Corolla Mpg Computer, How Accurate?

[rickers]

Bought a 2001 1.4 vvti recently for my wife, as her old rolla got shortened and written off, and was just wondering how accurate the mog computer was , as the one in my dad's car is indicating way to high (Yaris verso saying 65+ when real is about 50).

any thoughts

rickers

[robert]

Im on my 5th new shape Corolla now (TSport), had petrols and diesels, and found that some of them seemed to start mis-calculating the average MPG after several thousand miles. The easy way round this is to reset all the figures in the trip computer and start again. After a few hundred miles the true average will start to appear. The old model Avensis <2003 also appeared to suffer from this problem.