First-gen Database

First-gen Diamante Maintenance Parts/Fluids/etc.
North American / JDM 3.0 Liter Trims
Battery	Group Size 24 Minimum CCA: 490 Group Size 34 and 25 should also work in a pinch.
Oil	Ambient temps over 100° F: 10W-30 All Others: 5W-30 Appx. 4.5 quarts w/filter High quality oil only: Mobil 1 recommended. I better not see any Amazon Basics oil in your Diamantes!
Oil Drain Plug Torque	40 Nm (29 ft-lbs)
Oil Filter	Filter: WIX 51334XP or failing that Mitsubishi MD136790 or MZ690116 Screw on by hand, after the O-ring makes contact tighten it another 3/4 turns with a filter wrench. Torque: 14 Nm (11 ft-lbs)
Engine Air Filter	WIX 46057
Spark Plugs	NGK 6741 Laser Iridium or NGK 3764 Iridium IX or NGK 2743 PFR6J-11 (DOHC) NGK 3903 Iridium IX or NGK 7133 BPR6ES-11 (SOHC) Gap: 1.0-1.1 mm (.039-0.043 in) - Do not adjust gap on platinum plugs! Torque: 25 Nm (15 ft-lbs)
Spark Plug Wires	NGK 8101 RC-ME78 (DOHC) SOHC used 3 different kinds so you will have to do car-specific research. If you contact me with your VIN I should be able to tell you what you need.
Wheels & Tires	Tire size: 205/65R15 94V Tire pressure: 32 psi front, 26 psi rear. (Note: This is from the American service manual, JDMs with 4WD I'm not sure if it would be different. The 3000GT VR-4 says 32/29 so it may be good to run that, that is what I do.) Wheel size: 15x6JJ Wheel offset: 46 mm (1.8 in) Lugnut pattern: 5 point 114.3 mm (4.5 in)
Wheel Lug Nut Torque	65-80 ft-lbs
Power Steering Fluid	ATF DEXRON II
Brake Fluid	DOT4 or DOT3
Engine Coolant	Fluid: DIA-QUEEN LONG-LIFE COOLANT 0103044 or high quality ethylene-glycol Capacity: 8.5 quarts including heater and coolant reserve system

Note: These are Amazon affiliate links so if you use them I will make some pennies from the sale to help with hosting costs. However, these are the same products I would recommend in either case no matter where you buy them.