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The short answer:The numbers represent the viscosity of the oil and the W stands for WINTER. The long answer:The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor oils according to their viscosity characteristics.
What does the W stand for in 5W-30?
5W-30 means that this is a multigrade oil. This is indicated by the two numbers separated by a “W” 5W – shows thickness/viscosity of the oil on a start-up – when you start the car (W – stands for Winter, this indicates oil performance under colder engine temperatures when the engine has not been running).
What does the W in 10w30 stand for *?
What Does The W In 5w30 10w30 20w50 Stand For? W stands for winter, and 5 is for 5 degrees Celsius, the lowest temperature at which the oil will be poured. A viscosity rating of 30 is determined by the temperature at which the oil is heated.
What is W in engine oil grade?
The “W” stands for winter, not weight as many people think. The lower the number here, the less it thickens in the cold. So 5W-30 viscosity engine oil thickens less in the cold than a 10W-30, but more than a 0W-30.
What 5W 40 oil means?
5w40 motor oil has a winter viscosity grade of five, meaning it’s less viscous at very low temperatures, compared to, say, 10w40. It has a hot viscosity grade of 40, which means it is just as viscous as 10w40 at high temperatures but less viscous than oils such as 15w50.
Can I use 10W-40 instead of 5w30?
Your vehicle does not use 5W-30 oil. The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even 10W-40 is still perfectly OK to use if outdoor temperatures are below freezing.
Is Jiffy Lube publicly traded?
Jiffy Lube went public in 1987, and had opened over 1,019 franchises and company stores by 1989. In 1991, Jiffy Lube became a subsidiary of Pennzoil. Pennzoil-Quaker State was ultimately purchased by Shell Oil Company in 2002.
What does the W after a rating in 5w 20 signify?
The W in the name stands for “winter,” meaning that when the oil is cold, it behaves like a 5-weight in that it has good cold-start flow properties, but has the thick, protective film of a 20-weight when it heats up to normal operating temperature. Understand that this does not mean that the oil thickens as it warms.
Is 10W-40 thicker than 5w-30?
A 10w-40 motor oil is a thicker oil at startup than a 5w-30 motor oil. Therefore, 10w-40 oil clings to the engine’s moving parts more than the lower viscosity 5w-30 oil.
Can I put 5w40 instead of 5w30?
There’s not going to be much functional difference between a 5w-30 and 5w-40 as there’s a lot of functional overlap in the recommendations. The lower weight might yield better efficiency under light load operating conditions, but higher weight might yield better protection under higher load operating conditions.
Is 5w40 better than 15W40?
The 5w-40 will have a lower viscosity when the engine is started than the 15w-40; consequently the 5w-40 will start easier and lubricate quicker in the cold than the 15w-40. 5W40 oil is thinner than 15W40. The lower digit number of the Multigrade oil indicates the oil’s cold temperature/cold start performance.
Is 5w40 good for diesel engines?
While 15W-40 is suggested as the predominant viscosity for your engine, GM does recommend 5W-40 for temps below -18°C (0°F). AMSOIL’s official stance is that their 5W-40 synthetic diesel oils are safe and perfectly suited for year-round use under all conditions and loads.
Is it okay to use 5W 50 engine oil instead of recommended 10W-40?
You will not damage the engine. Very different. The 5W-50 will pump better and faster at cold temperatures, but will cause more resistance to flow and consume more fuel at operating temperatures, as it will be much more resistant to flow.
Does 10w30 hurt 5w30 engine?
Most oils will mix perfectly, provided they have a similar synthetic. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. Mixing the viscosity of oils will not have any effect on the engine. 5w30 and 10w30 engine oils have close viscosity, and thus there is no harm in mixing them.
What happens if I put 10w40 instead of 10w30?
10W40 oil has a higher viscosity, retaining more thickness than 10W30 as the temperature rises. In that case, 10W-40 motor oil would technically provide better protection against engine wear contact in higher temperatures.
Should you put thicker oil in an older engine?
Older engines use more oil, but it gives them a better fuel economy. Older engines with more than 75,000 miles on them require a thicker oil that will lubricate their critical engine parts and prevent oil leaks, sludge, and deposits from forming.
Did Pennzoil buy Jiffy Lube?
Pennzoil bought out Jiffy Lube International It was acquired by Pennzoil and became a subsidiary. The purchase took place in 1991.
What did Jiffy Lube Live used to be called?
For its first 15 years, the amphitheater was called Nissan Pavilion. In 2010, Live Nation and Jiffy Lube Washington Area Co-op Inc. took over the naming rights, and Jiffy Lube Live was born.
What company owns Jiffy Lube?
Headquartered in Houston, Texas, Jiffy Lube® International is a wholly owned, indirect subsidiary of Shell Oil Company. Jiffy Lube service centers are 100% franchise-owned. So despite being a national corporation, each location is locally owned by people living in your community.
