Interesting.

So, how many people who have luxury cars are really abiding by the rules and buying premium gas religiously?

How many people do not care, since they lease their cars and won't have to deal with any "troubles" in 3 years?

What is the key difference b/w the two, so long as prices continue to rise and both can and will move your car from point A to point B?

I can see why a diesel charged car MUST have diesel, but I cannot say the same for luxury cars and premium gas. In the beginning, I take great care, but towards the end of a lease or after a year, I don't care so much.

Every visit to the gas station becomes a big Whatever in my mind.