2007 BMW Z4 Owner's Manual - Page 28
2007 BMW Z4 Manual
Page 28 highlights
Refueling Refueling Note when refueling In contrast to the descriptions in the Owner's Manual for the BMW Z4, please take note of the following differences for your BMW Z4 M Roadster/Z4 M Coupe. Fuel tank capacity Approx. 14.5 US gallons/55 liters, including the reserve capacity of approx. 2.6 US gallons/ 10 liters. Do not drive until the tank is empty. Otherwise, the engine may not operate properly and damage could result.< Fuel specifications Do not fill the tank with leaded fuel, as this would cause permanent damage to the catalytic converter.< Required fuel Super Premium Gasoline/AKI 91 This gasoline is highly recommended. However, you may also use gasoline with less AKI. The minimum AKI Rating is 89. Do not fill the tank with any gasoline below the specified minimum fuel grade; otherwise engine damage could result.< 26 Online Edition for Part-No. 01 41 0 012 046 - © 04/06 BMW AG