Petrol for Peugeot 308

[xrocker2002]

Which is the suited petrol for Peugeot 308 turbo 2009 model? 95 octane or 98 octane?? In the fuel door it has shown Ron 95 and Ron 97..

[GiveMeABreak]

Your 308 is designed for: unleaded petrol of 95 A/B/E/E+

[xantia_v6]

If you drive the car with enthusiasm or do much hill work, I would advise filling with 98 RON, as the ECU struggles to keep the timing correct on 95, and you will frequently get knocking and "super-knock" when you press the throttle hard and the turbo kicks in.

[xrocker2002]

recently, feeling some knocks during accelerator pedal pressing?? but not during slow running.

[xantia_v6]

These direct injection engines do suffer from carbon build-up in the inlet valves, which eventually causes uneven filling of the cylinders and knocking on some cylinders. The first sign of that is usually the regular occurrence of the superknock fault code.

Uneven acceleration and occasional over-boost fault codes can be caused by a blockage in the little filter that is connected to the boost control valve.