Unveiling the Secrets 5W30 vs. 5W40 - A Comprehensive Guide to Motor Oil Grades

Based on the viscosity grade, you can notice that 5w30 oil will be more liquid while the 5w40 is more viscous and thicker so that is why 5w30 ... ... or in-store with free nationwide delivery over £ ... COMMA - XTECH 5W30 - 1L. Part: COMXTC1L. check circle. In Stock. Map. 0w40 vs 5w40. Learn the key differences between 0W40 and 5W40 engine oil. Find out which oil viscosity grade is better for cold weather ... 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 ... ... that is optimum under a set of operating conditions. For your vehicle this might be 0w-20, or 5w-40, just fo... 5w40 505.01 motor oil. The 40wt is very important for camshaft life. The little fuel you'd save is far outweighed by the camshaft you will buy. 5w40 is thicker/more viscous, and only when warm. So 5w40 is worse fuel economy etc. It's not a huge difference though. 5W-40 is as thick as single grade 40 weight at 100°C, and will pump down to -30°C (at least right after oil change). Difference Between 5w30 and 5w40 · 5w30 has a viscosity ranging from 5 to 30Pa-Sec. · For 5w30, the range of kinematic viscosity is 9.3-12.5mm²/ ... Particularity of 5W40 Oils ... When hot, 5W40 engine oil is more concentrated than 5W30. It has a thicker oil film and better resistance, sealing ...