Fluid and Lubricant Recommendations

Usage	Fluid/Lubricant
Engine Oil	The engine requires engine oil approved to the dexos™ specification. Oils meeting this specification can be identified with the dexos™ certification mark. Look for and use only an engine oil that displays the dexos™ certification mark of the proper viscosity grade. Mobile 1 SAE 5W-30 GM P/N 12345885 (Canadian P/N 10953468) is the best viscosity grade for the vehicle. Do not use other viscosity oils.
Engine Coolant	50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant GM P/N 12346290 (Canadian P/N 10953464).
ZR1 Only - Intercooler System	50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant GM P/N 12346290 (Canadian P/N 10953464).
Hydraulic Brake System	DOT 3 Hydraulic Brake Fluid GM P/N 88862806 (Canadian P/N 88863462)
Windshield Washer	Optikleen® Washer Solvent
Hydraulic Clutch System	Use Only DOT 4 Hydraulic Brake Fluid GM P/N 88958860 (Canadian P/N 88901244)
Power Steering System	GM Power Steering Fluid GM P/N 89021184 (Canadian P/N 89021186)
Chassis Lubrication - Rear Toe-Link Outer Ends with ZO6, ZR1, or Z51 Option	Chassis Lubricant GM P/N 12377985 (Canadian P/N 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB
Manual Transmission	Manual Transmission Fluid GM P/N 88861800 (Canadian P/N 88861801)
Key Lock Cylinders	Multi-Purpose Lubricant, Superlube GM P/N 12346241 (Canadian P/N 10953474)
Rear Axle - Limited-Slip Differential	DEXRON® LS Gear Oil
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl	Lubriplate Lubricant Aerosol GM P/N 89021668 (Canadian P/N 89021674) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB
Hood and Door Hinges	Multi-Purpose Lubricant, Superlube GM P/N 12346241 (Canadian P/N 10953474)
Weatherstrip Conditioning	Weatherstrip Lubricant GM P/N 3634770 (Canadian P/N 10953518) or Dielectric Silicone Grease GM P/N 12345579 (Canadian P/N 10953481)