Subject: | Information for Engine Oils Used in 2014 Model Year Vehicles | |
Models: | 2014 GM Passenger Cars and Trucks | |
Refer to the following General Motors website for dexos1™ and dexos2™ informationabout the different licensed brands that are currently available: http://www.gmdexos.com
dexos1™ Engine Oil Trademark and Registered Trademark Logos-
appficjved-
appfidved-
Only those oils displaying the dexos1™ trademark and a registered trademark logo onthe front label of the container meet the demanding performance requirements and stringentquality standards set forth in the dexos1™ specification.
Look on the front label for either of the registered trademark logos shown above andthe 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, theengine oil is not an authentic, licensed dexos® product and is not recommended foruse in GM vehicles.
dexos1™ Engine Oil SpecificationThe dexos1™ specification was uniquely designed to complement the exacting requirementsof GM's advanced engine technology. The specification has gone through an extensivedevelopmental and testing process. It requires a number of proprietary tests thatare not included in current industry standards and sets performance criteria at alevel that exceeds many current standards. The result is a high performance fluidproviding significantwear 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 engineemissions.To promote long engine life.To minimize the number of engine oil changes in order to help meet the goal of lesseningthe 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 economybenefits throughout the life of the oil.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 oilspecifications.Frequently Asked Questions About dexos1™ 0W20 Engine Oil-
Question: Why dexos1™ 0W20 engine oil-
Answer: The new 5.3L and 6.2L V8 EcoTec3 engines available in the completely redesigned 2014Silverado 1500 and Sierra 1500 pickup trucks are the most fuel efficient and technologicallyadvanced engines in the market.
These engines utilize an advanced combustion system that maximizes the potential ofthe direct injection (DI) fuel system, active fuel management (AFM), variable valvetiming (VVT), two stage oil pumps and other technologies. The dexos1™ 0W20 oil supportsthese technologies and is an enabler for the improved fuel economy performance thatis exhibited in these products.
-
Question: Are other automobile manufacturers recommending 0W20 engine oil for their products-
Answer: Some other manufacturers are already recommending 0W20 engine oil for their products.General Motors expects this to become an industry trend and more automobile manufacturerswill be recommending the use of 0W20 engine oil in the future.
-
Question: What do the numbers 0W20 represent-
Answer: 0W20 represents the standard SAE measurement of oil viscosity. Viscosity is a measurementof the oil’s resistance to flow. The more resistant the oil is to flow, the higherits viscosity.
-
Question: If dexos1™ 0W20 oil is recommended for my vehicle’s engine, do I have to use it-
Answer: Yes. As an example, the 5.3L and 6.2L V8 EcoTec3 engines available in the 2014 Silverado1500 and Sierra 1500 pickup trucks, were designed, engineered, validated and EPA certifiedusing dexos1™ 0W20 oil. This is the ONLY oil approved for these engines.
-
Question: What if the engine Is low on oil and dexos1™ 0W20 oil is not available to top offthe oil level-
Answer: There are many different retailers nationwide that sell GM licensed oil productsthat meet the dexos1™ specification. Refer to the first section in this Bulletin:dexos 1™ and dexos 2™ Information Website
If you are unable to locate a retailer, then a GF5 Synthetic grade 0W20 oil that meetsthe dexos1™ specification, such as Mobil 1™ 0W-20 Advanced Fuel Economy syntheticoil can be used. It meets or exceeds International Lubricant Standardization andApproval Committee (ILSAC) GF-5 requirements.
-
Question: Can another oil such as 5W30 that is cheaper and more widely available be used inplace of dexos1™ 0W20 oil-
Answer: No. The 5.3L and 6.2L V8 EcoTec3 engines available in the 2014 Silverado 1500 andSierra 1500 pickup trucks were designed, engineered and validated to run using dexos1™0W20 oil. This is the ONLY oil approved for these engines.
-
Question: What if a different viscosity oil is added to the engine other than dexos1™ 0W20oil-
Answer: If a different viscosity oil is added to the engine other than dexos1™ 0W20 oil,GM recommends that an oil change be performed as soon as practical, but no longerthan the next scheduled oil change. in order to return the engine to the originaldexos1™ 0W20 oil factory requirements.
-
Question: Will using a different viscosity oil other than what is recommended damage the engine-
Answer: It is not possible to comment on every type and viscosity of oil that is available.Some higher viscosity oils may impact engine and fuel economy performance. Likewisefor example, using a lower viscosity oil in an engine that requires 5W30 oil may notprovide appropriate lubrication and may impact engine and fuel economy performance.
Always follow GM recommendations and only use the oil specified in the GM ServiceManual and/or the GM Owner Manual for the appropriate Model Year/Vehicle/Engine.
-
Question: When will dexos1™ 0W20 oil be available to Service Agents (Dealers)-
Answers: In the United States, dexos1™ 0W20 oil is currently available at retailers nationwidein 1-qt and 5-qt containers.
In the United States, Mobil 1™ 0W20 oil is currently available in quart/drum/bulkthrough the GM Oil Program.
In the United States, Customer Care and Aftersales (CCA) will release pricing andavailability for ACDelco dexos1™ 0W20 oil as soon as it becomes available.
In Canada, Mobil 1™ 0W20 oil is currently available in 1-L and 4.4-L sizes throughthe GM Oil Program.
In Canada, Customer Care and Aftersales (CCA) will release pricing and availabilityfor ACDelco dexos1™ 0W20 oil as soon as it becomes available. Refer to GM of CanadaBulletin GMP2013-149.
-
Question: Can Service Agents stop using/selling other oil weights in lieu of dexos1™ 0W20 oil-
Answer: That’s an individual decision that GM Service Agents will need to make based on thevehicles they are servicing. GM Powertrain has approved the use of 0W20 oil for applicationsspecifying 5W20 oil.
-
Question: What is the oil with filter capacity for the new 5.3L and 6.2L V8 EcoTec3 enginesused in the 2014 Silverado 1500 and Sierra 1500 5.3L and 6.2L V8 EcoTec3 engines-
Answer: The oil with filter capacity has increased to 8.5qt (8.0L) in order to supportthe advanced technology used in the engines, ensure proper engine oil cooling, aerationcontrol and vehicle performance.
-
Question: Can dexos2™ 5W30 be used in a Duramax® diesel engine-
Answer: No. The Duramax® diesel engine requires using the API CJ-4 specification, 15W40and in cold weather 5W40 oil. This specification oil MUST be used. Refer to the section in this Bulletin titled: Duramax® Diesel Engine Oil
GM Oil Life System in Conjunction With dexos1™ Supports Extended Oil Change IntervalsTo help conserve oil while maintaining engine protection, many GM vehicles are equippedwith the GM Oil Life System. This system can provide oil change intervals that exceedthe traditional 3,000-mile (5,000-km) recommendation.
The dexos1™ specification, with its requirements for improved oil robustness, complimentsthe GM Oil Life System by supporting extended oil change intervals over the lifetimeof a vehicle.
If all GM customers with GM Oil Life System equipped vehicles would use the systemas intended, GM estimates that more than 100 million gallons of oil could be savedannually.
dexos2™ Engine Oil Trademark and Trademark Logos-
dexc-
dexns-
Only those oils displaying the dexos2™ trademark and a trademark logo on the frontlabel of the container meet the demanding performance requirements and stringent qualitystandards set forth in the dexos2™specification.
Look on the front label for either of the trademark logos shown above and the 11 digitalphanumeric dexos® license number on the back label to identify an authorized, licenseddexos2™ engine oil. Unless an oil package displays these two markings, the engineoil is not an authentic, licensed dexos® product and is not recommended for use inGM vehicles.
dexos2™ Engine Oil SpecificationThe dexos2™ specification was uniquely designed to complement the exacting requirementsof GM's advanced engine technology. The specification has gone through an extensivedevelopmental and testing process. It requires a number of proprietary tests thatare not included in current industry standards and sets performance criteria at alevel that exceeds many current standards. The result is a high performance fluidproviding significantwear protection, improved piston cleanliness, a reduction in volatility and oil consumption,enhanced aeration control for improved fuel efficiency, and better oxidation properties.
-
dexos2™ is approved and recommended by GM for use in the 2014 Chevrolet Cruze CleanTurbo Diesel engine.dexos2™ is approved and recommended by GM for use in Europe starting in model year2010 vehicles, regardless of where the vehicle was manufactured.dexos2™ is the recommended service fill oil for European gasoline engines.dexos2™ is the recommended service fill oil for European light-duty diesel enginesand replaces GM-LL-B-025 and GM-LL-A-025.dexos2™ protects diesel engines from harmful soot deposits and is designed with limitson certain chemical components to prolong catalyst life and protect expensive emissionreduction systems. It is a robust oil, resisting degradation between oil changes andmaintaining optimum performance longer.Duramax® Diesel Engine Oil — Requires Lubricants Meeting Specification API CJ-4The Duramax® diesel engine is a heavy duty application. Due to the loads and temperaturesthat this engine operates in, the Duramax® diesel engine requires using 15W40, or 5W40 oil in cold weather, meeting the specification API CJ-4. DO NOT use dexos2™ engine oil in a Duramax® diesel engine. There is NO substitution for this application.
-
Duramax® is a registered trademark of General Motors LLC
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
dexos2™ logos and emblems are trademarks of General Motors LLC
Mobil 1™ is a trademark of Exxon Mobil Corporation
GM bulletins are intended for use by professional technicians,NOT a "do-it-yourselfer". They are written to inform thesetechnicians of conditions that may occur on some vehicles, or toprovide information that could assist in the proper service of avehicle. Properly trained technicians have the equipment,tools, safety instructions, and know-how to do a job properly andsafely. If a condition is described, DO NOT assume that thebulletin applies to your vehicle, or that your vehicle will havethat condition. See your GM dealer for information on whetheryour vehicle may benefit from the information. | WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION |
Rear Window Wiper Arm Replacement (Terrain) Wipers Wiper Arm
Rear Window Wiper Arm ReplacementCalloutComponent Name1Rear Window Wiper Arm Nut CoverTip:Lift the wiper arm nut cover in order to access the wiper arm nut.2Rear Window Wiper Arm NutCaution:Refer toFastener Caution.Tighten8-Y (71-lb-in)3Rear Window Wiper ArmProcedureRemove the rear window wiper arm. ...