I was curious about the octane rating of Japanese gas so I went to a couple gas stations to ask.

Almost all gas stations are full service in Japan so when the attendent filled up our friend's　car we asked, but to my suprise he didn't know what we were talking about.

Well later on we found someone who was in the know..

After converting the liters to gallons and the yen to dollars we found that for $4.60　you can buy 100+ octane at the pump.

Not bad...

Jason

I'm not sure if there octane rating is the same as the USA. If memory serves me, the USA calculation is unique to us. So Japan may have 100 unleaded, but how they get that rating isn't the same equation.

later,
Curt

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Curt is spot on.

There octane rating, like the uk's, is different from ours. Something about motor octane, and chemical octane. I used to know, but have forgotten now. THe difference being that they use just one method, where we use both, and average the results. I believe that it works out to about 95 octane, our way.

Also, if you shop in the right places, you can get a 55 gallon drum of 100 octane unleaded for about 5ish bucks a gallon. but then you have to buy 55 gallons upfront...

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Japan only uses either RON (Research Octane Number) or MON (Motor Octane Number). I can't remember which anymore.

The US uses (RON + MON) / 2. Since US stations only give a basic guarantee of the minimum average number and the RON and MON can vary from batch to batch it is not a good comparison.

There is a station near Crivitz on USH 41 that used to have "108 Turbo Unleaded". It was most likely for boats on the flowage. My father-in-law had a trailer in Mountain, WI near the Nicolet water plant and I would stop at this gas station at least once a trip.

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Also, something that is rarely mentioned with pump gas is quality.

are you sure your getting 94 octane, or 100 octane, or whatever. all it takes is a hung over semi driver. or the wrong additives put in at the distribution center. Not to mention the contaminants that are sitting at the bottom of an underground holding tank.

With a barrel of race gas you know exactly what you are getting, and that it will be contaminent free. the only screw up you can really have is a mislabeled barrel, or a miss delivered barrel, but you can check the tags on the second one.

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hmm interesting.

For future reference, where are the right places to buy high octane gas?

Jason