XJ6 & XJ12 Series I, II & III 1968-1992

excessive fuel consumtion

 
  #2  
Old 01-16-2008, 04:31 PM
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Default RE: excessive fuel consumtion

Ouch, that's more fuel I believe than the car can actually burn, even a 12 cyl...gotta have a hole in gas tank!

I hope you were truly exaggerating about your fuel mileage.
 
  #3  
Old 01-16-2008, 04:37 PM
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Default RE: excessive fuel consumtion

Must have huge plumes of smoke behind you to run that rich. Check for leaks.
 
  #4  
Old 01-18-2008, 10:34 AM
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Default RE: excessive fuel consumtion

If you're gas tank is leaking, you would probably see it when you're parked. It's probably a leak in your fuel lines somewhere. Check the connections at the fuel filter to start.
I guess my 12mpg could be worse, eh?
 
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Old 01-18-2008, 11:11 AM
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Default RE: excessive fuel consumtion

12 mpg would be normal for a v12. I read it as a gallon a mile.
 
  #7  
Old 01-20-2008, 11:22 AM
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Default RE: excessive fuel consumtion

Ummmm as Ken said, Look for leaking at fuel lines, especially up at engine. Horror stories could be told of V12's catching fire.
 
 
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