The highest MPG I have seen in my 2009 Ram Hemi is 19.4 MPG. I fuelled up and immediately hopped on the interstate for about 40 miles. When I got to my destination I just so happened to be flipping through the computer and thats what I saw. Mind you there was no traffic and I had very little hills to deal with. I wish I got that all the time!

 

Brand new truck from dealership to my driveway at 50 to 65mph using inertia technique in the hills. I was EXTREMELY light footed and the PCM "learned" to upshift and "Fuel Save Mode" early.


Year - 09 Build date 03-09
Model -1500 TRX Crew Cab 4 x 2
Engine - 5.7
Gears...3:55
Tires - 275/70/17 32.2" Dia.
Highway percent - 90
City percent - 10
Distance = 87 mi.
Location - Texas Hill Country - light traffic
Temp in the 60's
Barometric pressure 29.32 in. hg.
Octane - 87 Full Tank
Cruise Control NO NO NO...never in hilly terrain
Miles on truck - new
MPG - 20.4
Mods - none.

 

deleted

 

I just made a trip from Virginia Beach to Houston and went through 3 1/2 tanks... I ran Shell or Chevron 89 for the duration. I kept it at 70-80 with little to no stopping and managed 17.4 off the first two tanks. On the third tank, I slowed it down to 55-65 and managed 20.5 ......

 

Year - 2010
Model -SLT 1500 4x2 Quad Cab
Engine - 5.7
Highway percent - 20
City percent - 80
Location - SE Texas
Octane - 87
Hand or computer calc- Hand
Miles on truck - 219
MPG - 13.3
Mods - Stock

02/05/2010
Year - 2010
Model -SLT Lone Star 1500 4x2 Quad Cab
Engine - 5.7 Gear 3.21
Highway percent - 60
City percent - 40
Location - SE Texas
Octane - 87
Hand or computer calc- Hand
Miles on truck - 1100
MPG - 15.03
Mods - Stock


Not doing as good as I thought it would .....but do love truck

 

These Milages were done at -24 degrees celcius (-11 degrees F) Truck is brand New, I dont park in a heated Garage.

Year: 2010
Model: 1500 crew cab short bed sport
Engine: 5.7 Hemi
Highway percent: 30
City Percent: 70
Location: AB Canada
Octane: 87
Hand or COmputer calc: Computer
Miles on truck: 1000kms (1600 miles)
MPG: 24L/100kms (9.8 mpg)
Mods: None 3.92 rear end, Driving in Auto 4wd

 

Hey every one, went through another tank this week, I had 776km(482miles) done on 112 ltrs(29.5gallons) of gas. I am a conservative driver and always tryng to better the previous best mileage..my way from getting bored.

Year - 09
Model -1500 ST Quad Cab 4 x 4
Engine - 5.7
Gears...3:92s
Tires-17 and 20
Highway percent - 90
City percent - 10
Location -Montreal, Canada
Octane - 87
Hand or computer calc - hand
Miles on truck - 7000 kms
MPG - 16.33
Mods - none

I lost a few milespr gallon, but tis i in the cold climate of montral, soi it is expected.....I must do better...

Dario

 

Just came back from Clearwater Florida, 5000km's or 3000 miles round trip. I averaged mid 19's mpg on the way down and mid 18's mpg on the way back. I was heavier on the way back, one extra person plus luggage. We drove through that bad snow storm on the 19th of December, did 300 miles in 4hi on the I-81. The truck preformed very well in 4x4 as expected. When my wife was driving the computer read in the mid 20's mpg, she drives at about 60 mph where I drive mid 70's mph. Overall I am impressed with the real world mpg of this truck, I love the sound of the dual exhaust and the power available when I punch it even at 70 mph! Happy New Year!

 

An example
Year: 09
Model: 1500 Quad Cab
Engine: 4.7
Highway percent: 50
City Percent: 50
Location: PA
Octane: 87
Hand or Computer calc: Computer
Miles on truck: 4400
MPG: 18.1

Avg of about 20.7mpg on highway and 16.2 in city

 

Year: 09
Model: 1500 Crew Cab
Engine: 5.7
Highway percent: 20
City Percent: 80
Location: AB, Canada
Octane: 89
Hand or Computer calc: Computer/Hand (pretty close to the same)
Miles on truck: 10,000kms (6300miles)
MPG: 15.8