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Author
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Topic: Why am I only 200 miles per tank?
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quickblue302
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Member # 7912
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posted
 
 
1993 mark viii,
New motor, fuel injectors, fuel filter, new tires,clean air filter, new 02s. Ect..
Most of my driving is In town stop n go with some freeway. Mods, Sct chip, steeda uds, 12c plugs. I can only manage 200mpt on cal 91 octane, why?
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Eat rice it's good for you!
Posts: 624 | From: sac | Registered: Sep 2007
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SLOW95GTS
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Member # 10365
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posted
I'm gonna say the weight of the car.
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1995 Mustang GTS 5.0 - "minor mods"
Posts: 1199 | From: East Bay | Registered: Oct 2010
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coupedup
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Member # 9987
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posted
the stock gas tank holds 20 gallons in the viii model, so you are averaging 10 miles per gallon... Also higher octane burns faster than lower octane.
Posts: 4406 | From: Ca | Registered: May 2010
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coupedup
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Member # 9987
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posted
the stop and go in the city is what is causing the poor gas mileage. 10 to the gallon in the city is about right
Posts: 4406 | From: Ca | Registered: May 2010
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quickblue302
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Member # 7912
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posted
quote:
Originally posted by ILLMNRD86:
the stock gas tank holds 20 gallons in the viii model, so you are averaging 10 miles per gallon... Also higher octane burns faster than lower octane.
Lol 18.5 gallons 91 burns slower than 87. Less volatility.. ![[Wink]](wink.gif)
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Eat rice it's good for you!
Posts: 624 | From: sac | Registered: Sep 2007
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coupedup
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Member # 9987
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posted
that means you are getting less than 10 miles to the gallon. And u are right it does burn slighly slower but higher octane has a faster reacting flashpoint then lower octane. ![[Razz]](tongue.gif)
Posts: 4406 | From: Ca | Registered: May 2010
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quickblue302
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Member # 7912
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posted
Ya ya ya lol I should be get in 16mpg.
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Eat rice it's good for you!
Posts: 624 | From: sac | Registered: Sep 2007
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dohc90lx
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Member # 11863
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posted
that should get in the high teens low twentys. check for a pluged exhaust and new motor dosent mean good one, those have cylynder head problems. they might not misfire but have leakdown through the exhaust valves from burned seats. a misfire may not show up but poor fuel economy will.
Posts: 129 | From: antioch | Registered: Apr 2012
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nitrous_bob
CAFords OG
Member # 77
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posted
well are you heavy footed ?
i'll burn 1/2 tank at the dragstrip
1/4 mile at a time.... for 5 miles
seems crazy...but it is what it is
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5.0 OG since 1990
Posts: 1402 | From: st clair shores MI | Registered: Nov 2000
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Duncan Motors
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Member # 7045
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posted
is your gears done with out the speedo correction?
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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