2005 GMC Savana Owners Manual PDF | Page 283

If the level is below the
bottom of the ?ller plug
hole, you may need to add
some lubricant.
When the differential is cold, add enough lubricant to
raise the level to 3/8 inch (10 mm) below the ?ller
plug hole.
When the differential is at operating temperature
(warm), add enough lubricant to raise the level to the
bottom of the ?ller plug hole.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See Recommended Fluids
and Lubricants on page 6-13.
Noise Control System
Tampering with Noise Control
System Prohibited
The following information relates to compliance with
federal noise emission standards for vehicles with
a Gross Vehicle Weight Rating (GVWR) of more than
10,000 lbs (4 536 kg). The Maintenance Schedule
provides information on maintaining the noise control
system to minimize degradation of the noise emission
control system during the life of your vehicle. The noise
control system warranty is given in your warranty
booklet.
These standards apply only to vehicles sold in the
United States.
5-45

2005 GMC Savana Owners Manual Summary of Content

If the level is below thebottom of the ller plughole, you may need to addsome lubricant.When the differential is cold, add enough lubricant toraise the level to 3/8 inch (10 mm) below the llerplug hole.When the differential is at operating temperature(warm), add enough lubricant to raise the level to thebottom of the ller plug hole.What to UseRefer to the Maintenance Schedule to determine whatkind of lubricant to use. See Recommended Fluidsand Lubricants on page 6-13.Noise Control SystemTampering with Noise ControlSystem ProhibitedThe following information relates to compliance withfederal noise emission standards for vehicles witha Gross Vehicle Weight Rating (GVWR) of more than10,000 lbs (4 536 kg). The Maintenance Scheduleprovides information on maintaining the noise controlsystem to minimize degradation of the noise emissioncontrol system during the life of your vehicle. The noisecontrol system warranty is given in your warrantybooklet.These standards apply only to vehicles sold in theUnited States.5-45