+1 for another case of BITOG psychosis where members are absolutely sure what they see or hear must be due to their choice of oil. What little research I've seen suggests a maximum difference of 1% when going down a single grade and so for the cars I drive that means a maximum increase of 0.15mpg, 0.20mpg, and a whopping 0.32mpg which statistically could also be explained by a 8.96mph headwind, a family member being in the car a little more often than normal, my son asks me if I can drive Ethan and Chris home from practice when I usually don't, refilling the gas tank at half full vs 1/4 full, temperature, weather, was I running late one day and I was a little more aggressive with the throttle, slight deviations in my route or routine, differences in traffic patterns, etc, etc, etc, etc.
BITOG is a fun place to discuss a whole lot of things with some very thoughtful people but many here are pisspoor scientists and statisticians who want to ascribe certain observations to oil that they just have no right ascribing under their chosen testing methods - n=1 butt dynos, the color of the oil, the smell of the oil, the sound of the engine, 1% mpg differences - none of which has ANY statistical significance and can just as easily be explained by a million other variables besides oil - as has been said there's just too much noise in these scenarios.
BITOG is a fun place to discuss a whole lot of things with some very thoughtful people but many here are pisspoor scientists and statisticians who want to ascribe certain observations to oil that they just have no right ascribing under their chosen testing methods - n=1 butt dynos, the color of the oil, the smell of the oil, the sound of the engine, 1% mpg differences - none of which has ANY statistical significance and can just as easily be explained by a million other variables besides oil - as has been said there's just too much noise in these scenarios.
Last edited: