Just as Brian said, the 123 300Ds normally get about 25mpg for highways,
less for city.
They're a pre-wind tunnel, "square block" design, so not as good on
mileage as the later cars.
Rob
'85 300D
Garden Grove, CA
==
On 7/28/11 1:17 AM, diesel_mercedes@yahoogroups.com wrote:
> Re: Trip mpg, no AC, fast, windows down
> Posted by: "JD"jdblackwell2@gmail.com jdb5025
> Date: Wed Jul 27, 2011 10:18 am ((PDT))
>
> 24.8 mpg?? Not sure what passes for the norm but
> my '92 300D got 36.4 mpg on a trip from
> Marysville, WA to Portland, OR. She routinely
> gets 28mpg in my around town travels. My '86 190D
> 5 speed posted 41mpg on a week of my wife's I-5
> commute and gets 34 around town. This being
> Seattle you can guess we didn't use the a/c. Both
> have 250,000+ miles on the original engines. I run
> slightly larger than spec Nokian Entyres; 205 *50*
> 17 on AMG wheels on the 300D and *195* 65 15 on
> the 190D. This gives a 3.5% and 2.5% greater
> rolling diameter respectively combined with what
> ever the whatever the reduced rolling resistance is.
>
>
>
>
> Messages in this topic (5)
> __________________________________________________________
> 3b. Re: Trip mpg, no AC, fast, windows down
> Posted by: "BStromsoe"bstromsoe@yahoo.com bstromsoe
> Date: Wed Jul 27, 2011 12:07 pm ((PDT))
>
> The norm for 1983ish w123 300d turbos is 25 mpg
>
>
> brian from la verne, ca
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