Miles per gallon- What are you getting?
Professional
Joined: Oct 2009
Posts: 143
Likes: 0
(!) this might be a bit off topic, but may help some people get better grip on their mpg (!)
Just to clarify,
the proper way to find mpg is to:
1 Make sure your speed/odometer are working PROPERLY
2 Fill 5 gallon can to keep as spare gas
3 Fill 5 gallon can for testing (or what ever amount you want to test with)
4 empty tank (preferably by draining)
5 mark mileage down and reset trip odometer
6 pour in set number of gallons of fuel (from testing can)
7 drive until empty again
8 use spare gas if needed to get to gas station
9 compare new mileage to old mileage
10 check mileage differance with trip odometer (just to verify everything in-dash is working properly)
this should be done on the highway and then a second time driving around town.
If your speed is messed up (test against county sheriff's road side speed guns), then your odometer is too. This is from an ASE cert. mechanic, and backed by a Chrysler/Mopar mechanic.
For Me, the only difference is, I have a set number of places I go in a week, so I just drive my usual routes, which include city and highway, and get my real-world mileage like that.
****I posted this clarification because a friend of mine read the earlier post, and said I was abnormally high compared to everyone else - he's not a member here, so couldn't write a reply, and asked me to clerify how and why mine was so high.****
Just to clarify,
the proper way to find mpg is to:
1 Make sure your speed/odometer are working PROPERLY
2 Fill 5 gallon can to keep as spare gas
3 Fill 5 gallon can for testing (or what ever amount you want to test with)
4 empty tank (preferably by draining)
5 mark mileage down and reset trip odometer
6 pour in set number of gallons of fuel (from testing can)
7 drive until empty again
8 use spare gas if needed to get to gas station
9 compare new mileage to old mileage
10 check mileage differance with trip odometer (just to verify everything in-dash is working properly)
this should be done on the highway and then a second time driving around town.
If your speed is messed up (test against county sheriff's road side speed guns), then your odometer is too. This is from an ASE cert. mechanic, and backed by a Chrysler/Mopar mechanic.
For Me, the only difference is, I have a set number of places I go in a week, so I just drive my usual routes, which include city and highway, and get my real-world mileage like that.
****I posted this clarification because a friend of mine read the earlier post, and said I was abnormally high compared to everyone else - he's not a member here, so couldn't write a reply, and asked me to clerify how and why mine was so high.****
Legend
Joined: Jun 2009
Posts: 8,025
Likes: 72
From: orangeville ontario
21mpg
'93 318 magnum (250k+ miles on it)
Auto transmission, 4x2
I posted similar post in another thread, so don't want to get in trouble for reposting it here...
This motor gets better mileage with a mix of e85 and e10 (bout 40/60 - so about e50?)
I also have 5w50 in the motor right now, with the hot florida summer.
and, I have to give credit to the Denso Iridium plugs I got for a 3-4mpg increase in fuel economy.
Like I said in the other post, I'm going to be working on making it a 25mpg truck - with some body work as well as engine and other systems tweaking.
'93 318 magnum (250k+ miles on it)
Auto transmission, 4x2
I posted similar post in another thread, so don't want to get in trouble for reposting it here...
This motor gets better mileage with a mix of e85 and e10 (bout 40/60 - so about e50?)
I also have 5w50 in the motor right now, with the hot florida summer.
and, I have to give credit to the Denso Iridium plugs I got for a 3-4mpg increase in fuel economy.
Like I said in the other post, I'm going to be working on making it a 25mpg truck - with some body work as well as engine and other systems tweaking.
hydrogen+match=kaboom
AeSix i do it a different way personally and some of the people who have fuel injection should probably do it this way because the electric fuel pumps could go to hell if the gas is run out, even though i have a carburated engine but anyways what i have to add is,
find out what size or how much gas your gas tank holds (my Dakota has a 22 gallon tank), fill it all the way up and reset the odometer, drive it until its down to half a tank divide half the tank size by the miles on the odometer and your anser should be the milage your getting
find out what size or how much gas your gas tank holds (my Dakota has a 22 gallon tank), fill it all the way up and reset the odometer, drive it until its down to half a tank divide half the tank size by the miles on the odometer and your anser should be the milage your getting
Professional
Joined: Oct 2009
Posts: 143
Likes: 0
AeSix i do it a different way personally and some of the people who have fuel injection should probably do it this way because the electric fuel pumps could go to hell if the gas is run out, even though i have a carburated engine but anyways what i have to add is,
find out what size or how much gas your gas tank holds (my Dakota has a 22 gallon tank), fill it all the way up and reset the odometer, drive it until its down to half a tank divide half the tank size by the miles on the odometer and your anser should be the milage your getting
find out what size or how much gas your gas tank holds (my Dakota has a 22 gallon tank), fill it all the way up and reset the odometer, drive it until its down to half a tank divide half the tank size by the miles on the odometer and your anser should be the milage your getting
there's two small problems with that.
one, who has the money to fill their tank now days? (please, let me know so I can bum some $$ off em
lol)two, Yeah, you can pump exactly 22 gallons, but, if your trucks like mine, you tend to not trust the gas gauge to be completely accurate. So are you positive you used 11 gallons when it's pointing at the half mark? On 2000 mile trips, that 1/2-1 gallon varience can mean the differance between making it there with gas to spare, and having to walk the last 100 miles.
I put just under 5 gallons in mine and sometimes ti goes to just over a quarter, sometimes just under, but it always drops down to the left of the E in 10 minutes of driving, but then it just sits there for like 3 days of driving.
Yes, I do need a new guage or probe or somethinganother
Yes, I agree, running your engine dry is a BAD idea, I thought I was pretty clear, but I guess not... :.( run it until it make it's first "burp", you'll still have fuel in the pump, lines, and injectors, IF you shut it off right away. Doing this two or three times isn't going to kill the truck, and if it does, you were going to have issues any ways soon.
Legend
Joined: Jun 2009
Posts: 8,025
Likes: 72
From: orangeville ontario
the best way to check you mpg is fill up your tank. reset your tripometer and drive 50 miles or so then fill up your gas tank again. then you know how much gas your truck used by how much it took to fill it up.
hehe yeah, but...
there's two small problems with that.
one, who has the money to fill their tank now days? (please, let me know so I can bum some $$ off em lol)
two, Yeah, you can pump exactly 22 gallons, but, if your trucks like mine, you tend to not trust the gas gauge to be completely accurate. So are you positive you used 11 gallons when it's pointing at the half mark? On 2000 mile trips, that 1/2-1 gallon varience can mean the differance between making it there with gas to spare, and having to walk the last 100 miles.
I put just under 5 gallons in mine and sometimes ti goes to just over a quarter, sometimes just under, but it always drops down to the left of the E in 10 minutes of driving, but then it just sits there for like 3 days of driving.
Yes, I do need a new guage or probe or somethinganother
Yes, I agree, running your engine dry is a BAD idea, I thought I was pretty clear, but I guess not... :.( run it until it make it's first "burp", you'll still have fuel in the pump, lines, and injectors, IF you shut it off right away. Doing this two or three times isn't going to kill the truck, and if it does, you were going to have issues any ways soon.
there's two small problems with that.
one, who has the money to fill their tank now days? (please, let me know so I can bum some $$ off em
lol)two, Yeah, you can pump exactly 22 gallons, but, if your trucks like mine, you tend to not trust the gas gauge to be completely accurate. So are you positive you used 11 gallons when it's pointing at the half mark? On 2000 mile trips, that 1/2-1 gallon varience can mean the differance between making it there with gas to spare, and having to walk the last 100 miles.
I put just under 5 gallons in mine and sometimes ti goes to just over a quarter, sometimes just under, but it always drops down to the left of the E in 10 minutes of driving, but then it just sits there for like 3 days of driving.
Yes, I do need a new guage or probe or somethinganother
Yes, I agree, running your engine dry is a BAD idea, I thought I was pretty clear, but I guess not... :.( run it until it make it's first "burp", you'll still have fuel in the pump, lines, and injectors, IF you shut it off right away. Doing this two or three times isn't going to kill the truck, and if it does, you were going to have issues any ways soon.
Theres another possible way!
Professional
Joined: Oct 2009
Posts: 143
Likes: 0
ofcourse I don't actually light it
