Uh Oh.....MPG controversy....


cbxer55

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I can barely get those figures on the highway (24 mpg or 12 litres per 100k), but then my reg cab truck has the 3L engine & the less fuel friendly 3.71 rear gears.
Likely you mean 3.73. Same as I have. Lucky to get 18 mpg. Around town, likely around 15. I gave up keeping tabs on it years ago. Throw in the fact mine pings on anything less than 93, and it's not worth worrying about gas mileage. My Mustang has a readout on the dash, have to scroll to get it, that tells me what the MPG is. 4.0 V-6, currently reading 23.2, and that's about a 50/50 mix of highway and in town.
 


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55trucker

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Memory fail....yeah 3 instead on 1, I suffered thru that pinging situtation as well until I replaced the MAF, for whatever reason the oem piece fed the PCM incorrect info on the airflow, PCM was leaning out the mixture, engine pinged mildly under light throttle when the converter was locked up & was a nightmare when the a/c was on. All that went away with a fresh aftermarket MAF. The tailpipe is still so clean you can wipe your finger in the outlet & nothing comes out.
 

sgtsandman

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sgtsandman

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I can barely get those figures on the highway (24 mpg or 12 litres per 100k), but then my reg cab truck has the 3L engine & the less fuel friendly 3.71 rear gears.
My 2011 only barely thought about 23 mpg one time. That was before the tire change and some of the other mods I've done knowing full well there would be a mpg penalty. Happily, it's still getting about 19 mpg on the highway, which is what is what it is expected to get. 20+ mpg is probably a thing of the past and it is a truck. Heck my 1998 with the 2.5 Lima usually only got about 22 mpg. I figure it's a truck and it's going to get truck gas mileage. The 2019 doing as well as it is, is a nice plus.
 

55trucker

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I really feel compelled to dump the entire powertrain in favor of shoehorning a Mustang ecoboost/6r80 trans into the engine bay. If 3600lbs. of Mustang will get near 32 mpg then I won't sneeze if I can get 29 out a 3300lbs truck.
Near 300 horse is a nice bonus too. *won't need those 3.73 gears anymore either*.
 

8thTon

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Likely you mean 3.73. Same as I have. Lucky to get 18 mpg. Around town, likely around 15. I gave up keeping tabs on it years ago. Throw in the fact mine pings on anything less than 93, and it's not worth worrying about gas mileage. My Mustang has a readout on the dash, have to scroll to get it, that tells me what the MPG is. 4.0 V-6, currently reading 23.2, and that's about a 50/50 mix of highway and in town.
Something is wrong - my 3.0 never pings at all. With a 4.10 rear I max out at 19mpg, although I never had a pure highway trip to test that.
 


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