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2005 - 2006 Corvette: Service Bulletin: Release of DEXRON VI Automatic Transmission Fluid (ATF)

Service Bulletin #: 04-07-30-037A

Date: August 19, 2005

Subject:  Release of DEXRON VI Automatic Transmission Fluid (ATF)

Model(s): 2005-2006

This bulletin is being revised to announce the use of DEXRON®-VI with the start of the 2006 model year production.

DEXRON®-VI ATF
General Motors Powertrain has recently upgraded to DEXRON®-VI ATF with the start of 2006 vehicle production.

Only 2005 and prior models that currently use DEXRON®-III may use DEXRON®-VI as a replacement.

All 2006 and future models that use DEXRON®-VI are to be serviced with DEXRON®-VI fluid only.

DEXRON®-VI is an improvement over DEXRON®-III in the following area:

DEXRON®-VI

Extended Factory Fill For Life
160,000 km (100,000 mi) For Cars and Light Duty Trucks*

80,000 km (50,000 mi) (Severe Use) For Cars and Light Duty Trucks*

Clutch Friction Stability
Improved 100%

Clutch Durability Due To Fluid
Improved 120%

Oil Film Thickness

Increased 20%

Fluid Oxidation

mproved 100%

Foam / Aeration
Improved 150%

Shear Stability

Improved 200%

88861003 (US)
DEXRON®-VI Auto Trans Fluid (1 Quart Bottle)

88861045 (US)
DEXRON®-VI Auto Trans Fluid (1 Gallon Bottle)

88861004 (CANADA)
DEXRON®-VI Auto Trans Fluid (1 Liter Bottle)

88861043 (CANADA)
DEXRON®-VI Auto Trans Fluid (4 Liter Bottle)

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.

© Copyright General Motors Corporation. All Rights Reserved

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