FC on RON95 is not good as RON97 for Peugeot308 turbo

It seemed that AHW308 consumed 5~10% more RON95 fuel per 100km during previous 1500km Raya Trip than it took out of RON97 on earlier 2000km trip across Malayan Peninsular, but I forgot the traffic flows and the way I tekaned the accelerator pedal between the two trips were entirely different in fashion. So, I was WRONG to conclude that Peugeot 308Turbo consumes more fuel on RON95 than it does on RON97 .

Over the last weekend however, I had an opportunity to test similar car running on RON95 on similar route [as earlier trip on RON97] under almost similar controlled environment. They were daylight trips from BBBangi to JB and back covering a total distance of approximately 600km. In both situations the car ran on AUTOcruise most of the time within legal speed limits. The aircond was set to 21degC throughout the trip.

Surprisingly I found that the average fuel consumption for both trips which run on RON97 and RON95 were almost identical. The trip computer displays below was taken at the end of the trip run on RON95.

The average RON95 fuel consumption for the 586km trip was:
6.2lit./100km i.e 11.16sen per km [@RM1.80/liter] or, 16.1km/liter or 45.8mpg!
P1080406consumption
For the 586km trip the car consumed RM 65.40 or 36.33liter of RON95 i.e slightly over 5/8 but less than 3/4 tank of fuel. The remaining fuel is more than enough for another trip to JB!!!


Now it is proven TRUE that in term of energy content there is no different between RON95 and RON97! [Click HERE to see fuel consumption for similar car running on RON97]

Next test is to compare high-rev performance [0~100km/hr acceleration and sustainable top speed] between RON95 and RON97.

The best average fuel consumption by my308 on RON95 was 6.0liter/100km [16.7 km/liter or 10.8sen/km] when the car was running constantly at 92km/hr read by the speedo [or exactly 90km/hr on the GPS] on a trip along PLUS covering 291km on October 4th. 2009.
best ron95 consumption


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