New oil from GM ???
03-23-2011, 07:05 AM
#1
Pro
Thread Starter
New oil from GM ???
Just took my '05 to the local dealer for its spring visit. They have always used Castrol Edge in the past when I had it serviced. I noticed that this time they used Dextros oil. When I asked them about it they said that is the oil that GM says to use, and it is better than all the other syntheic oils. Anyone here every heard about this and is it truly better?
03-23-2011, 09:01 AM
#2
Team Owner
Dexos was released in October for 2011 vehicles. Think all of the trucks use it as standard fill. It won't be long before other oil companies will have oil that meets this new GM spec. Think the spec is called GF-5. From what I have read, both Pennzoil and Quaker State are GM-approved GF-5 dexos oils. There will be more to come; I would expect that Mobil-1 will have the new GF-5 rating if it doesn't have it now.
But for now, if a dealer gets a 2011 car or truck in for engine warranty work (engine failure) they will send the oil off for testing. If it's not the new dexos, they will most likely not perform the work under the GM warranty.
But for now, if a dealer gets a 2011 car or truck in for engine warranty work (engine failure) they will send the oil off for testing. If it's not the new dexos, they will most likely not perform the work under the GM warranty.
03-23-2011, 09:03 AM
#3
Team Owner
General Motor's engine oil logo, Dexos 1. GM
by: Rex Roy
See More Articles
from this Author
If you're thinking about buying a 2011 General Motors vehicle, you'll be getting more than just a new car, crossover, SUV or truck. The oil in your new vehicle's engine will be new as well, meeting a recently unveiled specification called "dexos 1."
Oils that meet the dexos 1 (yes, with a lowercase “d”) standard provide some real benefits. However, when it comes time for that first oil change, expect a 25-30 percent cost increase -- which could be about the same as choosing pure synthetic oil.
Further, GM says that if a customer has an engine failure that is traced to oil or lubrication issues, and if the customer does not use dexos 1 oil in their gasoline-powered GM vehicle, that act alone could void the warranty. The same goes for GM vehicles with diesel engines, which use a diesel-specific “dexos 2” oil blend.
Not Just GM
But let’s not be too quick to admonish GM for requiring this new oil or speculate that this is bound to drive away potential customers. The reality is that the cost for an oil change will be going up for everyone. That’s because we're in the launch period for a new-and-improved oil standard, which will eventually be commonplace across the industry.
Superseding the current standard, called “GF-4,” will be oils made to the new “GF-5” specification. These are beginning to show up in auto parts stores and oil change shops across the country this fall. Manufacturers other than GM are expected to begin factory-filling vehicles with GF-5 oils starting with 2012 models.
The new GF-5 performance specification was developed by the International Lubricants Standardization and Approval Committee (ILSAC) with input from automakers, oil refiners, and oil additive manufacturers. Like the GM-specific dexos 1 oil, GF-5 oils deliver better performance but cost more. Expect to pay about 15-20 percent over comparable GF-4 oils.
The new GF-5 and GM dexos oils are superior to most non-synthetic oils. The new formulations are also backwards compatible, meaning they will work in engines that have used older oil formulations.
How More Expensive Oils Can Save Money
Dexos and GF-5 oils are more expensive than prior oil formulations because these new oils deliver superior performance. Oil makers start with higher-quality base oil and then add more additives, which make them more expensive. Additives can make up as much as 30 percent of a typical quart of oil.
These high-performance oils can pay for themselves, but not how you might think. Many of these oils will advertise the benefit of "higher fuel economy." The claim isn't false because dexos and GF-5 oils do reduce internal engine friction that will improve fuel efficiency. Unfortunately the gains will be so small -- less than one percent -- that the average driver will never notice.
The real payback comes from extending the time and mileage between oil changes. Dexos and GF-5 oils allow drivers to drive more miles between oil changes without needing to worry about a loss of lubrication qualities, the buildup of sludge, or damage to sensitive emission control devices. Depending on driving habits, oil changes could extend beyond 10,000 miles.
What Should Your Repair Cost?
Click Here To Get Free Estimates On Common Auto Repairs
While that may be heresy compared to the 3,000-mile oil change interval your local shop recommends, it’s the new reality of oil change intervals. Thanks to the use of in-vehicle oil life monitoring and these new oil formulations, there’s no longer one specific mileage interval to adhere to. In other words, changing your oil every 3,000 miles will likely lead to wasting oil by replacing it before it is actually necessary.
Both dexos 1 and GF-5 oil specifications also offer more comprehensive protection for engines, including the latest generation of turbocharged engines and those that run on ethanol (E85). Turbochargers and E85 each demand specific characteristics from engine oils. Resistance to heat is especially important for turbo engines, while protection against rust is critical for vehicles running on E85. In other words, running the right oil might mean the difference between an engine that lasts hundreds of thousands of miles, and one that doesn't.
The dexos oil also has some unique properties that General Motors engineers required. One characteristic is better resistance to aeration (the whipping of air bubbles into the oil). Some GM engines with variable camshaft timing use engine oil as a hydraulic fluid to move components within the engine. If air bubbles are in the oil, components actuated by engine oil will not move as they were designed to, limiting engine performance and efficiency.
ILSAC vs. API vs. GM dexos Classifications
Golden Globes, Emmys, The People's Choice, The Academy Awards: Just like the multiple shows that bestow honors upon the entertainment industry, there are multiple organizations that promote oil standards.
This, of course, can completely confuse consumers. But here's some help: Many drivers are aware of the American Petroleum Institute's (API) grading of oils. Their trademarked "star burst" graphic is on most quarts of oil. The graphic advertises that the oil is licensed by the API and shows the grade of oil you're buying. The API is a consumer-directed organization.
The ILSAC, on the other hand, is a trade organization that works primarily with vehicle manufacturers and those who commercially produce engine oil. The API and ILSAC have worked cooperatively for years, and their ratings track on a parallel path.
The API "SM" certification has been the standard since 2005. "SM" is the equivalent of the ILSAC GF-4. To keep up with the new GF-5 specification, the API revised their certification with the new "SN" rating. So SN = GF-5. The official rollout for SN oils begins later this year.
Got that? Here’s the bottom line: use the oil recommended for your vehicle and you won’t have a problem.
by: Rex Roy
See More Articles
from this Author
If you're thinking about buying a 2011 General Motors vehicle, you'll be getting more than just a new car, crossover, SUV or truck. The oil in your new vehicle's engine will be new as well, meeting a recently unveiled specification called "dexos 1."
Oils that meet the dexos 1 (yes, with a lowercase “d”) standard provide some real benefits. However, when it comes time for that first oil change, expect a 25-30 percent cost increase -- which could be about the same as choosing pure synthetic oil.
Further, GM says that if a customer has an engine failure that is traced to oil or lubrication issues, and if the customer does not use dexos 1 oil in their gasoline-powered GM vehicle, that act alone could void the warranty. The same goes for GM vehicles with diesel engines, which use a diesel-specific “dexos 2” oil blend.
Not Just GM
But let’s not be too quick to admonish GM for requiring this new oil or speculate that this is bound to drive away potential customers. The reality is that the cost for an oil change will be going up for everyone. That’s because we're in the launch period for a new-and-improved oil standard, which will eventually be commonplace across the industry.
Superseding the current standard, called “GF-4,” will be oils made to the new “GF-5” specification. These are beginning to show up in auto parts stores and oil change shops across the country this fall. Manufacturers other than GM are expected to begin factory-filling vehicles with GF-5 oils starting with 2012 models.
The new GF-5 performance specification was developed by the International Lubricants Standardization and Approval Committee (ILSAC) with input from automakers, oil refiners, and oil additive manufacturers. Like the GM-specific dexos 1 oil, GF-5 oils deliver better performance but cost more. Expect to pay about 15-20 percent over comparable GF-4 oils.
The new GF-5 and GM dexos oils are superior to most non-synthetic oils. The new formulations are also backwards compatible, meaning they will work in engines that have used older oil formulations.
How More Expensive Oils Can Save Money
Dexos and GF-5 oils are more expensive than prior oil formulations because these new oils deliver superior performance. Oil makers start with higher-quality base oil and then add more additives, which make them more expensive. Additives can make up as much as 30 percent of a typical quart of oil.
These high-performance oils can pay for themselves, but not how you might think. Many of these oils will advertise the benefit of "higher fuel economy." The claim isn't false because dexos and GF-5 oils do reduce internal engine friction that will improve fuel efficiency. Unfortunately the gains will be so small -- less than one percent -- that the average driver will never notice.
The real payback comes from extending the time and mileage between oil changes. Dexos and GF-5 oils allow drivers to drive more miles between oil changes without needing to worry about a loss of lubrication qualities, the buildup of sludge, or damage to sensitive emission control devices. Depending on driving habits, oil changes could extend beyond 10,000 miles.
What Should Your Repair Cost?
Click Here To Get Free Estimates On Common Auto Repairs
While that may be heresy compared to the 3,000-mile oil change interval your local shop recommends, it’s the new reality of oil change intervals. Thanks to the use of in-vehicle oil life monitoring and these new oil formulations, there’s no longer one specific mileage interval to adhere to. In other words, changing your oil every 3,000 miles will likely lead to wasting oil by replacing it before it is actually necessary.
Both dexos 1 and GF-5 oil specifications also offer more comprehensive protection for engines, including the latest generation of turbocharged engines and those that run on ethanol (E85). Turbochargers and E85 each demand specific characteristics from engine oils. Resistance to heat is especially important for turbo engines, while protection against rust is critical for vehicles running on E85. In other words, running the right oil might mean the difference between an engine that lasts hundreds of thousands of miles, and one that doesn't.
The dexos oil also has some unique properties that General Motors engineers required. One characteristic is better resistance to aeration (the whipping of air bubbles into the oil). Some GM engines with variable camshaft timing use engine oil as a hydraulic fluid to move components within the engine. If air bubbles are in the oil, components actuated by engine oil will not move as they were designed to, limiting engine performance and efficiency.
ILSAC vs. API vs. GM dexos Classifications
Golden Globes, Emmys, The People's Choice, The Academy Awards: Just like the multiple shows that bestow honors upon the entertainment industry, there are multiple organizations that promote oil standards.
This, of course, can completely confuse consumers. But here's some help: Many drivers are aware of the American Petroleum Institute's (API) grading of oils. Their trademarked "star burst" graphic is on most quarts of oil. The graphic advertises that the oil is licensed by the API and shows the grade of oil you're buying. The API is a consumer-directed organization.
The ILSAC, on the other hand, is a trade organization that works primarily with vehicle manufacturers and those who commercially produce engine oil. The API and ILSAC have worked cooperatively for years, and their ratings track on a parallel path.
The API "SM" certification has been the standard since 2005. "SM" is the equivalent of the ILSAC GF-4. To keep up with the new GF-5 specification, the API revised their certification with the new "SN" rating. So SN = GF-5. The official rollout for SN oils begins later this year.
Got that? Here’s the bottom line: use the oil recommended for your vehicle and you won’t have a problem.
03-23-2011, 09:15 AM
#5
Team Owner
from the horses mouth GM
One global company; one engine oil standard.
GM manufactures cars and trucks in 34 countries and sells them in over 140 countries. These vehicles contain an array of more than 20 different engine sizes. To function well and to last a long time, these increasingly high-performance engines need a consistently high-quality oil, and that quality and uniformity needs to be available anywhere in the world.
Now it is.
GM Powertrain engineers have developed dexos™ - a proprietary, global engine oil specification designed specifically to meet the requirements of GM vehicles. So, whether it's a Chevrolet, Opel, Daewoo, or Holden driven in Pennsylvania, Munich, Seoul, or Sydney, dexos™ engine oils are recommended by GM for use in their vehicles.
The dexos™ 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. dexos™ is an exclusive trademark of General Motors. Only those oils displaying the dexos™ trademark and icon on the front label have been certified and licensed by GM as meeting the demanding performance requirements and stringent quality standards of the dexos™ specification.
GM has found that using the wrong oil can affect engine performance and, in the worst case scenario, damage or harm the engine. Only licensed dexos™ products have been certified by GM to meet the dexos™ specification. Unlicensed products have not gone through GM's rigorous testing process, are not monitored for quality, and are not approved or recommended for use in GM vehicles. Unlicensed product quality and suitability for GM vehicles cannot be guaranteed and, therefore, use of unlicensed products may result in lower levels of performance and engine damage not covered under warranty.
There are many authentic licensed dexos™ products readily available at retail outlets, service repair shops, quick lube operations, and GM service centers. dexos™ licensed products are easy to identify. Simply look for the dexos™ icon on the front label and the 11 digit alphanumeric dexos™ license number on the back label. 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.
For a list of licensed dexos™ products, click here to go to licensed brands.
dexos™ is recommended by GM for use in all its vehicles except those with Duramax diesel engines requiring the use of API CJ-4 engine oil. dexos™ is fully backward-compatible and can be used in older vehicles. It is specified in the owner's manual for all 2011 and later model years, with the exception of Europe where dexos™ is specified starting in model year 2010.
* dexos1™ is designed for use with gasoline engines and replaces GM-LL-A-025, GM6094M and GM4718M
* dexos2™ is designed for use with light-duty diesel engines and replaces GM-LL-B-025 and GM-LL-A-025
The dexos™ specification and trademark are exclusive to General Motors, LLC. The Center for Quality Assurance monitors and publishes licensed dexos™ products to assist consumers in making informed decisions when purchasing engine oil to service their vehicle.
Using engine oils other than authentic licensed dexos™ products could result in reduced engine performance or damage not covered under warranty.
GM manufactures cars and trucks in 34 countries and sells them in over 140 countries. These vehicles contain an array of more than 20 different engine sizes. To function well and to last a long time, these increasingly high-performance engines need a consistently high-quality oil, and that quality and uniformity needs to be available anywhere in the world.
Now it is.
GM Powertrain engineers have developed dexos™ - a proprietary, global engine oil specification designed specifically to meet the requirements of GM vehicles. So, whether it's a Chevrolet, Opel, Daewoo, or Holden driven in Pennsylvania, Munich, Seoul, or Sydney, dexos™ engine oils are recommended by GM for use in their vehicles.
The dexos™ 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. dexos™ is an exclusive trademark of General Motors. Only those oils displaying the dexos™ trademark and icon on the front label have been certified and licensed by GM as meeting the demanding performance requirements and stringent quality standards of the dexos™ specification.
GM has found that using the wrong oil can affect engine performance and, in the worst case scenario, damage or harm the engine. Only licensed dexos™ products have been certified by GM to meet the dexos™ specification. Unlicensed products have not gone through GM's rigorous testing process, are not monitored for quality, and are not approved or recommended for use in GM vehicles. Unlicensed product quality and suitability for GM vehicles cannot be guaranteed and, therefore, use of unlicensed products may result in lower levels of performance and engine damage not covered under warranty.
There are many authentic licensed dexos™ products readily available at retail outlets, service repair shops, quick lube operations, and GM service centers. dexos™ licensed products are easy to identify. Simply look for the dexos™ icon on the front label and the 11 digit alphanumeric dexos™ license number on the back label. 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.
For a list of licensed dexos™ products, click here to go to licensed brands.
dexos™ is recommended by GM for use in all its vehicles except those with Duramax diesel engines requiring the use of API CJ-4 engine oil. dexos™ is fully backward-compatible and can be used in older vehicles. It is specified in the owner's manual for all 2011 and later model years, with the exception of Europe where dexos™ is specified starting in model year 2010.
* dexos1™ is designed for use with gasoline engines and replaces GM-LL-A-025, GM6094M and GM4718M
* dexos2™ is designed for use with light-duty diesel engines and replaces GM-LL-B-025 and GM-LL-A-025
The dexos™ specification and trademark are exclusive to General Motors, LLC. The Center for Quality Assurance monitors and publishes licensed dexos™ products to assist consumers in making informed decisions when purchasing engine oil to service their vehicle.
Using engine oils other than authentic licensed dexos™ products could result in reduced engine performance or damage not covered under warranty.
