Deciphering the Difference 5w30 vs 5w40 - Which Oil Reigns Supreme?

0w40 vs 5w40. Learn the key differences between 0W40 and 5W40 engine oil. Find out which oil viscosity grade is better for cold weather ... Dondurucu soğukta -21℃' de motor yağının viskozitesi .Akışkanlık testi yapıldı.. Motor yağı testi.Bende merakımı giderdim. Wondering if you can use 5W30 and 5W40 oils together? Watch this video to learn whether mixing these two oil grades is safe for your engine. Valvoline Engine Oil - 5W30, 5W40, 10W40 - Autos (37) - Nairaland ... Disclaimer: Every Nairaland member is solely responsible for anything that he/she posts or ... 5W-40 oil stays thicker at high temperatures than 5W-30. If you live in a place with a particularly hot climate (Arizona, for example) using 5W- ... We work side-by-side with workshops to produce high quality engine oils, lubricants and chemicals for passenger cars and commercial vehicles. I was told that those of us who have smoking turbos and are using 5w30 Synthetic need to switch to 5w40 synthetic based on a bulletin thats ... 5w30w is just a better oil runs especially for better fuel consumption... only time you'd jump to 5w40 is when the car is getting older and high ... I believe 5W-40 would actually be better! It might increase fuel consumption slightly, but I don't see any other issues with using it. Quality engine oil formulated for your vehicle at Repco. Your local Repco stocks a 5w30 or any other grade of engine oil from Castrol, Penrite, ...