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!

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.

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RON95 RON97 or X Power

Peugeot enthusiasts asked my choice of fuel for myPeugeot 308 and whether Im using V-Power.
I do not have any credible proof that V-Power actually works wonder on normal cars that we drive daily. I found a website/forum mentions that Shell V-Power conforms to RON97 or better...while other website says Shell V-Power is actually RON-95 fuel with certain additives!

According to the company website V-Power is a unique formulation that was developed as a Formula-1 technical partner to a well known team. It says V-Power is a totally redesigned petrol - not just one that’s been enhanced with additives.

The report added that with the help of the team and a multiple F1 World Champion, theyd proved V-Power’s supreme performance on the race-track and was surprised at the marginal difference in performance [Milli-seconds time difference is significant in F1 lap timings]

After some literature researches, I found no further technical explanation describing the advantage of V-Power for normal cars though.

As I said earlier, probably V-power has a few milli-seconds advantage lap time over conventional fuel- but insignificant for normal cars which can tolerate seconds if not minutes to arrive at destinations. And remember that F1 engines run at extreme temperatures and rev-up around 20,000rpm! I doubt most normal road running cars are hot enough to burn V-power fuel efficiently.

One can identify whether V-Power or hi-RON fuel is suitable for the car by just looking at the tail pipes. If excessive black soot present then the fuel used might be too high octane or the car had been running cold. On the other hand, if the engine knocks it means higher octane [RON] is required.
For time being myPeugeot 308 only use RON-97 and will be using RON-95 for daily driving when the later is available. Nevertheless RON-97 still be used on long distance high-speed, hi-rev spirited driving. Read RON 95 vs RON97.


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FLOATED PRICE OF RON 97 AND INTRODUCTION OF RON 95 PETROL IN MALAYSIA

THE price of premium grade petrol RON 97 will be floated according to international oil prices from September 2009. It is understood that oil companies had briefed their retailers that there would also be changes to grades of fuel sold at pumps.

Several retailers said the “regular” grade RON 92 fuel would be phased out and a new grade, RON 95, would be introduced, in addition to RON 97. The retailers said there would be a subsidy on the price of RON 95 fuel used by a majority of cars in Malaysia. Today RON-95 is available at selected Petronas stations in Klang Valley selling at RM1.75/liter.
Diesel would also be upgraded to European standards, most probably the Euro 2, allowing the introduction of more vehicle models with advanced diesel engines in Malaysia, they added. While it remains below the Euro 4M class of diesel fuel, the Euro 2 diesel has significantly lower sulphur content.

Petronas is also expected to lead the way in selling biodiesel fuel. The other oil companies are expected to follow later.

Malaysia spent some RM40.5 billion on fuel subsidies from 2005 to last year. The government has been working on a formula to reduce the amount of government subsidy on petrol while keeping negative impact from the swaying international crude oil prices to the minimum. The retailers said it was also possible that taxes imposed on the premium grade fuel would be used to subsidise the RON 95 price.

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So, what’s your choice of fuel for yourPeugeot 308, and why?
Share your comment please.

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