GMC 2005 Sierra 1500 Pickup, Owner'S Manual, Page: 542 / 574

Recommended Fluids and
Lubricants
Fluids and lubricants identified below by name,
part number or specification may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine Oil
Engine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certified for Gasoline Engines
starburst symbol. GM
Goodwrench
®
oil meets all the
requirements for your vehicle. To
determine the proper viscosity for
your vehicle’s engine, see Engine
Oil (Gasoline Engine) on page 5-20.
Engine Coolant
50/50 mixture of clean, drinkable
water and use only
DEX-COOL
®
Coolant. See Engine
Coolant on page 5-35.
Hydraulic Brake
System
Delco Supreme 11 Brake Fluid or
equivalent DOT-3 brake fluid.
Usage Fluid/Lubricant
Windshield
Washer Solvent
GM Optikleen
®
Washer Solvent.
Hydraulic
Clutch System
(5–Speed
Trans.)
Hydraulic Clutch Fluid (GM Part No.
U.S. 12345347, in Canada
10953517) or equivalent DOT-3
brake fluid.
Hydraulic
Clutch System
(6–Speed
Trans.)
Hydraulic Clutch Fluid. Use only GM
Part No. U.S. 88958860, in Canada
88901244, Super DOT-4 brake fluid.
Power Steering
System
GM Power Steering Fluid (GM Part
No. U.S. 89021184, in Canada
89021186).
Manual
Transmission
(5–Speed with
Low Gear, RPO
MW3)
GM Goodwrench
®
Synthetic Manual
Transmission Fluid (GM Part No.
U.S. 12346190, in Canada
10953477) or equivalent SAE
75W-85 GL-4 gear oil.
Manual
Transmission
(5–Speed
without Low
Gear, RPO
MG5)
Synchromesh Transmission Fluid
(GM Part No. U.S. 12345349, in
Canada 10953465).
6-14