Hello all,
I have read many threads regarding the benefits of using super unleaded so I'm not asking that question again.
When refuelling yesterday I noticed on my S4 fuel flap it said std petrol 91 ron or super unleaded 95 ron.
In the UK I believe that Shell fuelsave unleaded is 95 ron. Does this mean that the car thinks its on super unleaded? I believe that using super 97 ron or greater will only see greater power and economy gains but if the car thinks 95 ron is super then it will be achieving it's factory quoted power outputs with 95.
I'm not sure what ron the other main suppliers quote for their std fuel but I have read that Shell is 95.
Thanks.
I have read many threads regarding the benefits of using super unleaded so I'm not asking that question again.
When refuelling yesterday I noticed on my S4 fuel flap it said std petrol 91 ron or super unleaded 95 ron.
In the UK I believe that Shell fuelsave unleaded is 95 ron. Does this mean that the car thinks its on super unleaded? I believe that using super 97 ron or greater will only see greater power and economy gains but if the car thinks 95 ron is super then it will be achieving it's factory quoted power outputs with 95.
I'm not sure what ron the other main suppliers quote for their std fuel but I have read that Shell is 95.
Thanks.