info centre MPG accuracy - Page 2 - Alfa Romeo Forum
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Originally Posted by Alexandrus View Post
The GT and 147 are pretty accurate, and they DO count the fuel used when stationary.
+1 for both of the above.

I've never understood why they should be too far out, the system has access to wheel speed sensor 1PPR signal and fuel injector pulses (which ought to be a very consistent quantitiy of fuel)
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I've noticed mine is way out, it stated 72mpg after 50 miles on motorway driving. If you feather the throttle it's actual read is 99.9mpg so maybe thats why it's pushing the average up so high?
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Interesting. Its seems that there is a clear inconsistency between models/engines. However, all the 20v diesels seem to be 10-13 mpg optimistic on the Infocentre. This suggests that the algorithm is quite good but needs tweaking for each engine to ensure accuracy. Shame we cannot do that

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accuracy , centre , info , mpg

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