Isuzu Axiom Real World MPG Numbers

15 messages, Last post on Apr 19, 2007 at 2:56 PM

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#13 of 15 Re: my mpg [bren] by jamrock02 Apr 16, 2007 (3:16 pm)
Replying to: bren (Apr 16, 2007 2:17 pm) I asked my dealer about this same thing and was told the on-board system only gives an estimate of MPG and miles to empty.
#14 of 15 Re: my mpg [bren] by cptsesso Apr 19, 2007 (8:51 am)
Replying to: bren (Apr 16, 2007 2:17 pm) Did you reset the average mpg after you filled it up? If not, reset it after the next fill up and check it again. You will find it is much more accurate this way. Replies to this message: bren (Apr 19, 2007 2:56 pm)
#15 of 15 Re: my mpg [cptsesso] by bren Apr 19, 2007 (2:56 pm)
Replying to: cptsesso (Apr 19, 2007 8:51 am) Yes, I have reset it each time. Today I filled up and calculated 17 mpg while the display claimed 18.7 mpg. So the display was 10% off again. Oh well. I'm curious if using synthetic oil and a K&N air filter would improve mpg a bit. I often read people claiming that doing this can add 1 or 2 mpg, but I did both things for my previous car just a month before selling it, and they basically had no impact.