![]() The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". ![]() These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. To recap, a lower oil viscosity number indicates a thinner oil that will flow faster, while higher oil viscosity number indicates a thicker oil which often works better in extreme applications. High-mileage motor oils have additives that restore seals. Which is better high mileage or low viscosity oil? Find the Right Viscosity Oil for Your Vehicle With fuel-economy standards growing more strict, automakers are leaning toward low-viscosity lubricants to help them meet the requirements. Lower-viscosity oils reduce internal friction since they flow more easily than higher-viscosity oils, improving fuel economy. Why are low viscosity lubricants good for your car? Then, thickening agents were developed and multigrade oil became available. At that time, oils had to be changed seasonally using a higher oil viscosity in the summer and a lower viscosity in the winter. Originally, oils were only produced in a single grade, such as SAE 30. During summer and in hotter regions, your engine will benefit more from oil with higher viscosity at 100 degrees Celsius. During winter and for cars used in cooler regions, your engine will benefit from using oil with low winter viscosity. Oil with a 5W-30 grade thins out more quickly at high temperatures as compared to oils with a 5W-40 grade. Contrary to what some believe, adding synthetic oil to regular oil won’t harm the engine, but there’s also no benefit in doing so. If the manual says to use synthetic oil, do so. Using the wrong oil can lead to reduced lubrication and shorter engine life. The engine will eventually overheat if you ignore warning lights and manufacturer guidelines concerning oil changes. Overheating Engine If you don’t have enough oil or if the oil is contaminated, it can’t lubricate the engine’s moving parts and the cooling system can’t keep up. In the summer, you need a motor oil that will maintain just the right amount of thickness. The best motor oil for hot weather is a thicker grade oil to combat the thinning effects of the heat. Thicker oil in the winter would clog the pumps and fail to lubricate them properly. This can lead to increased engine wear under today’s demanding heat and high-stress engine performance conditions. What happens if I use 10w30 instead of 5w20?Īnswer: 5w20 oil has less film and shear strength than a 5w30, 10w30 or a 0w30 motor oil. ![]() Similarly the oil viscosity will be higher and oil thicker than specified during summers. If you use 10-w-40 instead of 5-w-30 specified by the manufacturer then the viscosity of 10-w-40 used by you will be higher and oil thicker than what is specified during winters. ![]() One must use the oil specified by the manufacturer. ![]() When the weather cools down, you can switch back to a lighter, thinner oil, which will help preserve gas mileage in the winter months.Ĭan I use 10w40 instead of 5w30 in summer? Should you run thicker oil in the summer?Įngines need a thicker oil in the summer months because of the summer heat and its effects on thinning the oil out. They reduce friction between the piston compression rings and the cylinder walls, minimizing metal-to-metal contact and prolonging the life of your engine components. Lower viscosity formulations flow faster and smoother through the oil pump, requiring less energy to transfer lubrication throughout the engine. What happens if you use lower viscosity oil?
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