Question: Is Thinner Or Thicker Oil Better?

Is it OK to use 15w40 instead of 10w40?

A 10W40 oil will be thicker in the cold than 15W40 oil, but they will have the same viscosities at higher temperatures.

The winter viscosity number dictates cold-start performance.

10W40 oil will perform cold starts better than 15W40 oil..

Will thicker oil stop lifter noise?

If the oil is too thick then it will not pass through the tiny holes resulting in an increase in friction. The increased will not only lead to noisy lifters, but it may also increase the temperature a little bit. On the contrary, if the oil is too thin, it won’t provide proper lubrication as well as padding.

Is it better to use thicker oil?

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.

Should I use thicker oil in a high mileage 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.

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 thicker 5w30 or 20w50?

20w50 is actually thicker than 5w30. This will result in less fuel efficiency, less horsepower, and more engine damage because it will have to work harder to rotate.

Does 10w40 hurt 5w30 engine?

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.

What is 20w50 oil used 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.

Does engine oil get thicker or thinner with age?

Of course the oil gets thicker with age because it’s loading up more and more with all the [censored] it collects and cleans. It only gets serious if the oil gets low on TBN and so those acids aren’t neutralized and so dirt starts to build up FAST and the oil thickens.

Does thicker oil burn less?

Slightly thicker oil won’t hurt that worn engine, and if your battery is good, it’ll turn over fast. 2. Add two cans (30 ounces) of Alemite CD 2 for Oil Burning, which replaces one quart of the oil you would normally use during an oil change.

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.

How do you fix high oil consumption?

While excessive oil consumption can be a costly and timely fix , sometimes there is an easier fix, such as the PCV valve or oil pan gasket. In the case of internal engine parts, like piston rings, unless you’re an experienced DIYer, it may be best to leave this option to the mechanic.

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.

Is it OK to use 0w20 instead of 5w30?

0w-20 is simply a different viscosity of oil. It won’t be an advantage to your engine if your manufacturer suggests you use 5w-30 and may indeed be a detriment to your engine. 0w-20 may be a recommended oil for certain conditions for your engine and may not be recommended for your engine.

Why is my car losing oil but no leak?

If the engine isn’t leaking oil, and the PCV system is working as it should, that means your engine is probably wearing out inside. … That oil will burn up in the engine and could lead to damage. To fix this problem, you’ll need new piston rings installed, which will require the engine to be significantly dismantled.

Is it okay to mix 5w30 with 10w40?

As posted above, mixing 5w30 with 10w40 will give you an oil that performs somewhat better in the cold than 10w40, but less good cold than 5w30, and that has a viscosity a bit higher than 5w30 but a bit lower than 10w40. … Mixing different oils will not improve the performance or efficiency of the engine in any way.

Which oil is thicker 5w30 or 10w40?

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.

Is synthetic oil thicker or thinner?

When the additives wear out in a synthetic oil it still has the same viscosity. It will not thin as a mineral oil.

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 happens if I put 10w40 instead of 5w30?

If you use 10-w-40 instead of 5-w-30 specified by the manufacturer then the viscosity of 10-w-40 used by you will be higher and oil thicker than what is specified during winters. Similarly the oil viscosity will be higher and oil thicker than specified during summers.

Is it OK if I put 10w30 in a 5w30?

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.