Quick Answer: Which Is Better 10w30 Or 20w50?

Will 20w50 increase oil pressure?

With 10w30 the engine will produce a maximum of 55 psi of oil pressure at operating temperature.

With 20w50 racing oil and the same operating conditions, it will produce 70 psi of oil pressure..

What weight oil is best for high mileage?

Best Motor Oil for High Mileage Engines [4 Recommended Buys]Valvoline (VV150-6PK) MaxLife 10W-40 Higher Mileage Motor Oil. … Pennzoil High Mileage Vehicle Oil. … Mobil 1 45000 5W-30 High Mileage Motor Oil. … Castrol 06470 GTX 20W-50 High Mileage Motor Oil.

What’s the best oil for high mileage engines?

The Best High Mileage OilValvoline High Mileage Motor Oil. … Castrol GTX High Mileage Synthetic Motor Oil. … Mobil 1 High Mileage 5W-30 Motor Oil. … Pennzoil High Mileage Oil. … Castrol High Mileage Advanced Full Synthetic Motor Oil. … Royal Purple High-Mileage Synthetic Motor Oil. … AmazonBasics High Mileage Motor Oil. … Mobil 1 High Mileage 5W-20 Motor Oil.

Is it OK to use 20w50 oil?

If an engine oil has a high viscosity, this means that it is thick; a low viscosity means that it is thin. Select an engine oil with an SAE (viscosity) classification suitable for the prevailing outside temperatures. … F, and 20W50 is OK to use at ambient temperatures above 23 deg.

What grade oil is best for summer?

As a general rule, you’ll get the best protection in the summer when you use a slightly thicker grade of oil, such as a 10W30 instead of a 5W30. Engines need a thicker oil in the summer months because of the summer heat and its effects on thinning the oil out.

When should I use 20w50 oil?

Warmer Temperatures 20W50 motor oil is suitable for warmer climates, where the higher temperature causes the oil to thin. It is also useful for vehicles subject to hot temperatures and for those used for high-stress activities such as hauling or pulling trailers.

Which is better 10w30 or 20w40?

20w40 is thicker at high temperatures (normal operating condition of engine) compared to 10w30. For proper lubrication at operating temperatures high viscosity is desirable. So 20w40 will be good compared to 10w30 at normal operating conditions. And at low temperatures 20w40 is thicker as compared to 10w30.

Is 20w50 good for high mileage?

The viscosity level of engine oil 20W50 is geared toward racing engines, as opposed to high-mileage engines, that run extremely hot and need heavy load operation. … Since its viscosity is so great, it can drag down the functioning of the crankshaft, resulting in less horsepower.

What is 20w 50 oil used for?

SAE 20w-50 Oil – Conventional & High Mileage A SAE 20W-50 motor oil is typically used in older vehicles or in particularly warm climates. Castrol GTX 20W-50 has been specially formulated to help extend the life of your engine by keeping it free from sludge, even when operating in extremely high temperatures.

Is 10w40 good for high mileage?

The slightly thicker oil film from the heavier base weight oil – 10W – can help protect worn engine bearings as well. As long as you’re not hearing knocking or serious mechanical noises from the engine, the heavier oil should buy you many more miles of service from your vehicle.

Which is the best engine oil?

Mobil 1Our pick for the best motor oil is Mobil 1 High Mileage 10W-30 Motor Oil. It’s one of the best synthetic oils for high-mileage vehicles, reduces leaks, and minimizes sludge buildup. For a less expensive option, consider the Valvoline High Mileage Synthetic Blend Motor Oil.

What is 10w 50 oil used for?

10W means that the oil is suitable for winter temperatures down to -30 °C. The second part of the SAE class, the number ’50’, indicates the kinematic viscosity at 100 °C. With the ADDINOL POLE POSITION 10W-50 this is in the range of 16.3 – 21.8 mm²/s and can therefore also be used in high-performance engines.

Can you use thicker oil in an older engine?

A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. The slightly thicker oil film from the heavier base weight oil — 10W — can help protect worn engine bearings as well.

Will thicker oil stop oil burning?

A lot of oil-burning takes place because an engine’s piston rings are worn out, and thicker oil won’t fix that. Using thicker oil is also a particularly bad solution for modern cars. … They use low-viscosity oils that splash easily all over the moving parts of the engine to make sure they’re all lubricated.

What are the different grades of oil?

The 11 viscosity grades are 0W, 5W, 10W, 15W, 20W, 25W, 20, 30, 40, 50, and 60. In the United States, these numbers are often referred to as the “weight” of a motor oil, and single-grade motor oils are often called “straight-weight” oils.

Will heavier oil hurt my engine?

Not only that, but the engine will waste energy pumping the thicker motor oil, reducing fuel economy. Since thicker oils don’t transfer heat as well as thinner oils, operating temperatures will increase, too, possibly leading to accelerated chemical break down and harmful sludge and deposits.

Can you use 20w50 instead of 10w30?

SAE 20W50 is thicker than 10W30, so it’ll be longer to reach your engine parts during cold start, but the 20W50 could give your engine extra protectiom when it’s heat and being used for long time running. The sound would be smoother than the 10W30 even you get less responsive on the acceleration.

Which is better 10w40 or 20w50?

the huge problem is the other number though. The smaller number, (the 20 part of 20w-50) describes how the oil behaves at 40 deg C and a 20w at 40 deg C is about 10 times thicker than your engine wants. A 10w-40 is better at around 6 times thicker and a 0w-40 is much better at about 4 times thicker.

Is 20w 50 oil thick?

The “20W” indicates how quickly the engine will start when cold or in cold weather. The “50” refers to the thickness of the oil when the motor has been running for a while. 20W50 motor oil is relatively viscous and thick. Most modern oils are 10W40 or even 5W40.

What oil is best for older engines?

Full synthetic oils are always a good choice for older vehicles that have been used a lot. They are perfect for lubricating motor parts as they do it much better than any other oil.

Will thicker oil increase compression?

Adding Lucas Heavy Duty Oil Stablizer during oil changes makes engine oil thicker, slicker, and able to withstand higher temperatures. Because the product provides a flexible seal between the cylinder walls and piston rings, the compression ratio is increased.