Wait! Should have said Ďoil rebateí. Sorry!
I am really impressed with the efforts that go into producing oil and how we all need to get a good understanding of the importance in choosing what is right for our bikes and when we need to change the oil. I run T6 and trying to run at least 5000 before changing.
The following from...
Motorcycle Oil: What Difference Does it Make? - Motorcycle & Powersports News
The finished product that goes in a bike is amber or brownish in color, base oils are actually clear, like water. Their quality determines a number of key performance properties, including oxidative stability (the ability to resist chemical breakdown), heat resistance, viscosity retention (the ability to resist thinning) and pour point (fluidity at low temperatures). The goal in manufacturing base oils is a molecularly uniform, pure substance. Why? Because inconsistency and impurities limit performance. Additives in the final motor oil formulation offer specific performance features not provided by base oils, like the ability to resist corrosion that may form when bikes are in storage.
The base oils used in conventional oils are anything but uniform and pure. They are refined from crude oil pumped from within the earth, which is a poor lubricant in and of itself; itís a thick, messy, foul-smelling raw material teeming with molecules of different weights. Sulfur, paraffin (wax), nitrogen, oxygen and nickel are just some of the molecules in crude harmful to the lubricating process. Paraffin, for example, thickens as the temperature drops, making it more difficult to start your motorcycle on a cold morning and inhibiting the oilís ability to quickly flow to critical engine parts. Itís no coincidence the majority of engine wear occurs at start up. Impurities cause the oil to oxidize sooner ó in laymanís terms, break down ó requiring it to be changed. Thatís just one reason conventional oils reach the end of their useful service lives sooner than synthetics.