Unlocking Engine Performance 5w30 vs 5w40 - The Game-Changing Guide

I would say W30 is noiser at higher speeds...like more than 120km/hr on NSHW. driving in SG at 90-100km/hr not much of a difference. The alphanumeric code associated with motor oils, such as 5W30 and 5W40, represents their viscosity grades. The first number (e.g., 5W) ... We work side-by-side with workshops to produce high quality engine oils, lubricants and chemicals for passenger cars and commercial vehicles. What is 5W-40 Engine Oil? The same as above, the cold temperature rating of this oil is -25°C. The difference between the two sits in the number ... 5w-40 is very thick in cold, which is bad for turbo apps. This is the reason for the evolution of 0w-30 and 0w-40 oils, however 5w-30 synth is ... A6 (C7 Platform) Discussion - 5W-30 or 5W-40 - Which one do you prefer? From my understanding, their both pretty much the same. Like 5W30, 5W40 is an oil with multiple grades. Because of the '5W', it has the same 'winter' viscosity. The '40', however, suggests that this ... 5w40 oil outperforms 5w30 oils at higher temperatures, being effective up to ambient temperatures of 50°C, as opposed to 30°C. New member ... 5w30 is more expensive than 5w40 and 5w30 has a lower viscosity than 5w40. Your choice will depend on the temperature where you ... The 5 is the same. The 40 is higher viscosity at operating temps, compared to 30. The engine was designed for 5w30.