufacturer recommends higher octane gasoline (92+) for maximum performance and engine life. This will also prevent a "check engine" light and the engine from knocking under higher load.

Probably also applies to Infiniti i30