Software Update Improving Diesel Consumption?

[2912pwil]

Had my 08 2.2 Manual D4D serviced, Mr T, about 10 days ago.

Then went to Scotland, 1000+ mile round trip. Monitored reported fuel consumption (no change of driving habits, same route as many times before.. , usual cheapo diesel used..). The computer reported fuel consumption jumped up by another 4-5 mpg... No I haven't checked to see if the reported consumption is correct since the change (it did check out reasonably accurate last time I checked between fuel-tank refills...).

There wasn't any software update for Avensis or this engine distributed out my Mr T recently was there??

Can't think of any other rational explanation....

Regards to all..

[t-spiritpete]

Had my 08 2.2 Manual D4D serviced, Mr T, about 10 days ago.

Then went to Scotland, 1000+ mile round trip. Monitored reported fuel consumption (no change of driving habits, same route as many times before.. , usual cheapo diesel used..). The computer reported fuel consumption jumped up by another 4-5 mpg... No I haven't checked to see if the reported consumption is correct since the change (it did check out reasonably accurate last time I checked between fuel-tank refills...).

There wasn't any software update for Avensis or this engine distributed out my Mr T recently was there??

Can't think of any other rational explanation....

Regards to all..

Did they fit a new air filter, if the old one was dirty then fitting a new one would make a difference, apart from that the Partsking is the man to give you info on updates OR just ask the dealer what they did.

Edit:- When I had a software update around 3 years ago the mpg didn't seem to change and I am very happy with the MPG from mine, I got 63 mpg on a 200 mile round trip to Yorkshire recently .... 95% motorway driving. And yes the computer seems to be spot on compared to fill up to fill up method.

Regards Pete.

[Parts-King]

New oil, lower viscosity, better MPG?

Unless your came came up on the system as requiring a software update, it would not be done automatically

Kingo

[acetip]

They may have disconnected the Battery for some reason and this could have reset the ECU which could have helped.

Some owners do this on a reguler basis and find it helps. though as yet never tried it myself.

As the car runs ok i leave well alone but it is a petrol model.

[Heidfirst]

apart from the possibility of them having cleaned egr/replaced air filter etc. etc. a long run on motorway/dual carriageway will often result in a higher average mpg than short runs where it isn't operating at optimum for a higher % of the time etc.

As an example in daily mixed motoring (anything from 1/2 a mile to 15 miles) I average ~45mpg but on an 80 or 90 mile motorway/dual carriageway run I will get 55+mpg & that's not with driving like your granny ;)

[Awebb180]

4 year service has new air filter and fuel filter so that could help towards the better mpg

Alex

[2912pwil]

Thanks guys, helpful... but no, no new air filter, boring straightforward service...