April 27, 2009

Is Peugeot 308 Auto with THP Power Plant a Frugal Car?

I've just returned home from 801.3km weekend trip [KL-Kelantan-KL] in myPeugeot 308 with a 60-liter fuel tank of RON97 w/o refuelling. Fuel/trip computer snapshots and manually calculated figures are available for comparison on the fuel consumptions.
P1030400-400

1. From on-board Fuel/Trip Computer
The best average fuel consumption was 6.4liter/100km [16km/liter or 45mpg] on 307km* route from Machang to Raub.
[16km/liter or 45mpg]

[*Note: On AutoCruise without exceeding speed limits >5kph - AutoCruiser was set @ 75, 85 and 95kph wherever applicable respectively]

After Raub the traffic was no longger smooth flowing - there were 'convoys' of express buses, trailers and cars all the way prevented me from using AutoCruise. At times the speed was reduced to 50kph or less when trailing slow vehicles. It was Monday 27th around 4:00am~6:00am when I was driving from Raub to KL.

There are more accends than decends from KL to Kelantan hence more fuel consumption [6.7liter/100km] than going back to KL from Kelantan.
The average fuel consumption for the 800km drive was 6.6l/100km or thereabout as shown on the MFD .
[15.2km/liter or 43.3mpg]

Earlier, I left KL for Kelantan on Friday 24th around 4:00am. The actual KL-Kelantan[@Machang] point-to-point distance was 383km. I drove some distance further up to make it cukup2 400km [for 800km return trip]. See... after arriving @Machang, still got remaining fuel for another 500km as shown on the CDC - more than enough to burn along the way back home.


2. By Manual Calculation:
The amount I paid for the fuel used after returning from 801.3km trip was RM97.05 [i.e 53.9liter].

Hence, by calculation the average fuel consumption was 6.7liter/100km [14.9km/liter or 42.7mpg] on 801km

Since the amount of fuel used for the 800km drive was about 54liter, the expected range per full tank [60liter] will be 888.888km! While on-board fuel/trip computer tells 901.3km [801.3+100km]. "801.3km" is the distance travelled since the last refueling and "100km" is the remaining kilometer to go before 'EMPTY' as displayed on the MFD and CDC based upon the average fuel consumption for the last few kilometers sampling.

Only now, I can appreciate and enjoy steady driving on AutoCruise - not just driving w/o pumping the accelerator pedal, but most of the time I don't even need to touch it.


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6 comments:

Alan Wong said...

WAH... Excellent!! Looks like the 308 THP 140/175 can easily hit 800+ km on a single tank when we go outstation. Never before achieved on any of my previous cars before. Thats excellent!!

A said...

Is Peugeot ever going to market again in the US?

Wan A. Hadi (one.D) said...

I think we can try for 900km economy drive on one full tank of fuel, but must keep one spare gallon just in case the fuel tank before reaching fuel pump...

I tell u what, just after I refilled the tank to the brim, the onboard computer calculated I could travel another 1000km based upon my last average fuel consumption.... believe it or not!

Wan A. Hadi (one.D) said...

correction:

I think we can try for 900km economy drive on one full tank of fuel, but must keep one spare gallon of fuel just in case the fuel tank EMPTY before reaching the fuel pump...

Unknown said...

Fanstastic fc. You travelled alone or full load ?

Wan A. Hadi (one.D) said...

Three occupants + 80kg of loads in boot.
Tyre pressure: 2.5bar [approx 35psi]

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