| [GMCnet] What is the best fuel economy obtainable from a GMCMotorhome? [message #241320] |
Tue, 25 February 2014 11:35 |
glwgmc
Messages: 1014
Registered: June 2004
Karma: 10
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Hi Matt,
Our experience with Sharon's 2010 Prius is very different. She has perhaps the worst drive pattern possible, lots of short runs the two miles (one way) to our four stop light town, an occasional trip 30 miles to Grants Pass, a once in a while 75 mile jaunt to Medford and a couple of times a year a nearly 300 mile trip to Portland. She makes no effort to drive for economy, she just gets in and goes. Since new her overall mileage is just under 50mpg and the car has never been back to the dealer for anything but one recall notice. The oil is changed every 10,000 miles as called for in the manual. Batteries show no different behavior now than when new. Even if one left off everything about the hybrid technology and great mileage, it would still be a best of breed car. Our experience anyway.
As to GMCs, both the Clasco and the Royale get the same 8-10 most owners report. So far it looks like the now lower gearing (3.21 final drive and 3.5 Powerchain in the transmission = 3.67 over all) may increase the average a bit in both coaches in the terrain in which we live and the speeds at which we drive. The Archoil fuel conditioner I am experimenting with on this trip may help a little but I will not know until we get back and calculate the total fuel used and actual miles driven correcting for any odo error.
Another poster questioned whether the use of 87 octane E10 fuel would require any different distributor timing. Our experience is that it does not. We run 87 octane E10 in both coaches and both run Patterson HEI distributors set at 10 degrees initial just as Dick Patterson suggests.
Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
Visitors always welcome!
glwork@mac.com
http://jerrywork.com
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Message: 3
Date: Tue, 25 Feb 2014 10:57:15 -0600
From: Matt Colie <matt7323tze@gmail.com>
Subject: Re: [GMCnet] What is the best fuel economy obtainable from a
GMCMotorhome?
To: gmclist@temp.gmcnet.org
Message-ID: <3aea0.530ccb69@gmc.mybirdfeeder.net>
Content-Type: text/plain; charset="ISO-8859-15"
The early Volts were only released in the east and west megapoli. Their thoughts being that demand would be highest there and the economy demonstration would also be best as drivers there spend less time driving and more time waiting. A fellow I know wanted one so badly that he bought one through an east coast dealer and drove it back to Michigan. He got 36MPG on the highway dur his return. This was no surprise to me as the only two Prius I know don't do any better than Mary's 2001 Civic and not as well as my 1979 Rabbit diesel did when I had it.
What can a GMC do?
I keep careful records and twice we have hit around 12. Several times in the 10's. But this requires, the correct terrain, the right temperatures, low speed roads and non-alcohol laced fuel.
Matt
--
Matt & Mary Colie - Members GMCMI, GMCES Going to MontgomeryThe majestic, once snow covered glacier Chaumi?re is in for the winter.
'73 Glacier 23 With 4 Rear Brakes that pull as they should
SE Michigan - Twixt A2 and Detroit
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Jerry & Sharon Work
78 Royale
Kerby, OR
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