4.8 MPG

1976GMC

1976GMC

Active member
Dec 16, 2017
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Washington State
> ...What do you do on hills to get an average of 8-9?

Looking back at some older discussions, I noticed that this one did not generate any replies. I have the same question as Keith V - what is the best
way to drive our GMC in the areas with lots of hills?
--
Vadim Jitkov
'76 Glenbrook 26'
Pullman, WA
 
Get yourself a good vacuum gage and don't leave it in the package. INSTALL
IT. Then watch it. When it registers below 7 inches of vacuum, lift up on
the gas pedal, and manually downshift into second gear. Then proceed at 10
to 12 inches of vacuum until you crest the hill. Then, up shift to 3rd. It
will improve your fuel economy and make your engine last longer. You will
have a bit more time to enjoy the view out the windshield, too.
Jim Hupy
Salem, Or

> ...What do you do on hills to get an average of 8-9?

Looking back at some older discussions, I noticed that this one did not
generate any replies. I have the same question as Keith V - what is the best
way to drive our GMC in the areas with lots of hills?
--
Vadim Jitkov
'76 Glenbrook 26'
Pullman, WA

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Jim, Your corret on the driving habit.
As far as milage, you need to take average of at least 4-5 tank fulls to
get close as the tans never fill the same each time.
I know some will debate me on that, but I know what I have experianced over
milion miles on these.

> Get yourself a good vacuum gage and don't leave it in the package. INSTALL
> IT. Then watch it. When it registers below 7 inches of vacuum, lift up on
> the gas pedal, and manually downshift into second gear. Then proceed at 10
> to 12 inches of vacuum until you crest the hill. Then, up shift to 3rd. It
> will improve your fuel economy and make your engine last longer. You will
> have a bit more time to enjoy the view out the windshield, too.
> Jim Hupy
> Salem, Or
>

>

> > ...What do you do on hills to get an average of 8-9?
>
>
> Looking back at some older discussions, I noticed that this one did not
> generate any replies. I have the same question as Keith V - what is the
> best
> way to drive our GMC in the areas with lots of hills?
> --
> Vadim Jitkov
> '76 Glenbrook 26'
> Pullman, WA
>
> _______________________________________________
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> Unsubscribe or Change List Options:
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
I try to watch the vacuum gauge. I have one of those dual gauges with vacuum and RPM displays. To be honest, I do not like it as much as I though I
would. An upgrade to a dedicated RPM gauge and separate vacuum gauge is on my wish list.
Do you recommend to disconnect the kickdown solenoid switch on the gas pedal?

> Get yourself a good vacuum gage and don't leave it in the package. INSTALL
> IT. Then watch it. When it registers below 7 inches of vacuum, lift up on
> the gas pedal, and manually downshift into second gear. Then proceed at 10
> to 12 inches of vacuum until you crest the hill. Then, up shift to 3rd. It
> will improve your fuel economy and make your engine last longer. You will
> have a bit more time to enjoy the view out the windshield, too.
> Jim Hupy
> Salem, Or
>

>

> > ...What do you do on hills to get an average of 8-9?
>
>
> Looking back at some older discussions, I noticed that this one did not
> generate any replies. I have the same question as Keith V - what is the best
> way to drive our GMC in the areas with lots of hills?
> --
> Vadim Jitkov
> '76 Glenbrook 26'
> Pullman, WA
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

--
Vadim Jitkov
'76 Glenbrook 26'
Pullman, WA
 
Manny does not install kickdown switches in his transmissions. If you need
to shift down, do it manually while coasting. I try to neutralize the
throttle so that the engine is neither pushing nor pulling the coach.

The hydraulics maintain higher pressures with less slippage when you shift
manually.

Rick “who never used enough throttle to kick it down even before the Manby
Tranny” Denney

>
> Do you recommend to disconnect the kickdown solenoid switch on the gas
> pedal?
>

--
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
 
Bruce,
You have the EBL unit with VSS so your getting the mpg read ing.
That is always a great way to se how things are functionig.
I'm sure you are happy you have the assembly.

> Manny does not install kickdown switches in his transmissions. If you need
> to shift down, do it manually while coasting. I try to neutralize the
> throttle so that the engine is neither pushing nor pulling the coach.
>
> The hydraulics maintain higher pressures with less slippage when you shift
> manually.
>
> Rick “who never used enough throttle to kick it down even before the Manby
> Tranny” Denney
>
> On Wed, Jan 17, 2018 at 9:50 PM Vadim Jitkov

>
> >
> > Do you recommend to disconnect the kickdown solenoid switch on the gas
> > pedal?
> >
>
>
> --
> Rick Denney
> 73 x-Glacier 230 "Jaws"
> Off-list email to rick at rickdenney dot com
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Just a very quick look on Amazon finds many HUDs. Unfortunately, they all tie to OBD systems. There were some cheap devices that would reflect your
smart phone display on to a piece of reflective film on the windshield, or on to a mirror.
OBD system is an obstacle to many interesting devices for motor vehicles.
Tom
--
2012 Phoenix Cruiser model 2552
KA4CSG
 
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