This is more of a curiosity.
Over here we have standards /regulation for RON rating: regular: 95RON and super 97/98 RON.
95 equates to US 91 (ROM/AKI??) and 97/98 to 93.
I do not understand why the standard for super is 97/98 and not one or the other!
when it comes to regular (also called premium) all retailers label their product as 95 but..
When it comes to super, ignoring the sexy names they like to use the RON can varry between 97 & 99 (there was a time BP sold a RON of 102!!). Currently Shell & Esso label theirs as 99RON.
So do they all buy the same base stock (97/98) and then put additives & octane booster to pump it up to 99 or they use a higher RON base stock.
They all claim they use additives in ther super unleaded for cleaning, lubrication etc but no mention of octane boosting.
I have been without luck getting any clarity on this for the retailers. MAybe a member with deeper knowledge / info can shine a light on this
Over here we have standards /regulation for RON rating: regular: 95RON and super 97/98 RON.
95 equates to US 91 (ROM/AKI??) and 97/98 to 93.
I do not understand why the standard for super is 97/98 and not one or the other!
when it comes to regular (also called premium) all retailers label their product as 95 but..
When it comes to super, ignoring the sexy names they like to use the RON can varry between 97 & 99 (there was a time BP sold a RON of 102!!). Currently Shell & Esso label theirs as 99RON.
So do they all buy the same base stock (97/98) and then put additives & octane booster to pump it up to 99 or they use a higher RON base stock.
They all claim they use additives in ther super unleaded for cleaning, lubrication etc but no mention of octane boosting.
I have been without luck getting any clarity on this for the retailers. MAybe a member with deeper knowledge / info can shine a light on this