Re: Petrol Octane - Was: Considering a BMW - A Few Questions
- From: "Dori A Schmetterling" <ng@xxxxxxxxxxxx>
- Date: Tue, 20 Dec 2005 23:20:54 -0000
Yes, and the old UK 4-star leaded was 98 octane, IIRC, not 99-100.
Actually, Shell does 98 but some (e..g Total, BP?) offer 97...
For direct contact replace nospam with schmetterling
"Tom K." <tkorth1@xxxxxxxxxxxxxxxxxxx> wrote in message
> "Dodgy" <Dodgy@xxxxxxxxxxxxxxxxxxxxx> wrote in message
>> Was just reading the "Considering a BMW - A Few Questions" and I was
>> curious after seeing a few of the replies.
>> Over here in the UK you've got a choice of 2 types of unleaded "gas".
>> IIRC you've got bog standard unleaded at 95 octane, and super (aka
>> expensive) unleaded at 98.
>> The old 4 star leaded was about 99-100.
>> Yet I see you guys in the USA talking about 92 Octane and below, which
>> has come as a shock because as far as I can remember that was what we
>> used to call 2 star and would only run lawn mowers on!
>> Is that quality of fuel that common?
> Different measurement standards:
> UK 98 RON = U.S. 93 Pump octane (Premium)
> UK 95 RON = U.S. 89~90 Pump octane (Mid-grade)
> U.S. "Regular" is 87 Pump octane
> BMW specifies 91 octane in the U.S., approximately equivalent to 96 octane
> in your neck of the woods.
> Complicating matters is altitude. In higher altitude areas in the western
> U.S., regular gas can be 85 octane with mid-grade at 88 and premium at
>> I remember hearing some story as to why the E36 TD and TDS models from
>> the 90's didn't go to the states, and that was the diesel quality was
>> so bad they wouldn't run properly... At the time I just thought, Nah,
>> gas is so cheap over there they don't feel the need for a diesel car,
>> but now I'm starting to wonder!
> Right now, diesel is 20~25% more expensive than mid-grade gas in the U.S.
> Hope this clears things up for you.
> Tom K.
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