The 2010 Audi A8 runs on premium unleaded (recommended).
The 2010 Audi A5 runs on premium unleaded (recommended).
The 2010 Audi Q7 runs on premium unleaded (recommended).
The 2010 Audi S5 runs on premium unleaded (recommended).
The 2010 Audi S6 runs on premium unleaded (recommended).
The 2010 Audi S4 runs on premium unleaded (recommended).
The 2010 Audi R8 runs on premium unleaded (required).
The 2010 Audi A3 runs on premium unleaded (recommended).
The 2010 Audi A4 runs on premium unleaded (recommended).
The 2010 Audi Q5 runs on premium unleaded (required).
The 2010 Audi TT runs on premium unleaded (recommended).
The 2005 Audi A6 runs on regular unleaded.