| Re: [GMCnet] 4.8 MPG. [message #324092] |
Wed, 20 September 2017 22:12  |
James Hupy
Messages: 6806
Registered: May 2010
Karma:
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Senior Member |
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Bob, watch the exhaust temp in just off of lean cruise. It gets into the
danger zone really fast. Talk to Randy and George before you do too much,
particularly with a heavily laden coach. It can be done, with careful
management.
Jim Hupy
Salem, Or.
78 GMC ROYALE 403
On Sep 20, 2017 7:02 PM, "Bob Dunahugh" wrote:
That's the MPG range I got too with the carb. Got about 7.5 mpg with a
17000 lbs GVW over 538 miles to Elkhart. Time will tell with more miles.
Extremely pleased with the Howell EFI. Next to add the EBL so I can read
instant MPGs, and go to the 16.5 fuel mixture in the lean burn mode. Bob
Dunahugh
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