I had a chance to drive insight for 5 days since Wednesday as my colleague went to oversea till today Sunday.
The odo start @ 403km. Using trip B as the gauge for each day used. I reset trip B everyday before start journey in morning.
I managed to clock about 480km distance throughout the whole 5 days.
On Wednesday, I was able to get 23.1KM/L.
The journey is from Bukit Jalil -> Cheras -> Kelana Jaya -> Cheras -> Bukit Jalil again.
Morning had a mild jam but at least able to move 20km/h n above. Evening jam was mild as well usually at the Tasik Selatan stretch and the Stadium road heading to TPM.
On Thursday, I only about to get 21.1KM/L
Heavy jam starting at the Endah Parade till Tasik Selatan and heavy as well @ the Stadium.
On Friday, I only manage to 19.5KM/L
Evening jam starts at Sunway bridge till Sunway toll, from Endah Parade all the way to Tasik Selatan and finally jam from Tesco Midah till Pandan Perdana. As usual Friday evening jam is very bad.
On Saturday, didn't bother to record down.
On Sunday, I was able to clock average 25.2KM/L ...
I travel from Bukit Jalil to KLIA to pick up my friend. Then head back to my friend's house. total journey is about 119KM.
Throughout the journey I travel max at 85KM/H using cruise control using Dengkil road.
Above stats is based on the Insight FC calculation, didn't do manual calculation.
Here is my observation on getting best mileage
1. Full electric motor powered cruising is only available at speed 20km/h to 60km/h on flat road. I use it whenever I can but not recommend for long journey as it is very difficult to hold the leg steady all the time.
2. Cruise control is should be used at 70km/h and above, my leg cant get better than the computer.
3. Had to drive like a nanny to get maximum mileage...

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4. On flat road the best mileage speed is at 75~85km/h using cruise control @ 26~27KM/L.
Anything above mileage is reduced, example @ 90km/h is 22~23KM/L.
Overall mileage, I think it is at 20KM/L. Heavy traffic really reduce the mileage significantly.
I kinda slightly disappointed, I expected more mileage from the Insight but according to InsightCentral mileage will increase about 2~3km/l after engine break-in and using better synthetic oil.
This post has been edited by adamking: Apr 3 2011, 08:38 PM