Trip report

jim green

New member
Jul 16, 1998
31
0
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Thanks for the trip report.....great !
- ----- Original Message -----
From:
To:
Sent: Thursday, July 15, 1999 5:28 PM
Subject: GMC: Trip report

> We returned last week from a relatively short trip to Colorado. A total of
> 1942 miles. It was a trouble free trip. We left Okla City and traveled
west
> through the Panhandle into N Mex to Raton. At that point we took I-25
north
> over Raton Pass at 7834 ft. This proved to be the slowest of the many
passes
> we crossed because the point where we got on I-25 was at the bottom of the
> pass and we were not able to get up normal speed. Topped pass at about 25
mph.
>
> From there north to Denver, then I-70 west to Empire. There is a long 6%
> grade out of Denver but isn't classified as a pass. At Empire we took US
40
> over Berthoud Pass, 11,315 ft. to Grand Lake which is on the southwest
> corner of Rocky Mt. Natl Park. After being well fed by friends for a
couple
> days, US 40 again over Muddy Pass 8772 ft and Rabbit Ear Pass 9426 to the
> Steamboat Springs area. After a family reunion, south again on Col. 131
to
> I-70 at Wolcott. East over Vail Pass 10,666 and Loveland Pass 11,992. I
> shift down to 2nd gear when I pull down to 40 mps. Shift down to 1st gear
> when I pull down to 25. Upshift again at a little over 30mph. Topped
these
> passes from 25mph at Raton, to 35mph.
>
> My complete radiator was replaced last summer. I did not experience any
> heating problems. Coolant temp stayed about where it does on flat
driving,
> but the fan got a good work out and did an efficient job. The Trans temp
> also stayed at the same temp as normal driving, with one exception. (I
have
> the Trans cooler mounted free standing 7 inches in front of the radiator).
> For several miles on the Loveland Pass, it was stop and go. (road work).
> Stop for two or three minutes, then go a few hundred feet never getting
out
> of 1st gear. Trans temp went up 20 degrees over normal under these
> conditions.
>
> Gasoline mileage: I used only 87 Octane. We ran the Onan about 4 hours
on
> the trip. Ran the dash AC approximately 60% of the miles. MPG using
> corrected odometer reading was 9.9. I have a 403 with 3:46 final drive.
> Might add that awhile back the carb was rebuilt under the supervision of
Jim
> Bounds when he was with another company. It has performed flawlessly
since.
> Just a hint of vapor lock once. Stopped at a traffic light and when
started
> up again, it wanted to bog down momentarily.
>
> Justin