What happens to the engine if the wrong oil viscosity is used?

If your motor oil’s viscosity is low, it can break down in extreme conditions, failing to lubricate your engine effectively. This creates excess heat and friction which reveals itself in a burned smell coming from the engine. With time and use, the damage will increase and engine parts will wear out prematurely.

What will happen if I put the wrong oil in my 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.

Will 10w40 hurt a 5W-30 engine?

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 mix 5w30 oil with 10W30?

Yes, if topping up. If your oil must be topped up, then you are burning oil already, so the difference won’t cause more damage than is already there. 5W30 and 10W30 are essentially the same at operating temperature. It is only for cold weather starting that the performance will be different.

Is 10W30 good for high mileage?

Mobil Clean High Mileage 10W-30 is designed for vehicles with more than 75,000 miles. Its advanced formulation helps protect seals and prolong engine life. These oils protect against sludge and engine rust and corrosion under high and low-temperature operating conditions.

What happens if I use 10w30 instead of 5w20?

Originally Answered: Can I put 10w30 instead of 5w20? You can, but you will get worse mileage, and in most cases shorten the life of your engine, as it will take longer to pump up pressure for your bearings and lifters, and won’t spray your lower cylinders for an extra second or so on each cold start.

Can I use 10W-40 instead of 10w30?

Similarly, SAE 10W-40 motor oil performs well in cold weather conditions. It has the same low-temperature limits as the 10W-30 but is better in higher temperatures. Either 10W30 or 10W40 for summer use is fine; however, 10W-40 motor oil will better protect your engine.

Can wrong oil cause knocking?

Engine knocking sound may be noticeable after/following the completion of an oil change due to several reasons, like 1) Loose/defective fitting of oil drain plug 2) Low oil level 3)Loose oil filter and 4) Faulty oil filter check valve. It is better to Check for Drain Plug and Oil Filter Tightness.

Does 10W30 hurt 5w30 engine?

Most oils will mix perfectly, provided they have a similar synthetic. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. Mixing the viscosity of oils will not have any effect on the engine. 5w30 and 10w30 engine oils have close viscosity, and thus there is no harm in mixing them.

Can you put 10W40 in a 10W30 engine?

The basic fact that “40” is greater than “30” tells you that. If you were to put 10W40 in an engine designed for 10W30, the “thicker” oil would lead to friction in the engine and an increased load on the oil pump.

Can I use 10W30 instead of 5w20?