That's interesting. Over here, we see only 91 octane, with only a few stations carrying anything higher. Esso has a 92 octane instead of 91, and PetroCan and Chevron both sell 91 in addition to 94 octane.rudeney - 3/16/2005 2:54 PM
I have not seen any stations selling 91 octane in a long time.
LOL, touche. Not so much of a Scotch drinker myself though, but good point I figured I save around $100 per year, which I can spend on something more useful, like a good bottle of Scotch .
Not trying to get the last word, but to answer your question, I have found that the fuel gauge on my ML is extremely accurate. In fact, I have found the fuel gauges on all the European vehicles I have owned to be this way in contrast to American and Japanese vehicles. Anyhow, I generally do my 89-octane top-off when the gauge is just above half a tank and I can generally add just over 8 gallons in.Maybe this can be the last word on this subject. I never know just exactly how much gas my ML will take. So, how do I know how much half a tank is?