Is this total bs
 

I was doing some resaerch to see if anywhere in SLC, UT sold 93 Octane. I couldn't find anywhere but I did find a lot of people saying it's because we live in such a high altitude that 91 octane does the same thing. Does anyone know if there is any truth to this. Oh almost forgot SLC,Ut sits at 4400 feet above sea level.

supposedly, the higher the altitude, the less your car needs the high octane due to the engine retarding its timing to account for the lower amount of oxygen in the air. at least thats what i remember from the last time i looked it up. its not that high altitude somehow magically increases your octane ;)

with that said...at least you get 91 octane up there...im nearly at sea level here, and we still get 91 max. damn california and its strict emissions!

:confused:

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I live at 5200 feet and 91 octane works fine for me. I have never seen 93 octane available anywhere in AZ.

AZ

Yep, That is true.:hello:

yep, its true.

true

Yet here we have gas stations that carry 91 while others sell 93 for the same price.

we get 93 here in florida!

first thread ive seen that started with "is this bs" and ended up true

+ on the true

hawaii has 93 ^_^

UK has 99 :ughdance:

haha. and soooo cheap too:rolleyes: you guys pay more per litre then we pay per gallon

:icon18:

Thanks for every ones input. I totally thought this was bs

UK 99 = US 93
:p

I take it that belgian 98 = US 93?

Roughly yes, Europe and Australia use the RON scale where as US and Canada use the average of RON and MON (known as AKI). So because the MON content of your typical European premium is around 89-90 you average out to 93-94.

The one "petrol" that you do have over there that has a high MON rating is the BP Ultimate 102, which has a MON rating of 93 and a AKI rating of 97.

we are at 3300ft here i think and we have 93 at all stations and 94 at some stations.

weird. i thought that UK Gas, at a given octane level had a higher octane than US gas. like 93 in US would be less than 93 in UK. interesting. on top gear they will make fun of the gas in the us for being like watered down and low octane. 'that stuff they [USA] refer to as petrol'

Well we do water it down with ethanol. And because ethanol has a naturally high octane rating they can use lower octane petroleum and still make the average. Europe is just starting to adopt the ethanol trend, some countries now have E5 or E10 like the US has had for the last few years.

yuppers