419 . . .
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Section 4
â– RECOMMENDED FLUIDS AND LUBRICANTS
USAGE FLUID / LUBRICANT
Engine Oil To determine the needed oil quality and viscosity for your vehicle's engine, see
"Engine Oil" earlier in this section.
Engine Coolant
50/50 mixture of clean, drinkable water and use only DEX-COOL
®
coolant. See
"Engine Coolant" earlier in this section.
Intercooler System
(CTS-V Model Only)
50/50 mixture of clean, drinkable water and use only DEX-COOL
®
coolant.
Hydraulic Brake
System
Delco Supreme 11
®
brake fluid or equivalent DOT-3 brake fluid.
Windshield Washer
Solvent
GM Optikleen
®
washer solvent.
Hydraulic Clutch
System
Hydraulic clutch fluid (GM part no. 88958860, Super DOT-4 brake fluid).
Parking Brake Cable
Guides
Chassis lubricant meeting requirements of NLGI grade 2, category LB or GC-LB
(GM part no. 12377985 or equivalent).
Power Steering
System
GM power steering fluid (GM part no. 89021184).
Manual Transmission
(CTS Model Only)
SAE 75W-90-GL5 Gear Oil (GM part no. 88862475).
AKENG40_CTS Page 419 Wednesday, July 23, 2008 11:47 AM