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Downstream O2 sensor and fuel economy 11MPG highway

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  #11  
Old 12-29-2010, 01:45 PM
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Are champion RE14MCC4 the correct plugs?
 
  #12  
Old 12-29-2010, 02:10 PM
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Whats wrong with going 80 with 36s and 456s and 12" of lift? Surely that wont affect my mileage........
 
  #13  
Old 12-29-2010, 03:23 PM
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This might be obvious, but your mood has a lot to do with mileage. Use your cruise control as much as possible, and accelerate as easily as traffic allows.

I started setting my cruise at 5 MPH over the speed limit (a decrease of 10 MPH for me), and saw my MPG go up 1.5 - 2.
 
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Old 12-29-2010, 04:01 PM
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i had cruise control set at 110km/h for the duration of the tank of gas... I got 470KM out of it air filter is practically brand new I just checked as well
 
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Old 12-29-2010, 05:47 PM
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Originally Posted by davidonmars
i had cruise control set at 110km/h for the duration of the tank of gas... I got 470KM out of it air filter is practically brand new I just checked as well
This is too little, I can make 550-600 km on one tank. What octane do you use?
 
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Old 12-29-2010, 06:31 PM
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i was using shell 89 for that fill up
 
  #17  
Old 12-29-2010, 08:18 PM
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Originally Posted by davidonmars
well im gonna pop the TB off and have a look. It seems to run perfectly though and it passed emmisions with flying colours so I doubt it needs a tune up but 16 new plugs couldnt hurt :P What plugs do these motors use? I'll go buy a whole wack of them tonight and throw them in
I'm in Stoney Creek just did the cottage run just outside of Midland
I got 17.3mpg at 115-120km/h
Have fun doing the plugs just did mine last week
Mike
 
  #18  
Old 12-29-2010, 08:27 PM
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Originally Posted by tomcat_m
I'm in Stoney Creek just did the cottage run just outside of Midland
I got 17.3mpg at 115-120km/h
Have fun doing the plugs just did mine last week
Mike
Yea the plugs will be interesting..... Its so high the truck ill have a hard time getting to the back plugs and it looks like the driver side rear plugs are pretty tight with the brake thingy, ill need a ladder or something haha... Another problem i'm having is getting 16 plugs most places only have 8 and when I tell them I need 16 there like no you don't its a V8 you only need 8.... I try to tell them it has 2 per cylinder but they don't seem to comprehend. HAHA Did you notice an increase in MPG when you did the plugs? My last cottage run cost me i'd say about $130 as its 250km each way and I wasnt gonna push it that last 30 odd KM on the line. Luckily I didnt because i put in 97 liters to fill it back up and the tank is a 98 liters so it was pretty much bone dry
 

Last edited by davidonmars; 12-29-2010 at 08:29 PM.
  #19  
Old 12-29-2010, 08:29 PM
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Originally Posted by davidonmars
Yea the plugs will be interesting..... Its so high the truck ill have a hard time getting to the back plugs and it looks like the driver side rear plugs are pretty tight with the brake thingy, ill need a ladder or something haha... Another problem i'm having is getting 16 plugs most places only have 8 and when I tell them I need 16 there like no you don't its a V8 you only need 8.... I try to tell them it has 2 per cylinder but they don't seem to comprehend. HAHA Did you notice an increase in MPG when you did the plugs?
Yes and better power
Mike
 
  #20  
Old 12-29-2010, 08:31 PM
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Originally Posted by tomcat_m
Yes and better power
Mike
did you use regular copper plugs or platinum ones?
 


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