You take off the bottom cover and the filter is staring right at you. All a G35 is, Super Mack-Daddy Maxima/Altima/350z car
I just posted a related link to a video on how to change the oil for the first generation G35 (coupe & sedan).
The 2003 Infiniti I35 requires approximately 5.1 quarts of oil when equipped with a filter change. It's always a good idea to check the owner's manual for the specific oil capacity and type recommended for your vehicle.
Have 8 quarts ready. It will take between 7 - 8 quarts of oil.
A 1995 Infiniti G20 requires 3.4 quarts of oil for an oil change.
5W30 mobil 1
A g35 coupe and sedan both hold 5 quarts of oil. I would recommend using Mobil 1 5w-30 extended performance. U can find this oil at most auto part stores.
200 dollars
Every 3000 miles for regular oil.
Takes 5 quarts.
My recommendation is every 5,000 miles change the oil & filter.
4.5 quarts with oil/filter change.
Best to contact the OEM. Some cars require special oil.