Essential Comparison 5W30 vs. 5W40 - Choosing the Right Oil for Your Vehicle

5w40 is thicker/more viscous, and only when warm. So 5w40 is worse fuel economy etc. It's not a huge difference though. 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. You can continue to use 5w30 oil. You do not have to switch unless you are having excessive oil consumption (eg. 1L for every 3,000 KM). The ... A 30 oil will have slightly less drag than a 40 oil. The mechanics of the engine were designed to run with a 5w40 oil so that would be the best to use. ... or damage suffered as a result of using this product for applications other than specifically stated in the Product Information Sheet. If you need help or ... 5w30 Engine Oil · 5w40 Engine Oil · 10w40 Engine Oil · 20w50 Engine Oil · View More ... The Data User shall refrain from copying and disseminating the data or the ... 5W30 has a viscosity rating of 30 cP, which is thinner than the 40 cP viscosity rating of 5W40. While the two oils have different viscosities, ... In the case of this liquid Molly, it's 5 W 40. The 5 is viscosity at cold temperature, which is what the W means, and 40 is viscosity at warm ... 5W-30, 5W-40 Engine Oil Explained | Which Oil For Your Car | Best Engine Oil For Diesel Engine Cars 2024 | Best Engine Oil For Cars In India ... 5w30 has a lower viscosity of 5 and higher viscosity of 40. ... It is thicker is cold temperate and stays thicker engine heat. It is thicker in ...