Question: Which Is Better 20w50 Or 10w30?

Is 20w50 good for high mileage?

Considerations.

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..

Should I 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 the wrong oil damage my engine?

The brand of motor oil matters little, but its viscosity grade (10W-30, for example) is important. Use only what the owner’s manual specifies. Using the wrong oil can lead to reduced lubrication and shorter engine life. If the manual says to use synthetic oil, do so.

Does 10w30 hurt 5w20 engine?

The oil will eventually dissipate compared to a 10w30. Conventional oil is known to burn off fairly easy compared to a full synthetic oil under hard driving conditions. I know from experience. There should be no issues at all running a 5w30 or a 10w30 oil in a 5w20 spec’d vehicle.

Will thicker oil damage 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.

What oil is best for older engines?

When you’re choosing the best oil for older cars or high mileage engines, there are several criteria you can look at.Pennzoil High Mileage Conventional Motor Oil. … Castrol GTX Part-Synthetic High Mileage. … Valvoline MaxLife High Mileage Synthetic Blend. … Mobil1 High Mileage Engine Oil. … Amsoil Premium Protection Motor Oil.More items…•

Which is better 10w40 or 20w50?

Using the 20w50 in the summer is the best in the summer and the 10w40 is best in the winter. But it really doesn’t make much of a difference.

Which is better 5w20 or 10w30?

10W30 is thicker and protect older engine with its sealing capability. 5W20 is thinner multi-grade oil that is pertinent for quick starts in the lowest temperatures. In order to protect your car from internal damages, it is beneficial to use only specified engine oil by the manufacturers.

Which is the best engine oil?

Top 10 Best Motor OilsTable of contents. Editor’s Pick: Castrol GTX Motor Oil. … Editor’s Pick: Castrol GTX Motor Oil. … Valvoline Daily Protection Motor Oil. … Quaker State Advanced Durability Motor Oil. … AmazonBasics Motor Oil. … Havoline Motor Oil. … Pennzoil Motor Oil. … Lucas Oil Hot Rod & Classic Motor Oil.More items…•

What do you use 20w50 oil for?

SAE 20W50 Synthetic Motor Oil. NEO SAE 20w-50 is designed for high performance engines of all kinds, and for any engine that is pushed to the limit of performance and temperature. Excellent for trailer towing in high temperatures and for racing engines, in any engine that can use this viscosity grade.

Can I use 20w50 instead of 10w30?

So if you are in a cooler climate its better to stick with 10w-30, if that’s not available then you can use 20w-40 it will not damage the engine but it is not better. If you are in moderate to hot climate it will be better in some cases if you choose 20w-40, it will provide better lubrication in higher temperature.

When should I use 20w50 oil?

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.