Question: Does Thicker Oil Run Hotter?

Should I run thicker oil in the summer?

As a general rule, you’ll get the best protection in the summer when you use a slightly thicker grade of oil, such as a 10W30 instead of a 5W30.

Engines need a thicker oil in the summer months because of the summer heat and its effects on thinning the oil out..

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.

Is 20w50 thicker than 10w30?

SAE 20W50 is thicker than 10W30, so it’ll be longer to reach your engine parts during cold start, but the 20W50 could give your engine extra protectiom when it’s heat and being used for long time running.

What is the best oil for older engines?

Valvoline MaxLife 10WValvoline MaxLife 10W-40 stands out as the best oil for old motors. Valvoline comes with enhanced additives. The additives enable your motor to perform better. It comes with seal conditioners that prevent leaks.

Is 5w30 thicker than 10w30?

Is 10w30 thicker than 5w30? 10w30 is thicker then 5w30 because it has a higher viscosity in low temperatures. The engine oil will flow slower than 5w30 during the cold season. Thicker or higher viscosity metal oil has a better seal compared to low viscosity oil.

Is it OK to use 10w40 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 it OK to use 0w20 instead of 5w30?

0w-20 is simply a different viscosity of oil. It won’t be an advantage to your engine if your manufacturer suggests you use 5w-30 and may indeed be a detriment to your engine. 0w-20 may be a recommended oil for certain conditions for your engine and may not be recommended for your engine.

Does engine oil get thicker when hot?

Oil weight, or viscosity, refers to how thick or thin the oil is. … Your engine needs oil that is thin enough for cold starts, and thick enough when the engine is hot. Since oil gets thinner when heated, and thicker when cooled, most of us use what are called multi-grade, or multi-viscosity oils.

Does thicker oil affect performance?

Engine Oil DOES Affect Performance The lower the engine oil viscosity, the better. … Your engine has to work harder to move internal parts with thicker oil in the crankcase, sapping energy before you ever have a chance to use it.

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.

Which is thicker 5w40 or 10w40?

10w40 is thicker than 5w40, ONLY when cold. At operating temperature it is exactly the same. … Multi-viscosity oils with a lower W number are specifically designed to flow better, and thus lubricate better, at very low temperatures. There is no need to use a 5w-40 if the vehicle only requires 10w-40.

Which oil is thicker 10w40 or 20w50?

This refers to its fluidity or thickness. The “20W” indicates how quickly the engine will start when cold or in cold weather. … 20W50 motor oil is relatively viscous and thick. Most modern oils are 10W40 or even 5W40.