Quick Answer: Can You Put 10w 30 In A 5w 30 Engine?

For Example: 10W30 Low viscosities are good for cold temperatures (hence the “W” association) because the oil is thinner.

Thinner motor oil flows more easily and moves quickly.

When you start a cold engine up again, motor oil needs to travel to the top of the engine, where it trickles back down..

What type of oil is best for high mileage cars?

Valvoline High Mileage with MaxLife Technology. … Castrol Edge High Mileage. … Mobil 1 High Mileage. … AmazonBasics High Mileage Motor Oil. … Pennzoil High Mileage Motor Oil. … Lucas Oil High Mileage Oil Stabilizer. … Royal Purple HMX High Mileage Synthetic Motor Oil.

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.

What is the best oil additive for high mileage engines?

Best Oil Additives for Older EnginesMarvel MM13R Mystery Oil. You will be surprised to find out that Marvel MM13R Mystery Oil was used in WWII on airplanes and battleships. … Lucas LUC10130. … Slick 50 750002. … Rislone Engine Treatment. … Liqui Moly (20002) Cera Tec Friction Modifier. … Sea Foam SF-16 Motor Treatment.

Is 10w oil better than 5w?

Automakers usually specify a 5W-20 or 5W-30 oil for colder temperatures, with a 10W-30 oil as optional for higher ambient temperatures.

Is Thicker oil better for high mileage cars?

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.

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.

Is mixing 5w30 with 10w30 bad?

Mixing different oils will not improve the performance or efficiency of the engine in any way. The additives in synthetic oil may have limited or no effect at all when mixed with a regular engine oil. … 5w30 and 10w30 are both 30 weight oils and the exact same thickness in your engine when it is at operating temperature.

What does 10w 30 mean?

The 10W30 designation on engine oil means that the viscosity of the oil is rated at 10W when an engine is cold and 30 when the engine is hot. This is different than an oil labeled 5W30, which has a thinner viscosity when the engine is cold at 5W.

Which oil is better 5w 30 or 10w 30?

5w30 is a great multigrade oil for use in low starting temperatures as well as high summer temperatures. It is also more fuel efficient since it creates less drag on the bearings and moving engine parts. 10w30 is thicker and may provide better sealing capability for older engines.

What happens if you put the wrong motor oil in your 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.

What happens if I put 10w 30 instead of 5w 30?

Your oil is a little thicker when cold. No damage will happen. … The 5W and 10W defines how the oil will flow at 0 degrees. At operating temperature, there will be a completely insignificant difference between the two.

Which oil is thicker 5w30 or 10w40?

A 10w-40 motor oil is a thicker oil at startup than a 5w-30 motor oil. Therefore, 10w-40 oil clings to the engine’s moving parts more than the lower viscosity 5w-30 oil.

What does 5w 30 stand for?

multigrade oil5W-30 means that this is a multigrade oil. This is indicated by the two numbers separated by a “W” 5W – shows thickness/viscosity of the oil on a start-up – when you start the car (W – stands for Winter, this indicates oil performance under colder engine temperatures when the engine has not been running)

Is it OK to put 10w40 in a 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.

Is 10w 30 the same as 5w 30?

The main difference between 10w30 and 5w30 engine oil is their viscosity grades. 5w30 is less viscous than 10w30. 5w30 is also the thinner engine oil of the two at lower temperatures. … 10w30 provides sealing action in the engine due to the fact that it is thicker than 5w30 engine oil.