Will using a heavier weight oil reduce oil consumption?

What is this? Unfortunately, the thicker engine oil will not stop your car from burning oil. This solution has been brought up often, with the idea being that a more viscous oil will not flow as easily and have a more challenging time getting past worn-out valve guides.

How can I slow down my oil consumption?

There are also "high mileage" motor oils that are specially formulated with extra additives to slow oil consumption. Switching to a "high mileage" oil the next time you change oil may help reduce oil leaks and burning. Switching to a heavier viscosity motor oil may also help reduce oil consumption.

What happens if you use a heavier weight oil?

Since thicker oil doesn't transfer heat as well as thinner oil, operating temperatures will increase, possibly leading to accelerated chemical break down (called “oxidation“) and harmful sludge and deposits.

Will higher viscosity oil reduce oil consumption?

This does not mean that the lower the motor oil's viscosity is the better the oil. It just means that you should always stay within the range specified by the manufacturer and never use a thicker oil than allowed only to decrease oil consumption.

What happens if you put 10w40 instead of 5w30?

Your vehicle does not use 5W-30 oil. 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.

Pat's Perspectives - Thicker Oil (#2)

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.

When should I use thicker oil?

There are some circumstances where drivers have used thicker oil in an engine. If, for instance, clearances between engine components have increased, gotten sloppy, a thicker oil can help to fill the void. Within reason, thicker oil maintains a better lubricant film between moving parts.

What happens if you use 10w30 instead of 5w30?

Both 5w30 and 10w30 engine oils have a similar SAE rating, meaning that they will perform the same at high or operating temperatures. The digits 30 indicates the viscosity of the oils when in high temperatures. 10w30, however, will thicken more when in a cold climate. 5w30 is much suitable during the cold season.

Can I use 5w40 instead of 5w30?

In practice, this means that each oil is just as viscous at lower temperatures and will remain viscous at -30°C, however 5w40 oil outperforms 5w30 oils at higher temperatures, being effective up to ambient temperatures of 50°C, as opposed to 30°C.

Will 5w30 hurt a 5W20 engine?

As you can see, there's quite the difference in how these two types of oil perform. With these numbers in mind, it's clear that using 5W30 motor oil instead of 5W20 could lead to serious damage to your engine.

Is 5w30 oil thicker than 10w30?

Both the oils have similar viscosity at 100 degrees Celsius but 5w30 grade oil will thicken less than 10w30 grade oil in cold climate. This means 5w30 grade oil will flow effectively in low temperatures, whereas 10w30 oil will flow effectively in high temperatures because of the smaller temperature window.

What happens if you put 5w30 instead of 5W20?

If you use 5w30 oil instead of 5w20 when it is not recommended or approved by your owner's manual, it can void your car's powertrain warranty, reduce engine efficiency, and possibly even damage your engine in the long run. Hopefully, this helps!

How much oil burn is normal?

It is a fact that most engines will burn some oil. The majority of manufacturers consider one quart of oil in the range of 1,500 miles to be acceptable. It should also be pointed out there are some performance vehicles that will consume a quart of oil in less than 1,000 miles and is also considered acceptable.

Is thicker or thinner oil better?

Engine oil viscosity

Thin oils reduce friction in engines and help engines start quickly during cold weather. Thick oils are better at maintaining film strength and oil pressure at high temperatures and loads.

Can I use 0w40 instead of 5W20?

Re: Can I use 0W-40 high performance synthetic oil

The 0 part means its got the cold-weather viscosity of any 0 weight oil, and will pour even thinner than 5W20 when cold. That's good.

Will synthetic oil raise oil pressure?

The synthetic oil cleans the dirt accumulated in an old engine, which increases the oil flow, decreases the pressure and increases the amount of oil that reaches the combustion chamber, increasing the consumption of lubricant.

Is 10w30 better for high mileage?

10W-30 motor oil makes for a decent high-mileage oil. It gives a better fuel economy while reducing the oil consumption for older engines. Older engines with more than 75,000 miles on them require a thicker oil that will properly lubricate their critical engine parts and prevent oil leaks, sludge, and deposits.

Can you put 10W40 in a 10w30 engine?

Mixing 10W30 with 10W40

Some say that mixing them is fine as long as you don't live in freezing weather. Even if you put together synthetic and conventional blends of these motor oils, they show no harm to your vehicle. However, this is true only if you mix in a quart of the other type to your usual engine oil.

Is it OK to use 10w30 instead of SAE 30?

Can I Use 10w30 Instead of SAE 30 in My Lawn Mower? You can use 10w30 instead of SAE 30 in your lawn mower if you want. Since 10w30 has the same viscosity grade at operating temperature, you won't run into any problems by using it instead of SAE 30.

Will 20w50 hurt my engine?

Is 20W-50 Oil Bad For My Engine? 20W-50 is not a very popular oil viscosity. In the wrong engine, it can lead to sludge, excess friction, varnish deposits, problems with oil burning and oil pressure, and even affect your engine life.

Should you use heavier weight oil in winter?

Since lower-viscosity oils flow more readily, they provide better cold-weather startup protection compared to higher-viscosity oils. Thus it's beneficial to switch to a lighter viscosity motor oil in winter if you can.

What oil should I use for a high mileage truck?

In this article:

Best Synthetic High Mileage Oil: Mobil 1 High Mileage Full Synthetic. Best Synthetic Blend: Valvoline High Mileage With MaxLife Technology. Best Conventional High Mileage Oil: Pennzoil High Mileage. Best Value: Castrol Edge High Mileage.

Is 10w40 good for high mileage?

Designed for high mileage vehicles

Mobil 1 High Mileage 10W-40 motor oil is recommended by ExxonMobil for use in high mileage vehicles (even those that have used lower quality conventional oils^†), including: Cars. Trucks.

Should I use 10w30 or 10w40?

There's not much difference between 10W-30 and 10W-40 motor oil. What sets them apart has more to do with temperature fluctuations and engine load. For moderate weather, either engine oil grades should work fine. Your choices will become more critical when you start getting into high-heat situations.