there are people who feel rich and can pump the Premium stuff. Likewise there are people here who feel there is no need to pump high grade stuff when we are driving an ordinary Magna not a WRX or something that needs high grade fuel.

Well for my 4 cyl it uses just as much and make no difference whether I pump the better grade or not. I felt I am paying more just to get the extra kms. I personally dont feel much difference.

Best of all, I started to drive a Lancer and it saves me $30.00 of fuel compared to the magna.

On the note, my boss drove a BMW 530 and he pumps 91RON as well, and that was what BMW recommended anyway.