2012 Prius fuel economy - lack of

[Fairy Princess]

Just wondering if anyone else has poor fuel economy on their 2012 Prius.

I bought the car 3 months ago (11 months old) and have done about 6000km with both city and highway driving and have average 7.8L/10km for the distance. I found this a surprise as the other Prius (2006) averages 4.6 around town.

The local dealers response was

"1. check your tyres,

2. use premium,

3. keep track and come and see us".

My response

"1. original tyres kept inflated correctly (hubby says I could put BETTER tyres on),

2. have tried premium petrol while on holidays ie highway driving and made no difference and

3. I had kept track otherwise how could I tell them the fuel economy."

I have had no response from email sent to Toyota Australia.

It is not my driving as hubby and I swapped cars for 3 weeks and noticed no significant difference.

The only other difference between the two cars (apart from age) is I have an I-Tech and his is the standard model.

[Fairy Princess]

1 year on and economy now averaging 5.8. Hubby now down to 4.3 most tanks after replacing the tyres.

Looks like I need to replace the tyres at some stage, not what I expect on the top of the range car.

[07Prodigy]

Oh, I thought it would have great fuel economy being a Prius, my Aurion gets down to 6.6/100km so roughly a litre is the difference of a 3.5 V6 and a Prius.

Shane because I was thinking of one.