what does the numbers on oil mean

What Does The Numbers On Oil Mean? Oil grades relate to an oil product’s performance at operating temperature (about 212 degrees Fahrenheit in your engine). You might be familiar with terms such as “30-weight” or “10W-30” oil. Those numbers refer to the grade. The higher the number, the thicker the oil. The lower the number, the thinner.

Which oil is thicker 5w30 or 10w30? 10w30 is more viscous than 5w30 and is also the thicker fuel amongst the two. This changes the efficiency of the two oils as well. 5w30 is less viscous and therefore can reach even the difficult parts of the engine for lubrication. But this is not possible with 10w30 since they are thicker.

What do the 2 numbers on oil mean? As you’ve probably noticed, most automobile motor oils have two numbers. These are multi-grade oils, which means they are non-Newtonian fluids. The first number describes viscosity at low temperatures. The second number refers to viscosity at normal engine operating temperatures.

Can I use 5w30 instead of 5w20? Can You Use 5w30 Instead Of 5w20. It is not recommended. Although they both have the same winter rating of 5, the thickness (viscosity) of 5w30 is a bit higher than 5w20. That means your engine’s at stake for using the high viscosity oil.

What’s the difference between 5W 20 and 5W-30?

When it comes to their higher operating temperature performance, 5W30 motor oil performs slightly better than 5W-20 and is a thicker oil than its counterpart. 5W30 motor oil would be more robust and not break down very easily at a higher temperature.

Is Thicker oil better for older engines?

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.

What happens if you put 10W30 instead of 5W-30?

Synthetic oils will mix perfectly, as long as they have the same chemical composition. As a result, mixing 10w30 and 5w30 is not a problem since one will be topping up. It is not harmful to mix engine oils because 5w30 and 10w30 engine oils have close viscosity, so mixing them is not harmful.

What does 10w30 mean?

Answered January 07 2020. The 10W30 designation on engine oil means that the viscosity of the oil is rated at 10W when an engine is cold and 30 when the engine is hot. This is different than an oil labelled 5W30, which has a thinner viscosity when the engine is cold at 5W.

What 5W-30 oil means?

5w30 motor oil has a winter viscosity grade of five, meaning it’s less viscous (less thick) at very low temperatures compared to, say, 10w30. It has a hot viscosity grade of 30, which means it is less viscous at high temperatures than an oil such as 5w50.

Can you put 10w30 in a 5w20 engine?

Notwithstanding the recommendations of the car manufacturer, mixing 10w30 and 5w20 will not cause any sort of harm to the engine. However, a few drivers claim that it is safer to combine two multi-grade or straight weight oils, rather than mixing multi-grade with straight weight oils.

What is the difference between OW 20 and 5w20?

As 0W20 is a far thinner oil than 5W-20, it is more stable at cold temperature than the latter and flows smoothly through the critical engine parts. 5W-20 is a comparatively thicker viscosity oil and is better for a normal operating temperature range of -22°F to 68°F.

Can putting the wrong oil damage engine?

Using the wrong fluid can cause poor lubrication, overheating, and possibly transmission failure. A mechanic might not be able to reverse the damage, even by flushing the transmission. Mistakenly adding motor oil or brake fluid can also destroy your transmission.

What happens if I use 5W-30 instead of 0W20?

If you add 5w30 to your vehicle instead of 0w20, the performance of your vehicle will not affect much. Your vehicle will continue to run smoothly and providing you comfortable rides.

What happens if I mix 5W20 and 5W-30?

The engine components will not get enough oil coating as the oil would be too thick to flow through and might result in overheating, wear and tear, and oil starvation. The engine parts would also face more resistance while moving against one another. A 5W30 oil might be safe in 5W20 engines when mixed with 5W20 oil.

Which oil is better 5W20 or 5W-30?

5w30 is by far the most common on the market. However, the lower viscosity version, 5w20, is also recommended by many vehicle manufacturers. 5w20 can provide better protection in climates with lower temperatures as the lower viscosity will improve oil movement in freezing conditions.

Is it OK to put synthetic oil in an old car?

It protects better, performs better, and lasts longer, and it’s no longer made with a chemical compound that could hurt older vehicles.

When should I use 20W50 oil?

What Is 20W-50 Oil Used For? 20W-50 is a common motor oil used in moderate-to-large diesel and gasoline engines, high-performance motorcycle bikes, and aviation vehicles. Its resistance to thinning at high heat also makes it popular as a racing oil and high temperature driving.

Is it OK to use full synthetic oil in older cars?

Myth: Full synthetic oil is not good for high mileage cars or older vehicles. The myth is rooted in the idea that synthetic oil is “slipperier”—lower in viscosity, or not as compatible with seals and will therefore leak or leak more in places conventional oil might not. Again, completely untrue.

What does the W stand for in oil?

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 oil is thicker than 5W-30?

10w30 is thicker than 5w30 because it has a higher viscosity in low temperatures. The engine oil will flow slower than 5w30 during the cold season. Thicker or higher viscosity metal oil has a better seal compared to low viscosity oil. Thicker oil offers better lubrication of motor and engine parts.

What oil is thicker than 10W30?

The quick answer is 10W40 is a thicker engine oil than 10W30 at higher temperatures. Both have almost the same characteristics, and the only difference is the oil viscosity.

Which is better 10W30 or 20w40?

20w 40 is a thicker oil when compared to the original 10w 30 oil. So 10w 30 oil is going to flow better than 20w40 oil when you initially start it and also run it. If the oil flows better the better the oil will lubricate and protect engine parts.

Which is better 10W30 or 15w40?

Because 10W-30 is thinner than 15W-40 oil, its film strength can be weaker and it can be more prone to oxidation. Therefore, high quality additives are needed to compensate for those weaknesses in order for a 10W-30 engine oil to protect as well and last as long as a 15W-40.

What does 10w40 mean?

10W-40 is the viscosity, or weight, of the motor oil as defined by the Society of Automotive Engineers (SAE for short). A 10W-40 oil has a viscosity grade of 10W at a low temperature and 40 at a higher temperature. What does this mean, exactly? Motor oil thickens when it’s cold and becomes thinner when heated up.

Will thicker oil damage my engine?

Using oil that is thicker than recommended may lead to a decrease in fuel economy, a higher load on your engine, and even a shorter life for your engine. Conversely, using thinner, lighter-weight oil than recommended can cause excessive wear and shorter life. Follow the manufacturer’s instructions.

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