Can I mix 5w30 and 5w40?

Just like mixing full synthetic with semi-synthetic oil – mixing different viscosity such as the 5w30 and 5w40 is not a bad idea, especially if you are running low on oil. However, doing so is not ideal if you want to reap the benefits of what the motor oil brand intends.

Can you top off old oil with new oil?

Adding new oil to old is perfectly okay and is an accepted practice for maintaining correct oil levels between oil change services. The oil added should be the oil type recommended by your manufacturer, and that’s important. Constantly adding oil however is not a substitute for changing the engine oil.

What happens if you mix engine oil?

Mixing different types can destabilize your motor oil, reducing its efficiency and affecting your engine’s performance. The smartest choice is to stick with the oil type and oil change intervals recommended by your car’s manufacturer and visit your local car care experts for affordable services.

What happens if I mix engine oil?

What happens if I put 5W-30 oil in my car instead of 5W20?

Your vehicle’s engine is built and tuned to run on a specific grade of oil. If you put in 5W-30 oil instead of 5W-20 when the latter is the grade suggested by your vehicle’s manufacturer, damage to internal engine parts can occur. Additionally, your engine may experience performance issues such as diminished fuel economy and horsepower.

What happens if you put regular oil in a special oil?

You may reduce or negate the properties of the additives. You could lose the benefits of the more expensive synthetic oil. So, adding regular oil to your special synthetic oil will mean you’ll need to get your oil changed sooner than you would have otherwise.

Can I top-up my engine oil with a different viscosity?

If you are in a pinch, you could certainly top-up your engine oil level with an oil from a different viscosity range. It may not be the end of the world, but we are not endorsing the practice of brewing your own custom motor oil formula for complete oil change intervals and especially not for racing purposes.

Is it bad to mix different brands of engine oil?

Mixing different brands of this particular oil is not essential bad and won’t affect your engine, but if you look at it very well, you will see mixing, it might knock your engine down. There are different brands of oil produced, and each is formulated differently by the manufacturer.