are all premium fuels the same??

[JimX]

It's good to see that I wasn't the deluded one for a change

[Sydneykid]

This is like Groundhog Day I feel like I keep repeating myself over and over :headspin: , there are at least 3 threads on this subject going at once. So here is one I posted over there ....

Haven't you guys ever heard of Refinery Sharing? There is not one refinery for every brand in every city, so the petrol companies share.

You really need to check out your local supplies. Just because it says "Shell" on the servo doesn't mean that all the petrol sold there came from a Shell refinery. In Qld, WA and SA, Shell don't have 98 octane enabled refineries, so my understanding is they buy it from BP. Being Kwinana in WA and Bulwer Island in Qld. In NSW and Vic it is the reverse, the refinery at Clyde produces something like 25% of Australia's total petrol and the Geelong refinery produces about 50% of Victoria's petrol.

Mobil have 2 refineries in Australia, at Altona in Vic and Adelaide in SA. Only Altona is 98 ron enabled and it produces ~13% of Australia's fuel. In comparison Adelaide is a small refinery, doesn't have the technology to produce 98 ron and is currently not operational.

So my understanding is;

In Qld, WA and SA all Optimax, Ultimate and Synergy is refined by BP

In NSW and Vic all Optimax and Ultimate is refined by Shell

In NSW Synergy 8000 is refined by Shell

In Vic Synergy 8000 is refined by Mobil

As for Caltex/Ampol, the company owns and operates two fuel refineries, one at Kurnell in Sydney and the other at Lytton in Brisbane. Neither of them are 98 ron enabled. So I will leave Vortex out of further discussion.

Bottom line, I don't think you can say that Optimax is this and Ultimate is that and Synergy is something else, it really depends on from where it is sourced.

I have told this to a number of people and some doubt it and quote all sorts of reasons why it can't be so. My answer is go to.......

http://www.bp.com.au/refineries/refineries...es.asp?menuid=d

and read up on Refinery Sharing.

Hope that helps

[someonestolecc]

So... does that mean the optimax/ultimate i use in NSW is building up acid in my engine when i drive my car 2km to the bus stop (and back) everyday?