MPG issues for a 2000S

[dkh]

Originally Posted by blinkwatt

How are you basing this 19mpg? I've found that the OBC isn't accurate 90% of the time and it's better if you track your mpg on your own. My OBC tells me I'm pulling 20mpg most of the time but by trackign my mileage-to-gallons of gas I'm pulling in higher than that.

I wish I had the OBC mpg readout. I'm basing my mpg on amount of fuel at each fill-up and the miles traveled since the last fill-up. This number has been pretty consistent over the last, say, 10 fill-ups or so.

I had the OBC mpg readout on a 93 BMW 325is and it was usually fairly accurate compared to the real world, do-it-yourself calculation at the pump at each fill-up - but it was important to reset the computer mpg calculator at each fill-up to make a valid comparision.

[dkh]

I know I'm probably whining about 19mpg too much - after all that's still pretty good. It's just that to my exceedingly frugal wife it doesn't sit too well that I sold a 93 Mitsubishi Montero SUV (and a 73 911T) that was getting about the same mpg on cheaper regular to buy this 2000S. So, I get "see I told you should you should have bought the Honda S2000" - and as far as mpg she's probably right. Good car, just not a Porsche.

[wvicary]

To answer one of your questions.... yes MAF/O2 sensors can be slow to respond or only read correctly in a narrow range and not trigger a check engine light. Both of these items are easily checked by the dealer or Durametric software for use on a laptop.

[Frodo]

Quote:

"My old 01S got 19 city and 26 hwy. I think that's pretty typical."

Posted by husker boxster.

I, also, have an 01S, and get pretty much exactly this mileage. If you're getting a combined average of only 19 mpg, something's wrong. (Assuming you're not running the hell out of it continuously...)

[LowFlyR]

Originally Posted by dkh

I know I'm probably whining about 19mpg too much.

My '01 S has mostly had city driving lately and it gets average of 16.2mpg. Last summer roadtrip was 21-28mpg.