Is 20w50 Good For High Mileage?

Is Thicker oil better for high mileage cars?

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 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 does 20w50 stand for?

The numbers 20W50 refer to the viscosity of the motor oil, set by the Society of American Engineers. This refers to its fluidity or thickness. 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.

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.

Which is better 15w50 or 20w50?

20W50 will maintain its viscosity for longer running than a 15W50. Ofcourse, everybody knows that 15W50 viscosity is better suited than 20W50, but practically, because of more shearing in case of 15W50, 20W50 is better and that is why most companies make 20W50 and not 15W50 when it comes to mineral 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 I mix 20w50 with 10w40?

Yes – mix away.

Which oil is best for high mileage engines?

5 Best Motor Oils for High Mileage Engines#1 – Mobile 1 High Mileage Synthetic Oil.#2 – Royal Purple HMX Synthetic Oil.#3 – Mobile Super High Mileage Synthetic Oil.#4 – Castrol GTX High Mileage Synthetic Blend Oil.#5 – Pennzoil High Mileage Synthetic Blend Motor Oil.

Can you mix 15w50 and 20w50?

But like I said it would be fine to interchange 20w50 with 15w50. You will find it easier to cold start. It depends on the vehicle you use.

Is Thicker oil better for older engines?

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.

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.

Which is better 10w30 or 20w50?

But what’s really important is that you use the oil viscosity the owner’s manual recommends. … So, 10W30 oil has less viscosity (flows easier) when cold and hot than does 20W50. Once the engine is running, the oil heats up.

Can I use 20w50 instead of 10w50?

So, if you’re car calls for a 20w50 then you can safely use 5w50, 10w50 or 15w50 in the synthetic oils. It isn’t technically. It’s only “thicker” in the winter time. … So, if you’re car calls for a 20w50 then you can safely use 5w50, 10w50 or 15w50 in the synthetic oils.

Can I mix 20w50 with 10w30?

No, you’ll be fine. I swear I didn’t know. If you mix viscosity grades such as a 10W30 low-viscosity oil and a 20W50 higher-viscosity oil, it is reasonable to expect that the resulting product will have viscosity characteristics which are thicker than the 10W30, but thinner than the 20W50.

When should I use 20w50?

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.