How much at idle?
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Beer Fridge Finder
Joined: Apr 2003
Posts: 14,988
Likes: 1,151
From: Savannah, GA
How much at idle?
Hey does anyone know how much fuel a 7.3 goes through at idle? I've always heard 1/3 gallon an hour, but wondered if anyone actually knew. I realize I go through more beer an hour than my truck does fuel.... 
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
Found this on another forum...
Found this while checking out Vegistroke's site:
How Thirsty do you think your PSD is at
an idle ?
Maybe a gallon an hour?
How about a gallon in 2 hours? Close, but not quite.
In my testing(+ - 10%) our 7.3's consume 1oz every
1min 12sec, So round that down to an 1oz/min. And of
course we all remember our basic measurements and
that there are 128oz/gallon. So with that in mind it will
take 2hrs and 8min to use one gallon of fuel.
Found this while checking out Vegistroke's site:
How Thirsty do you think your PSD is at
an idle ?
Maybe a gallon an hour?
How about a gallon in 2 hours? Close, but not quite.
In my testing(+ - 10%) our 7.3's consume 1oz every
1min 12sec, So round that down to an 1oz/min. And of
course we all remember our basic measurements and
that there are 128oz/gallon. So with that in mind it will
take 2hrs and 8min to use one gallon of fuel.
Thread Starter
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Beer Fridge Finder
Joined: Apr 2003
Posts: 14,988
Likes: 1,151
From: Savannah, GA
Honestly though, thanks for the info!
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Beer Fridge Finder
Joined: Apr 2003
Posts: 14,988
Likes: 1,151
From: Savannah, GA
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Postmaster
Joined: Jan 2009
Posts: 4,006
Likes: 1
From: AL, Reform
there is what i have seen.
Amount of Fuel Burned when Idling:
- at idle of 650-670 rpm, engine consumes about 1 1/3 (1.33) quarts per hour, or about 1/3 gallons per hour.
- at idle of 1200 rpm, engine consumes about 2 3/4 (2.75) quarts per hour, or a little over 2/3 gallons per hour.
info credited to WayneT at TDS
Amount of Fuel Burned when Idling:
- at idle of 650-670 rpm, engine consumes about 1 1/3 (1.33) quarts per hour, or about 1/3 gallons per hour.
- at idle of 1200 rpm, engine consumes about 2 3/4 (2.75) quarts per hour, or a little over 2/3 gallons per hour.
info credited to WayneT at TDS
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Post Fiend
Joined: Feb 2008
Posts: 10,977
Likes: 5
From: Lancaster, Pa.
I like Clint's findings. If in fact thats true being stuck on a snow covered impassable road or highway your good for about 60 hours idling. We've had people stranded on highways for a day or two last winter, just good to know if I'm out there.
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