Slight drop in fuel mileage - Diesel Truck Forum -
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post #1 of 4 (permalink) Old 11-09-2011, 08:44 PM Thread Starter
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Slight drop in fuel mileage

2011 F-250 SC 6.7L 14K miles

I have noticed a slight drop in gas mileage. Not much, 1-1.5 mpg average over the past month. Could it be the colder weather setting in???

Not too sure what to expect since this is my first Diesel.
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post #2 of 4 (permalink) Old 11-09-2011, 09:16 PM
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probably winter diesel, the mix is different and you will lose a little mileage.

09 Dodge 2500 4X4 G56, not stock.
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post #3 of 4 (permalink) Old 11-11-2011, 05:28 AM
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Originally Posted by BUCK2 View Post
probably winter diesel, the mix is different and you will lose a little mileage.
Come November my mileage always starts to go down between the fuel and the increased idle/longer warmups (a colder engine doesn't run as efficiently).

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post #4 of 4 (permalink) Old 11-13-2011, 12:44 AM
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Definately more idel time for warm up but I know my mileage drops due to tire selection during winter as well.

I run a softer mud terrain with studs and siping (sp?). Also lower tire pressure for better tread contact seems to impact the fuel economy.

I have 60,000 km's or about 40,000 miles on my CC 4x4.
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