You should use the 94 in the FiST and be glad you can get it.Here in Toronto you can get 83oc/$1.27 a litre up to 94oc/$1.47 a litre.. Which is better?
You could use the 83 but you will see better performance with the 94.Does it affect the performance/driving of the car? My last fiesta SE I used just reg gas.
Or you could mix the two.I can rotate the usage of 83 and 94??
That is not completely correct.Higher octane less miles per gallon?