The 2014 Audi A8 runs on premium unleaded (required).
The 2014 Audi S8 runs on premium unleaded (required).
The 2014 Audi S7 runs on premium unleaded (required).
The 2014 Audi A5 runs on premium unleaded (required).
The 2014 Audi A6 runs on premium unleaded (required).
The 2014 Audi Allroad runs on premium unleaded (recommended).
The 2014 Audi S6 runs on premium unleaded (required).
The 2014 Audi A4 runs on premium unleaded (required).
The 2014 Audi S5 runs on premium unleaded (required).
The 2014 Audi SQ5 runs on premium unleaded (required).
The 2014 Audi Q7 runs on premium unleaded (required).
The 2014 Audi Q5 runs on premium unleaded (required).