lower gas mileage when brand new?
07-13-2015, 10:33 AM
#1
Thread Starter
Join Date: Jul 2015
Location: Florida
Posts: 8
lower gas mileage when brand new?
Hey guys,
Just picked up a new 15 magnetic gray 3.7L this past weekend. Do these get lower gas mileage then expected when brand new? I have only put 40 miles on the car and it has gone through a quarter tank of gas. The digital MPG display states its averaging 15mpg. That 40 miles was mostly half city and half hwy driving the car as normal as possible, only had a heavy foot for 10 seconds on the hwy to see how it accelerates.
Just picked up a new 15 magnetic gray 3.7L this past weekend. Do these get lower gas mileage then expected when brand new? I have only put 40 miles on the car and it has gone through a quarter tank of gas. The digital MPG display states its averaging 15mpg. That 40 miles was mostly half city and half hwy driving the car as normal as possible, only had a heavy foot for 10 seconds on the hwy to see how it accelerates.
07-13-2015, 05:11 PM
#2
Join Date: Jun 2009
Location: Oklahoma
Posts: 9
Every new car I have purchased always got lower gas mileage when new. I just purchased a 2015 Magnetic Metallic convertible. Today I drove about 50 miles and the computer showed 19.5. Yesterday a longer 200 mile road trip in the Arkansas Ozarks and averaged 26.9. Car has 740 miles as of today.
I breaking it in right now and vary the speed and how much load I put on the engine. Not the best for best gas mileage.
If you have a heavy foot I could see 15 mpg. Give time and it will get better.
I breaking it in right now and vary the speed and how much load I put on the engine. Not the best for best gas mileage.
If you have a heavy foot I could see 15 mpg. Give time and it will get better.
08-26-2015, 12:43 PM
#3
Join Date: Aug 2015
Location: Kentucky
Posts: 28
Hey guys,
Just picked up a new 15 magnetic gray 3.7L this past weekend. Do these get lower gas mileage then expected when brand new? I have only put 40 miles on the car and it has gone through a quarter tank of gas. The digital MPG display states its averaging 15mpg. That 40 miles was mostly half city and half hwy driving the car as normal as possible, only had a heavy foot for 10 seconds on the hwy to see how it accelerates.
Just picked up a new 15 magnetic gray 3.7L this past weekend. Do these get lower gas mileage then expected when brand new? I have only put 40 miles on the car and it has gone through a quarter tank of gas. The digital MPG display states its averaging 15mpg. That 40 miles was mostly half city and half hwy driving the car as normal as possible, only had a heavy foot for 10 seconds on the hwy to see how it accelerates.
08-26-2015, 02:49 PM
#5
Join Date: Aug 2015
Location: Kentucky
Posts: 28
I'm curious about this too - to be honest. I'm hoping for a decent average - else... i'll be kicking my own a$$ for not getting the 5.0..
lol
08-26-2015, 04:27 PM
#6
3rd Gear Member
Join Date: Feb 2008
Location: Anchorage, AK
Posts: 987
Straight from Ford.
OP, yours is way too young to be looking at mileage yet, and hand calculated is the only way to go, averaged over several tanks.
As quoted from the 2015 owners manual.
"Calculating Fuel Economy
Do not measure fuel economy during the
first 1000 mi (1,600 km) of driving (this is
your engine’s break-in period). A more
accurate measurement is obtained after
2000 mi (3,000 km) to 3000 mi
(5,000 km). Also, fuel expense, frequency
of fill ups or fuel gauge readings are not
accurate ways to measure fuel economy.
1. Fill the fuel tank completely and record
the initial odometer reading.
2. Each time you fill the fuel tank, record
the amount of fuel added.
3. After at least three fill ups, fill the fuel
tank and record the current odometer
reading.
4. Subtract your initial odometer reading
from the current odometer reading.
5. Calculate fuel economy by dividing
miles traveled by gallons used (For
Metric: Multiply liters used by 100, then
divide by kilometers traveled)."
As quoted from the 2015 owners manual.
"Calculating Fuel Economy
Do not measure fuel economy during the
first 1000 mi (1,600 km) of driving (this is
your engine’s break-in period). A more
accurate measurement is obtained after
2000 mi (3,000 km) to 3000 mi
(5,000 km). Also, fuel expense, frequency
of fill ups or fuel gauge readings are not
accurate ways to measure fuel economy.
1. Fill the fuel tank completely and record
the initial odometer reading.
2. Each time you fill the fuel tank, record
the amount of fuel added.
3. After at least three fill ups, fill the fuel
tank and record the current odometer
reading.
4. Subtract your initial odometer reading
from the current odometer reading.
5. Calculate fuel economy by dividing
miles traveled by gallons used (For
Metric: Multiply liters used by 100, then
divide by kilometers traveled)."
08-26-2015, 07:16 PM
#7
Try to 'forget' about it and then revisit the issue after a couple thousand miles. Set the display on the dash to show something other than the current mpg's.
By the way, Arsenal you have 3.6L in your vehicle details under your username instead of 3.7L.
By the way, Arsenal you have 3.6L in your vehicle details under your username instead of 3.7L.
09-23-2015, 08:06 PM
#8
Join Date: Sep 2015
Location: SC - SOUTH CAROLINA
Posts: 14
Cars need time to break in. Also, any car will vary by tempurature and humidity. A couple months ago, I was getting over 24mpg combined in my Acura RL. Now it's 22. A little more traffic, and the air has changed. We recently bought a 2015 Honda CR-V with the "Earth Dreams" engine and CVT combo. mpg was not impressive at first, but now after it's broke in, getting 28mpg with mostly city driving. Amazing. Don't laugh, the practical CR-V is what's helping me get a Mustang eventually!
03-04-2016, 09:45 PM
#10
Join Date: Mar 2016
Location: Texas
Posts: 26
Many strange and miraculous things can be done with the computer programming of new engines. However, it is suspected by many that the computer is set to run a little rich for the first however many miles (maybe 500?). This is to avoid all the problems running lean can cause, primary among them being overheating.