On Tue, 11 Mar 2008 01:41:21 -0700, aspasia wrote:
>Anybody suggest why?
>
>I only put about 4K on the car since I bought it 1-3/4 years ago with
>92K on it. I mostly drive around town, but also take the freeway to
>"blow it out".
>
>Lately I notice the needle dropping like lead. I can't afford to go
>anywhere, with these gas prices!
>
>I took it back to CarMax and they did what they call a tune-up,
>which is just replacing the spark plugs. Is that a tune-up?
>They *did* put in platinum plugs, supposedly better?
>
>I also had them replace air filter, fuel filter and change the oil.
>
>$$$$ and mileage is no better.
>
>What else could be keeping mileage so low?
>
>Tx
>
>Aspasia
You guys have been way kewl in identifying the sensor problem(s)!
I thanked you earlier, and want to do so again.
I am relieved to learn this is not a major $$$, so I can go to my nabe
mechanic with advance information..
I discussed this long distance with my son (who knows about cars), and
he wondered why the mechanics at CarMax hadn't done a simple test with
the diagnostic gadget that reads out problems. I told him I didn't
know WHAT CarMax mechanic had done; all I know is that they
replaced the spark plugs and changed the oil, air, and fuel filters.
So when I take the car back to CarMax (so they can fix the antenna
they bent), I will try to find out whether they did a diagnostic test,
and if so, what data it yielded..
QUESTION: One poster suggested I use high octane (91) gas; said lower
octane is harmful. This has been argued back and forth FOREVER. I
don't mind spending the extra $$$ if there's any serious research
validating his point. Is it purely a matter of opinion, or can
anyone refer to such "serious research"?
Again, thanks, amigos - your advice much appreciated.
Aspasia
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