I started having this problem quite a while ago. Now, since it got cold
outside it became even worse. I am getting at least 30% drop in my MPG.
On average I got about 24 MPG during normal highway and city driving.
Now i get about 17 MPG.
Recently I did full maintance on it. I have changed timing belt, spark
plugs, wires etc. I have not noticed any changes in the fuel economy
before and after my car got repaired.
My check engine light is off. In the morning car starts normally.

What should I check? Please advise.
Thanks

1993 Prelude 4WS
2.3L engine
175K miles
manual

vkutsevich (AT) gmail (DOT) com wrote:

If you're in Alaska, it might be normal. Are you warming it up according
to the owner's manual?

'Curly'

I am in VA.
Every morning I warm up my car for about 2-3 min and then drive slowly
until engine reaches the normal temperature.




On Jan 26, 4:05 pm, motsco_ <mots... (AT) interbaun (DOT) com> wrote:

Consider everything listed at
http://home.earthlink.net/~honda.lioness/id11.html

Take seriously the counsel to use OEM for certain parts.

I'd probably replace the PCV valve first.

vkutsevich (AT) gmail (DOT) com wrote in
news:1169844462.939267.252720 (AT) l53g2000cwa (DOT) googlegroups.com:

Air filter?

Fuel mileage typically drops in winter temps. Northern gas stations change
their fuel mixtures in winter,too.

are you keeping your tires inflated properly?

you could also need a tranny fluid replacement.
Are you using the right engine oil grade? like a 5W30 if that's what's
called for for your model.

maybe a lazy O2 sensor? they can get "lazy" and not trigger a "check
engine" light.
They supposedly are only good for around 60-100K miles.
OEM sensors are best.



--
Jim Yanik
jyanik
at
kua.net

Thanks for the tips guys!




On Jan 26, 8:00 pm, Jim Yanik <jya... (AT) abuse (DOT) gov> wrote: