Chevrolet 2013 Silverado Owner's Manual page 407

Chevrolet Silverado Owner Manual - 2013 - crc 1st edition - 4/5/12
out along the axle tubes and has
not drained back to the sump area.
Therefore, a reading taken
five minutes after the vehicle has
been driven will appear to have a
lower fluid level than a vehicle that
has been stationary for an hour or
two. Remember that the rear axle
assembly must be supported to get
a true reading.
How to Check Lubricant
2500HD with 6.0 L
All Other Series and Engines
To get an accurate reading, the
vehicle should be on a level
surface.
For all 4.3 L, 4.8 L and 5.3 L
1500 Series applications, the
proper level is 1.0 mm to
19.0 mm (0.04 in to 0.7 in)
below the bottom of the fill hole,
located on the rear axle. Add
only enough fluid to reach the
proper level.
For all 6.0 L and 6.2 L 1500
Series applications, the proper
level is from 15 mm to 40 mm
Black plate (31,1)
Vehicle Care
(0.6 in to 1.6 in) below the
bottom of the fill plug hole,
located on the rear axle. Add
only enough fluid to reach the
proper level.
For all 6.0 L 2500HD Series
applications, the proper level is
from 0 mm to 13 mm (0 to 0.5 in)
below the bottom of the fill plug
hole, located on the rear axle.
Add only enough fluid to reach
the proper level.
For all 6.6 L Duramax Diesel
2500HD Series applications and
all 3500 Series applications, the
proper level is from 17 mm to
21 mm (0.6 in to 0.8 in) below the
bottom of the fill plug hole,
located on the rear axle. Add
only enough fluid to reach the
proper level.
What to Use
Refer to Recommended Fluids and
Lubricants on page 11 12 to
determine what kind of lubricant
to use.
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