Can you run 15W-40 instead of 10w30?

Because 10W-30 is thinner than 15W-40 oil, its film strength can be weaker and it can be more prone to oxidation. Therefore, high quality additives are needed to compensate for those weaknesses in order for a 10W-30 engine oil to protect as well and last as long as a 15W-40.

Can I mix 15W 40 with 10W 30?

you can mix the two without a problem, for Wisconsin, the 15w 40 would be a better oil in the summer and 10w 30 would be a better oil for the winter, if you drive the car in the winter! I have Rotella 15w40 weight oil in my LT-1 now and I just found a place that sells 10w30 which would be a better choice.

Which is better 10W 30 or 15W 40?

High quality 10W-30 oils can perform as well, and better than industry-standard 15W-40 oils. The stated viscosity of a HDEO does not represent an exact viscosity, but rather a viscosity within a range on the SAE viscosity scale.

What can I use instead of 10w30?

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.

Can I put 15w40 in my lawn mower?

When it comes to lawn mowers, 15w40 is not an oil that I would recommend using. Since you won't need to worry about extremely cold temperatures while mowing, the multi-grade benefits of 15w40 won't apply. Also, most 15w40 oil has higher levels of detergents which clean engine parts as the oil cycles through.

The importance of choosing the right engine oil quality and viscosity for your car or truck - VOTD

Is 15W40 good for gas engines?

Mobil Gas Engine Oil 15W-40 is a premium fleet engine oil specifically formulated to provide reliable protection for trucks and buses using Compressed Natural Gas (CNG) or Liquefied Natural Gas (LNG). Mobil Gas Engine Oil 15W-40 is formulated from high quality base stocks and a balanced additive system.

Can you mix SAE 30 with 15W40?

These two oils are completed mixable at any ratio.

What happens if you use 10W40 instead of 10w30?

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.

What happens if you put 5W 30 instead of 10W-30?

So both the oils 5W–30 and 10W–30 have exactly the same viscosity (SAE 30) when your engine is running, and will perform in the same way. However, the 10W–30 oil will be thicker (higher viscosity) than the 5W–30 when it is cool.

Should I use thicker oil in an older 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.

Can I use 15W-40 instead of 10W30 in diesel engines?

Lower viscosity is easier to pump and to shear. This is why many heavy-duty oils are moving from the traditional 15W-40 to 10W-30. If the engine is designed and manufactured to use a 10W-30, it can improve fuel economy and power over using a 15W-40.

What is 15W-40 oil used for?

ADVANTAGE 15W-40 HEAVY DUTY DIESEL ENGINE OIL can be used with complete success in over-the-road diesel trucks, off-highway diesel equipment, farm tractors, and passenger cars and light trucks with diesel, turbo-charged diesel engines, or gasoline engines and is backward compatible with previous API Oil Categories.

Can I use 15W50 instead of 10W30?

15w50 oil is an oil that is used under extreme conditions. It depends on the climb in the region you drive through. In a rather cold region I'd use the 10W30. In a warmer or even milder one, I'd use the 15W50.

What happens if you mix oil weights?

Can oils of different grades be mixed? The good news is that mixing different types of oil it will not harm your engine in any way in the short run. Most synthetic and semi-synthetic engine oils are based on regular oil and are compatible.

Is 15W40 oil synthetic?

Mobil Delvac™ Extreme 15W-40 is a synthetic, high-performance diesel engine oil that helps extend engine life while providing long drain capability for modern diesel engines operating in extreme conditions.

Can you use Rotella T6 15W40 in a gas engine?

Shell Rotella^® T6 Multi-Vehicle Full Synthetic engine oil performs extremely well in diesel and gasoline engines, meeting both API CK-4 and API-SN standards and allowing mixed fleets to consolidate lubricants.

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.

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 I use 10W-40 instead of 10W-30 in my motorcycle?

Motorcycle oil is not similar to car oil. But if your motorcycle uses 10W40 instead of 10W30, then you are good to go. You can continue using that oil for your motorcycle without a problem. The difference between 10W-30 and 5w20 motor oils is so small; you will never notice it.

Will the wrong oil damage my engine?

Cause damage to engine life

The wrong engine oil can cause engine damage because it does not properly lubricate its components. This will lead to metal-on-metal contact since the moving parts are not being lubricated. Friction quickly follows, causing engine parts to wear.

Which engine oil is best for hot weather?

The ideal motor oil for your car is one that can withstand the hottest temperatures in your region while still being able to flow when the weather is at its coldest. SAE 5W30 oil is suited to a broad range of temperatures, making it one of the most commonly used oils on the market.

What does 15W 40 stand for?

The first number 15W is the viscosity of the oil at cold temperature, and the second number 40 is the viscosity at 100 °C. The 15W40 designation means that the oil is a multigrade oil. It has the viscosity of 15W when cold and the viscosity of SAE 40 when hot. This means that one type of oil works in all temperatures.

Can you use diesel engine oil in a gas engine?

Diesel engine oils have a higher anti-wear level, where the catalytic converters in diesel systems are designed to cope with it, while the gasoline systems are not. And therefore, it is not recommended to use the diesel engine oil in your gas engine.

What's the difference between SAE 30 and SAE 40?

Both SAE 30 and SAE 40 are single-grade oils meaning they are only rated while hot, or in other words, near the temperature they will be inside of a warmed-up engine. So, SAE 30 is a median thickness oil and SAE 40 is a slightly thicker than average oil.