Most Mercedes-Benz engines, except the high-performance ones in the AMG and SL/SLK models, are able to run on fuel with RON91 to RON95. However, for optimum performance, RON95 is recommended while use of RON92 will result in marginally reduced output
For the Cefiro 3.0, Murano, 350Z/370Z, RON97 is recommended for optimum performance. For older models such as the Sunny 130Y, Bluebird, Altima and AD Resort, RON95 can be used
Volvo engines can use RON91 to 98 RON unleaded petrol. Volvo Car Malaysia says that for best performance and lowest fuel consumption, RON98 (or closest RON) is recommended. For normal driving, RON95 is acceptable and knock sensors in the engines will adjust the engine timing to prevent damage if the RON is too low.