Walmart Oil
Logistics Pro
Joined: Nov 2002
Posts: 4,788
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From: Mansfield, TX USA
From GM's TechLink Website:
How the Oil Life System Works
GMOLS is a computer-based algorithm that assesses engine combustion events, temperature, vehicle use, and other parameters to determine optimum oil change intervals. Oil changes are now called for when actually needed, instead of depending on generic time or mileage interval tables. Mild highway driving in a mild climate can yield change intervals of 7,000 miles (11,000 km) or more, and as high as 12,000 miles (19,000 km) for some vehicles. Short trip driving in cold weather may reduce intervals to 3,000 miles (5,000 km) or less. Most people driving a combination of city and highway will likely see intervals of about 6,000 miles (10,000 km).
Briefly, the Oil Life System is programmed with a certain number of engine revolutions. As the engine runs, this number is reduced until it reaches zero, and the Oil Life light or message comes on. But there’s more. Operating the engine under low or high temperatures, and under high load conditions subtracts (penalizes) extra revolutions, so the light comes on sooner.
GMOLS is a computer-based algorithm that assesses engine combustion events, temperature, vehicle use, and other parameters to determine optimum oil change intervals. Oil changes are now called for when actually needed, instead of depending on generic time or mileage interval tables. Mild highway driving in a mild climate can yield change intervals of 7,000 miles (11,000 km) or more, and as high as 12,000 miles (19,000 km) for some vehicles. Short trip driving in cold weather may reduce intervals to 3,000 miles (5,000 km) or less. Most people driving a combination of city and highway will likely see intervals of about 6,000 miles (10,000 km).
Briefly, the Oil Life System is programmed with a certain number of engine revolutions. As the engine runs, this number is reduced until it reaches zero, and the Oil Life light or message comes on. But there’s more. Operating the engine under low or high temperatures, and under high load conditions subtracts (penalizes) extra revolutions, so the light comes on sooner.
Last edited by jschira; Aug 30, 2004 at 12:07 PM.
Senior User
Joined: Mar 2004
Posts: 100
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From: KY
While Lubrizol etc. may be the supplier of the additives that go into a motor oil,the company that owns the oil in question is the one that has to have the oil tested to meet API standards.The oil company is the one that requests a package to meet their requirements.
The oil company is still the owner of the final product and recipe even though the additive package comes from another company.
SuperTech oil is the trademark of Wal-Mart,it is blended by Warren to meet API and Wal-Marts standards.
While the additive package of an oil may belong to the additive company,the final recipe belongs to the oil company that makes and or blends the oil into the final product.
I worked in manufacturing for several years.We had products that used a base or additive package from other companies,however,the final product and the recipe involved to make the said product belonged to our company,not the base suppliers company.
The oil company is still the owner of the final product and recipe even though the additive package comes from another company.
SuperTech oil is the trademark of Wal-Mart,it is blended by Warren to meet API and Wal-Marts standards.
While the additive package of an oil may belong to the additive company,the final recipe belongs to the oil company that makes and or blends the oil into the final product.
I worked in manufacturing for several years.We had products that used a base or additive package from other companies,however,the final product and the recipe involved to make the said product belonged to our company,not the base suppliers company.
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