300C Fuel economy

Austin gets its own "new and disimproved" formula (one of the 20-odd
blends stupidly mandated in various parts of the country), which changed
about a year ago. The new stuff smells like kerosene and promptly
dissolved an old plastic air cleaner spacer on one of my carbureted
cars, but really doesn't seem to hurt gas mileage (on either the EFI or
carbureted cars0 as much as the "winter formula" gas that we got prior
to this latest re-forumlation.

 

I've got about 1200 miles on my 300C and can give you the following report:

Around town in Atlanta, I am averaging ~15 mpg.

I recently took a trip down to Auburn AL, (about 150 miles away), and set
the cruise at 78, with cruise control on, the MDS gets to take maximum
effect and my mileage improved to 22 mpg.

I expect mileage to improve more when no A/C is necessary, and if I cruised
a bit slower.

Bottom line though, if you put your foot in it, you automatically give up
any decent gas mileage.

It's pretty cool to watch the gas mileage on a recent reset after fillup on
the road. On level ground you can see the MDS kick in, (but don't feel it),
as the average mpg begins to tick up. When you begin an uphill pull, but
before the cruise applies more power, you can see the MDS kick off and the
mpg begins to tick down.

 

And after it has a chance to wear in a little more after a few more
miles.

Bill Putney
(to reply by e-mail, replace the last letter of the alphabet in my
address with "x")

 

Glad to read your post as my magnum with the hemi engine is getting about
same mileage around town. But here in Rancho Cucamonga, California I do a
lot of uphill driving.

--
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like an eggs-and-ham breakfast:
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