File in Section:

Service Bulletin

Bulletin No.:
Date:

00 - General Information
13-00-90-002
December, 2013

INFORMATION
Subject:

Information for Vehicles Factory Filled With dexos1™ 5W-20 Oil Are Approved to
Substitute dexos1™ 0W-20 Oil as Optional Top Off and Service Fill

Models:

2013-2014 Cadillac ATS
2013-2014 Chevrolet Malibu
2013-2014 Chevrolet Spark
2014 Chevrolet Impala
Vehicles Equipped With Engine RPO LCV, LKW or LLO

Vehicles Factory Filled With dexos1™
5W-20 Oil Are Approved to Substitute
dexos1™ 0W-20 Oil as Optional Top Off
and Service Fill
The above listed Model Year vehicles, equipped
with the specified engine RPO codes were factory
filled with dexos1™ 5W-20 oil and the engines were
fitted with engine oil fill caps that say: SAE 5W-20
dexos. GM Powertrain has tested, validated and
approved the use of 0W-20 dexos1™ as an
acceptable substitute and optional top off and
service fill for these vehicles.

dexos1™ Information Website
Refer to the following General Motors website for
dexos1™ information about the different licensed
brands that are currently available, Go to: http://
www.gmdexos.com

3511747

dexos1™ Engine Oil Trademark and
Registered Trademark Logos

3512027
Copyright 2013 General Motors LLC. All Rights Reserved.

Page 2

December, 2013

Only those oils displaying the dexos1™ trademark and
a registered trademark logo on the front label of the
container meet the demanding performance
requirements and stringent quality standards set forth
in the dexos1™ specification.
Look on the front label for either of the registered
trademark logos shown above and the 11 digit
alphanumeric dexos® license number on the back label
to identify an authorized, licensed dexos1™ engine oil.
Unless an oil package displays these two markings, the
engine oil is not an authentic, licensed dexos® product
and is not recommended for use in GM vehicles.

dexos1™ Engine Oil Specification
The dexos1™ specification was uniquely designed to
complement the exacting requirements of GM's
advanced engine technology. The specification has
gone through an extensive developmental and testing
process. It requires a number of proprietary tests that
are not included in current industry standards and sets
performance criteria at a level that exceeds many
current standards. The result is a high performance
fluid providing significant wear protection, improved
piston cleanliness, a reduction in volatility and oil
consumption, enhanced aeration control for improved
fuel efficiency, and better oxidation properties.
The reasons for the new dexos1™ engine oil
specification are as follows:
• To meet environmental goals such as increasing
fuel efficiency and reducing engine emissions.
• To promote long engine life.
• To minimize the number of engine oil changes in
order to help meet the goal of lessening the
industry's overall dependence on crude oil.
dexos1™ is a GM-developed engine oil specification
that has been designed to provide the following
benefits:
• Further improve fuel economy, to meet future
corporate average fuel economy (CAFE)
requirements and fuel economy retention by
allowing the oil to maintain its fuel economy
benefits throughout the life of the oil.

•
•
•

Bulletin No.: 13-00-90-002

More robust formulations for added engine
protection and aeration performance.
Support the GM Oil Life System, thereby
minimizing the replacement of engine oil, before
its life has been depleted.
Reduce the duplication of requirements for a large
number of internal GM engine oil specifications.

GM Oil Life System in Conjunction With
dexos1™ Supports Extended Oil
Change Intervals
To help conserve oil while maintaining engine
protection, many GM vehicles are equipped with the
GM Oil Life System. This system can provide oil
change intervals that exceed the traditional 3,000 mile
(5,000 km) recommendation.
The dexos1™ specification, with its requirements for
improved oil robustness, compliments the GM Oil Life
System by supporting extended oil change intervals
over the lifetime of a vehicle.
If all GM customers with GM Oil Life System equipped
vehicles would use the system as intended, GM
estimates that more than 100 million gallons of oil could
be saved annually.
dexos® is a registered trademark of General
Motors LLC
dexos1™ and dexos2™ are trademarks of General
Motors LLC
dexos1™ logos and emblems are registered
trademarks of General Motors, LLC

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
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 your GM dealer for information on whether your vehicle may benefit from the
information.

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