Automatic Transmission Fluid - Chevrolet C6H042 Owner's Manual

Automatic Transmission Fluid

When to Check
A good time to have it checked is when the engine oil
is checked. See your Allison Automatic Transmission
Operator's Manual to find out when to change your
transmission fluid and filters.
How to Check and What to Use
The Allison Automatic Transmission Operator's Manual
that came with the vehicle shows how to check the
automatic transmission fluid and what fluid to use.
Automatic Transmission External Filter
Your automatic transmission filter requires
periodic replacement.
Consult the Allison Automatic Transmission
Operator's Manual that came with the vehicle for
proper change intervals.
Automatic Transmission External Filter
With Service Trans Filter Indicator
Light (Option)
If your vehicle has this option, the filter location is
different with different transmissions. It could be
located in the engine compartment to the left of the
transmission, or mounted behind the radiator on the
passenger's side frame rail.
This filter requires replacement when the SERVICE
TRANS FILTER indicator light on the instrument
panel comes on, or every three years, whichever
occurs first.
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