General Motors (GM) Specifications

General Motors issue their own sets of requirements for service fill engine oils used in their vehicles. These specifications detail the viscosity grades and physical, chemical and engine testing that must be conducted in order to obtain an approval.

There are two separate specifications, dexos1™ for gasoline engines and dexos2™ for diesel engines. In Europe, dexos2™ is also used for service fill gasoline engines. All applications for approvals against GM’s dexos specifications are made through the Center for Quality Assurance (CQA), who administer the approval process on behalf of GM.

ACEA 2016 Compliance Deadline: December 1, 2018

ACEA 2016 Compliance Deadline: December 1, 2018

From December 1, 2018, all engine lubricant formulations making ACEA performance claims must comply with the latest ACEA 2016 European ... Read More
Proposed Changes to the ACEA Light-Duty Oil Sequences

Proposed Changes to the ACEA Light-Duty Oil Sequences

The Light-Duty Sequences consist of detailed sets of specifications for light-duty diesel and gasoline engines, with differentiations for those with ... Read More
How Specification Development Impacts Society

How Specification Development Impacts Society

The certification of lubricant performance has important ramifications—not just for product performance, but for society at large ... Read More
The Real Impact of Engine Oil Performance

The Real Impact of Engine Oil Performance

The current process for certifying engine oil performance has some major implications not just for engine performance, but for the ... Read More
ACEA 2016 Becomes Mandatory

ACEA 2016 Becomes Mandatory

ACEA 2016 became mandatory on December 1, 2017 for all new formulations making performance claims against an ACEA Oil Sequence ... Read More
ACEA Oil Sequences in China

ACEA Oil Sequences in China

Vehicles sold by European OEMs in China are designed to comply with European emissions ... Read More

One Step Closer to ILSAC GF-6 First License Date

An agreement in principle on the ILSAC GF-6A and GF-6B specifications has been set for a May 1, 2020 first ... Read More

Mobility is Changing. Is the Auto Industry up to the Challenge?

Subscription services. Ride and vehicle sharing. Automation. The way consumers get around is changing rapidly, and that kind of new ... Read More

Formulating Against the Spectrum of Diesel Deposits

In the drive for greater fuel efficiency and reduced emissions, fuel injectors have become susceptible to a wider spectrum of ... Read More

Getting Real with Emissions in China

For many years, emissions measurement and certification has been performed under laboratory conditions, however it's widely recognized this didn't produce ... Read More

Deposit Control Additives Play a Critical Role in Today’s Fuels

When developing multi-functional additives, the most important ingredient is the deposit control additive (DCA). Here we discuss its significance ... Read More

No Time to Spare – China 6 is Here, Now

Learn more about the timeline for China 6 legislation and tightening of limits, considering the implications for lubricant and fuel ... Read More

Multi-functional Fuel Additives: What They Are and Why They Matter

While it may be tempting for drivers to use the lowest priced fuel when filling up their vehicles, it is ... Read More

China’s Ever-Tightening Fuel Consumption Regulations

China 6 emissions, combined with equally tough fuel economy requirements, are leading to ever-tightening fuel consumption limits ... Read More
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