Another post that was locked got me to thinking. We will use 5W30 as the example. Factory or API/European certification not needed. Which oil of this viscosity represents the best measured numbers in a VOA? Most shear resistant, viscosity stable, great TBN....you get the picture. I am thinking something with a moderate dose of PAO/POE would stand out, but perhaps not. Price is no object. Remember 5W30 only, gas or diesel or airplane...whatever. Time to bring a little perspective to oils without hype. Feel free to shout out your favorite along with its test results.