oilman 0 Posted April 24, 2008 At which temperature does an oil flow better? There is no temperature where oil suddenly starts to flow better. A 10W/40 for example will flow between -25C and 100C or more, but there is some difference in the rate of flow! (True viscosity at -25C is about 7000 Centistoke(cSt) units, dropping to 14 at 100C. Quote Share this post Link to post Share on other sites
