Can I use 10W 40 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 .
Is 10w40 and 5w30 the same?
5w30 motor oil is synthetic motor oil that has a viscosity of 5 in low temperatures and viscosity of 30 at higher temperatures, usually 100 degree Celsius. 10w40 motor oil is synthetic motor oil that has a viscosity of 10 in low temperatures and viscosity of 40 at higher temperatures, usually 100 degree Celsius.
What happens if you put 10W oil instead of 5W?
Both 5w30 and 10w30 engine oils have a similar SAE rating, meaning that they will perform the same at high or operating temperatures. The digit 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 you put 10W-40 in a 10W 30 engine?
The short answer is yes. Because both oils are formulated to give the same performance, it will be safe for you to use either oil . Some differences between the two oils include viscosity and base oil.
Will thicker oil damage my engine?
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.
What's the difference between 10W-40 and 5W 40 oil?
What is 10W-40 oil used for?
Higher viscosity oil such as a 10W-40 can be useful for older engines burning or leaking oil . We offer MobilTM 10W-40 high viscosity motor oils for use in vehicles with more than 75,000 miles, and a synthetic blend oil when cost is a consideration.
Is Thicker oil better for high mileage cars?
The slightly thicker oil film from the heavier base weight oil – 10W – can help protect worn engine bearings as well. As long as you're not hearing knocking or serious mechanical noises from the engine, the heavier oil should buy you many more miles of service from your vehicle .
Which oil is heavier 5W or 10W?
A 10W oil thickens more than a 5W . The other number indicates the oil's resistance to thinning at high temperatures.
Can I use 20w40 instead of 5W-30?
5w30 will float over 20w40 oil . This will create burning smell and may cause uneven oil temperature.
What happens if I use 10W-40 instead of 10W 30?
Between a 10W-30 and 10W-40, 10W30 motor oil would run smoother in colder climates while a 10W40 would be more effective in preventing engine wear and tear in warmer temperatures .
Is 10w40 good for summer?
These oils were straight grade oils. A 10W flows well in cold weather, to protect the engine at start up, but it's is too thin for use in the summer . A 30 grade oil, thick enough to protect in the heat, was recommended for summer use.
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.
What is the best oil for old engines?
- 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.
What is the thickest oil I can put in my car?
Importance of a Viscosity Scale
In order to have a standard way to measure the viscosity of engine oil, the Society of Automotive Engineers (SAE) developed a viscosity scale. The scale ranges from 0W, which is the thinnest type of oil, to a rating of 60 , which is the thickest oil.
What oil is best for high mileage?
- Valvoline High Mileage with MaxLife Technology Synthetic Blend Motor Oil. ...
- Pennzoil High Mileage Motor Oil. ...
- Slick 50 Recharged High Mileage Treatment. ...
- Gumout Fuel System Cleaner. ...
- Royal Purple High Mileage Synthetic. ...
- Techron Fuel Cleaner. ...
- Mobil Super High Mileage Oil.
Is 10W 40 OK for my car?
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 .
Can I use 5w40 instead of 5W-30?
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.
Is 5W 40 thicker than 5W-30?
Although both have the same viscosity grade in cold weather, 5W-40 is thicker than 5W-30 at warmer temperatures . It's also worth pointing out that: 5W-40 is the suggested oil for most diesel applications. Rarely (if ever) do vehicle manufacturers recommend putting 5W-40 oil in a gas-powered engine.
What vehicle uses 10W-40 oil?
This oil weight is commonly used in diesel engines or in a smaller motorcycle engine too . The 10W-40 oil viscosity also often serves as an alternative for older engines with burning or oil leaking issues.
How long does 10W-40 oil last?
Unopened Motor Oil
This will give you about 2-5 years before unused oil becomes unfit for consumption. Unless you need to use the oil, do not open the oil bottle at all. Keep in mind, though, fresh oil will degrade over time and lose its oil additives properties, impacting the oil life.
Is 10W-40 fully synthetic?
Semi-synthetic oils such as 10W40 have long been the standard. Their base is refined crude oil, which is then blended with additives.
Will thinner oil damage your engine?
It's best to use the oil viscosity recommended in the owner's manual, but using a slightly thinner or thicker oil (lighter or heavier viscosity) generally poses no long-term harm .
Is 5w30 good for high mileage?
Pennzoil High Mileage SAE 5W-30 Motor Oil is engineered for cars that have accumulated more than 75,000 miles , particularly those that are experiencing oil leaks and oil burn off. Engines with higher mileage tend to experience more wear than new engines.
Can I use 10W 30 instead of 5w30?
According to API motor oil guide [1], If you are using 10W–30, you can safely switch to 5W–30 (in car engines). 5W–30 is thinner than 10W–30 when cold. (you must follow the manufacturer's recommendations). However, switching from 5W–30 to economical 10W–30 is not always recommended.
Is 10W 40 oil good?
10W-40 motor oil's greater tolerance for hotter temperatures means that it's better at resisting thermal breakdown and reducing deposit formation. So, if you drive in a warm climate — especially more than 32°C (90°F) — or have an engine that runs hotter than others, 10W-40 oil viscosity is a good option .
Is 5W or 10W better for winter?
The lower the W number, the better the oil will perform in colder temperatures. Typically, a 5W oil is recommended for winter use , but synthetic oils can be formulated to flow even more easily when cold.
Is 5W or 10W better for summer?
While some car manufacturers still advocate the use of 10W-30 (or even 10W-40) as an appropriate engine oil option for summer use, it is completely unnecessary . Today's 5W-30 motor oils provide consistent protection at both extremes of the temperature spectrum.
What happens if I use 20w50 instead of 5W-30?
Can I use 10w30 instead of 5W-30 Reddit?
This is not true . The viscosity does not change the physical size of oil. Viscosity is resistance to flow, nothing more.
What happens if you put the wrong oil in your car?
Using the wrong fluid can cause poor lubrication, overheating, and possibly transmission failure . A mechanic might not be able to reverse the damage, even by flushing the transmission. Mistakenly adding motor oil or brake fluid can also destroy your transmission.
Which engine oil is best for hot weather?
Will thicker oil increase oil pressure?
Can I use 10W 30 instead of 5W-30?
According to API motor oil guide [1], If you are using 10W–30, you can safely switch to 5W–30 (in car engines). 5W–30 is thinner than 10W–30 when cold. (you must follow the manufacturer's recommendations). However, switching from 5W–30 to economical 10W–30 is not always recommended.
What is the difference between 5W and 10W oil?
A 10W or 5W is the index for how easily the oil flows in winter (hence the W). A 10W oil thickens more than a 5W . The other number indicates the oil's resistance to thinning at high temperatures.
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.
