Jazz blues

In terms of fault occurrence, my Jazz is the most unreliable car I have ever owned. After a few hundred miles, the fuel consumption worsens by 10mpg or so. I discovered by chance that using high revs (6,000 plus) for a few minutes would restore the normal consumption performance. The problem has recurred and recurred and the main dealer either couldn't or wouldn't fix it. The car now seems stuck in its poor fuel consumption. It's beginning to look like a heap of unreliable junk. If you have any suggestions about the fault I would like to hear them. Otherwise perhaps you should be honest with your readers and warn them that all is not wonderful in Honda ownership.

Asked on 7 March 2009 by

Answered by Honest John
You are probably driving it too slowly, for short distances, on the wrong fuel. Switch to Shell V-Power petrol, give it a little bit of stick occasionally, and it might be okay.
Similar questions
You have answered a number of questions about expensive electronic problems with VW cars. Were the problems only found in vehicles built during a certain period, or are they still present, even in new...
Despite its somewhat boastful "Just like a Golf" advertising campaign, presumably Volkswagen will not be comparing the aircon systems of other cars with its own. My Golf V Sport (just a few weeks past...
I have owned an 07 BMW 320D Sport Tourer Auto from new. Until last Autumn, I was averaging 37mpg. This has fallen over the winter to 24mpg in town and 34mpg on open road. There are no significant indications...