Quick Answer: What Happens If I Use 10w40 Instead Of 5w30?

Will 5w30 hurt a 0w20 engine?

0w20 is a fully synthetic motor oil.

0w being the winter weight, the viscosity of the oil at freezing temperatures.

5w30 can be fully synthetic, however, putting it into your engine which is designed for 0w20 is a bad idea.

If it isn’t on the fill cap don’t put it in your engine..

What happens if I put 5w20 instead of 0w20?

The 0 oil will flow better at cold temperatures than the 5 oil. Both oils will have the same viscosity at operating temperature. Using one or the other should cause no issues. … Read the owners manual but seriously look at the OEM oil specs and 5w20 is going to be a superior oil than a 0w20.

Which is better 5w30 or 10w40?

The main difference between the 5w30 and 10w40 is the viscosity difference at different temperatures. … The one, 5w30, will be able to flow better when the temperatures are low than the 10w40. So at a lower temperature, the 5w30 oil will be the best to protect the engine.

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.

Is it OK to mix different brands of engine oil?

THE ANSWER IS NO! Even if two different brands of oil have the same viscosity, you still should not be mixing them together. … Technically, using a grade of oil that’s recommended by your car manufacturer is correct. However, if you combine two different brands of motor oil, you could be at risk of damage.

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.

What happens if I 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. … I would suggest using a viscosity for your engine that your manufacturer recommends. You can find that recommendation in your owner’s manual.

Does 10w40 hurt 5w30 engine?

10W-40 would be heavier than what your engine is designed for. So it would actually be more protected in very hot weather or operating conditions. If however you start it in -40c weather it will not have the protection it should have and increased wear will happen.

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.

Can you mix synthetic and regular oil?

There is no danger mixing synthetic and conventional motor oil. However, conventional oil will detract from the superior performance of synthetic oil and reduce its benefits.

Can I use 10w 40 instead of 5w30?

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.

Does it matter if you put 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 indicate 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.

Will using 10w 40 an on engine that is asking for 5w 30 negatively affect my engine if yes in what ways?

With that said, there is very little chance that using 10w40 in your vehicle that specifies 5w30 is going to produce noticeable negative results. If you read your service manual it may even recommend 10w40 for excessively hot climates. You may notice more oil pressure and very slightly less fuel economy.

What happens if I put the wrong engine oil in my car?

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.

Is 10w30 better than 5w30?

5w30 is used for light-duty engines while 10w30 is used for engines which carry heavier loads. 10w30 provides sealing action in the engine due to the fact that it is thicker than 5w30 engine oil. Thinner at lower temperatures. Thicker at lower temperatures.

When should I use 10w40 oil?

When to Use 10w30 vs 10w40 Using 10w30 oil in cold weather will help reduce excessive oil temperatures and drag as the engine warms up. Using 10w40 oil in the summer will help the oil stick to internal components in high temperatures, avoiding the wear and tear from metal-to-metal contact between moving parts.

Will 10w40 hurt a 5w20 engine?

You can let it cool off enough so you do not burn yourself.. but keep it near hot does the best. And a 10W40 would invalidate your warranty… just so you know. In a 5W20 engine. You could use a 0W20 oil (I use 0W20 oil) in cold weather and it would be Ok by Ford.

Can I use 15w30 instead of 5w30?

Even if such a viscosity existed, it would damage your engine at every startup. Quite simply, barring extremely rare circumstances, one should always use the oil type and viscosity recommended by the manufacturer. Honestly you will be fine. An ’03 will have some miles on it and the 15w-30 will no harm your engine.

What happens if you put 5w30 in a 5w20 engine?

Due to the increased resistance of the thicker 5W-30 oil, your engine will produce slightly lower fuel economy and horsepower output. You also risk engine damage when using 5W-30 instead of 5W-20, as the internal engine components are specifically designed to be used with 5W-20 motor oil.

Can you put 10w 30 in a 5w 30 engine?

yes 10w30 should meet the same standards as 5w30 just will not go as low temp.

Is 10w30 better for high mileage?

Both high mileage 5w30 and 10w30 engine oils have the same additives, the only difference is the viscosity at cold startups. Since both oils have the same operating temperature viscosity (30) and additives, they will perform exactly the same. However, 5w30 flows much better than 10w30 during cold starts.