Your Car's Gas Mileage is a Lie
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Date: 2020-06-30
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Comments and reviews: 9
SomeTechBloke
Man theres too many factors for gas mileage, Key thing is how you drive and where you drive, Basically I dont go fast these days but i do like going on twisty roads, In the UK its uncommon to have a big engine on a modern car unfortunately and in my experience its better to own a bigger engine, and Turbos are not some save gas wonder, especially for city usage, I used to have a Laguna V6 with the VQ35 engine, 240BHP version, got me 24 MPG (UK) Switched to a 1. 6 turbo juke nismo that was supposed to get me 30 MPG (UK) i got 26 on my best journeys and 24 on my best with the Eco mode, Yup, problem was that highway efficiency that i needed sucked, constantly at 2400-2800 RPM and the turbo is consistently used and in its least efficent band, Now i have a jag XE with the v6 supercharged, If you are not being a jerk with the supercharger, The engine is gonna be efficient, basically dont race the thing as superchargers use more power on load, I passed the 40 MPG (UK) mark on my best journey that i was not expecting and im hovering at 800 RPM. My average journey is about 30 MPG (UK) so im happy, And as the tank is bigger ill fill up less anyway so if i know where im going i dont need to carry an heavy load of fuel.
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Man theres too many factors for gas mileage, Key thing is how you drive and where you drive, Basically I dont go fast these days but i do like going on twisty roads, In the UK its uncommon to have a big engine on a modern car unfortunately and in my experience its better to own a bigger engine, and Turbos are not some save gas wonder, especially for city usage, I used to have a Laguna V6 with the VQ35 engine, 240BHP version, got me 24 MPG (UK) Switched to a 1. 6 turbo juke nismo that was supposed to get me 30 MPG (UK) i got 26 on my best journeys and 24 on my best with the Eco mode, Yup, problem was that highway efficiency that i needed sucked, constantly at 2400-2800 RPM and the turbo is consistently used and in its least efficent band, Now i have a jag XE with the v6 supercharged, If you are not being a jerk with the supercharger, The engine is gonna be efficient, basically dont race the thing as superchargers use more power on load, I passed the 40 MPG (UK) mark on my best journey that i was not expecting and im hovering at 800 RPM. My average journey is about 30 MPG (UK) so im happy, And as the tank is bigger ill fill up less anyway so if i know where im going i dont need to carry an heavy load of fuel.
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Steven
I've had cars through the years that have run the gambit of either doing noticeably better than EPA estimates and some did noticeably worse. My local driving is rarely pure city driving so I tend to do a bit better than the city estimates. Of my last three cars, a 2006 Honda Civic, a 2013 Toyota Rav4, and a 2016 Mustang GT convertible, my local driving was in a range that would lead me to believe that probably, I'm getting pretty close to the EPA city estimates. Of the multi day road trips where I'm running the interstate freeways most of the day, the Civic and Rav4 have always been 1 to 3 mpg short of the EPA highway estimates. Every once in a while, they'll get up to the EPA numbers but most of the time not. Ironically, I took my Mustang GT on a 3500 mile road trip summer of 2018 and it averaged 27. 2 mpg overall for the trip when the EPA said it would only get 25. My high tank on that trip was just over 29 mpg, my calculations. The computer said I was averaging 30! It never returned less than 26 on any tank that was primarily interstate cruising. So go figure!
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I've had cars through the years that have run the gambit of either doing noticeably better than EPA estimates and some did noticeably worse. My local driving is rarely pure city driving so I tend to do a bit better than the city estimates. Of my last three cars, a 2006 Honda Civic, a 2013 Toyota Rav4, and a 2016 Mustang GT convertible, my local driving was in a range that would lead me to believe that probably, I'm getting pretty close to the EPA city estimates. Of the multi day road trips where I'm running the interstate freeways most of the day, the Civic and Rav4 have always been 1 to 3 mpg short of the EPA highway estimates. Every once in a while, they'll get up to the EPA numbers but most of the time not. Ironically, I took my Mustang GT on a 3500 mile road trip summer of 2018 and it averaged 27. 2 mpg overall for the trip when the EPA said it would only get 25. My high tank on that trip was just over 29 mpg, my calculations. The computer said I was averaging 30! It never returned less than 26 on any tank that was primarily interstate cruising. So go figure!
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Boomkikker
This is pretty much what they did in europe 2. but they changed the test to be more real world the max speed was 100km now its 130 with more variation to simulate real world conditions this partly solved the problem. i noticed my hyundai I30 can get the great factory gas milage but only under optimal conditions. constant speed on 80km or 100km with cruise control on without the acceleration part will yield you the 5liters per 100 KM that the manufacturer claimed: D. but under optimal real world conditions it is more 5. 6-6. 6liters 6-6. 2 liters with e5 95 fuel. 5. 8 it can do with euro 98 fuel without ethanol it is more fuel efficient. e10 95 with ethanol gets more 6. 2-6. 6l 100km. E10 burns less efficient if the car is has been parked for a while. but burns more efficient when its running over longer distances without being parked longer then a day or 2-4 it stays optimal.
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This is pretty much what they did in europe 2. but they changed the test to be more real world the max speed was 100km now its 130 with more variation to simulate real world conditions this partly solved the problem. i noticed my hyundai I30 can get the great factory gas milage but only under optimal conditions. constant speed on 80km or 100km with cruise control on without the acceleration part will yield you the 5liters per 100 KM that the manufacturer claimed: D. but under optimal real world conditions it is more 5. 6-6. 6liters 6-6. 2 liters with e5 95 fuel. 5. 8 it can do with euro 98 fuel without ethanol it is more fuel efficient. e10 95 with ethanol gets more 6. 2-6. 6l 100km. E10 burns less efficient if the car is has been parked for a while. but burns more efficient when its running over longer distances without being parked longer then a day or 2-4 it stays optimal.
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Nathan
In all fairness there are so many variables that affect fuel economy: altitude, the condition of the road, temperature, fuel quality, etc.
And city mileage is the most unpredictable and so the most worthless. It's not anything you can rate with any degree of accuracy since city driving has too many variables: traffic, construction, how long the lights take to change, road design, pedestrians, time of day, etc.
At the end of the day how you drive is the biggest factor of all. Take two drivers with the exact same car driving the exact same route and they can get very different rates. Someone with a heavy foot can get half the mileage of someone with a light one.
So yeah, car manufacturers will fudge the numbers since there's an inherent conflict of interest but let's keep in mind that it's anything but a precise science because every region can have different variables.
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In all fairness there are so many variables that affect fuel economy: altitude, the condition of the road, temperature, fuel quality, etc.
And city mileage is the most unpredictable and so the most worthless. It's not anything you can rate with any degree of accuracy since city driving has too many variables: traffic, construction, how long the lights take to change, road design, pedestrians, time of day, etc.
At the end of the day how you drive is the biggest factor of all. Take two drivers with the exact same car driving the exact same route and they can get very different rates. Someone with a heavy foot can get half the mileage of someone with a light one.
So yeah, car manufacturers will fudge the numbers since there's an inherent conflict of interest but let's keep in mind that it's anything but a precise science because every region can have different variables.
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drwisdom1
The biggest variable in a vehicle's mpg is the driver. The official mpg for vehicles has never been that trustworthy. But in general if you compared two vehicles, the one with the lower official mpg uses more gas than the one with the higher official mpg. Historically, the real world mpg was always less than the official mpg. But my newest car was supposed to get 43mpg highway and I get 47mpg around town and average 55mpg doing 75mph on the interstate (I track every drop of fuel using fuelly. com. So it turns out the official mpg numbers are wrong in both directions.
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The biggest variable in a vehicle's mpg is the driver. The official mpg for vehicles has never been that trustworthy. But in general if you compared two vehicles, the one with the lower official mpg uses more gas than the one with the higher official mpg. Historically, the real world mpg was always less than the official mpg. But my newest car was supposed to get 43mpg highway and I get 47mpg around town and average 55mpg doing 75mph on the interstate (I track every drop of fuel using fuelly. com. So it turns out the official mpg numbers are wrong in both directions.
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standalee
RELAX gentleladies! No agency could test the gasoline delivered to your town vs. elevation vs. the poor maintenance vs. your tire pressure vs. what you put in your vehicle besides yourself vs. your heavy foot! Do they test in best possible scenarios for sales? Probably! When I drive the wifes 2. 0 L you know the pedal is to the metal as opposed to the v8 in my truck. Don't disregard science/medicine if you don't know the details! But do listen to Kilmer for killer (good) advise! PEACE! ;)
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RELAX gentleladies! No agency could test the gasoline delivered to your town vs. elevation vs. the poor maintenance vs. your tire pressure vs. what you put in your vehicle besides yourself vs. your heavy foot! Do they test in best possible scenarios for sales? Probably! When I drive the wifes 2. 0 L you know the pedal is to the metal as opposed to the v8 in my truck. Don't disregard science/medicine if you don't know the details! But do listen to Kilmer for killer (good) advise! PEACE! ;)
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PRINCE
Hey Scotty I just got my first car my uncle bought it for me they planning on giving it to me on my 18th birthday on 3 July it s a 2005 Honda Civic LX special edition bodies good under 100, 000 miles seats everything s good whoever had it took really good care of it and it looks like they barely use it AC still blow nice and cool my uncle knows a lot about cars and he told me it is a very good first car and I also wanted to get your opinion on that it s a four-door
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Hey Scotty I just got my first car my uncle bought it for me they planning on giving it to me on my 18th birthday on 3 July it s a 2005 Honda Civic LX special edition bodies good under 100, 000 miles seats everything s good whoever had it took really good care of it and it looks like they barely use it AC still blow nice and cool my uncle knows a lot about cars and he told me it is a very good first car and I also wanted to get your opinion on that it s a four-door
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wildtrex
Best way to know exactly how much gas milage your car is giving, is to fill up your tank, reset your trip meter, drive your car till the tank is 1/4th used or at least 50 miles or 100. Fill up again and this time note down how much gas you put in exactly. Then divide the miles on your trip meter with the gallons of gas you just filled in. Let's say your drove 100 miles and then filled up 5. 5 gallons. Dividing 100 with 5. 5 you will get 18. 18 miles per gallon.
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Best way to know exactly how much gas milage your car is giving, is to fill up your tank, reset your trip meter, drive your car till the tank is 1/4th used or at least 50 miles or 100. Fill up again and this time note down how much gas you put in exactly. Then divide the miles on your trip meter with the gallons of gas you just filled in. Let's say your drove 100 miles and then filled up 5. 5 gallons. Dividing 100 with 5. 5 you will get 18. 18 miles per gallon.
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michael
I've been a Mechanic for 45 years, and a Maintenance Man working for apartment complexes for 20 years. Vehicles aren't the only things that are junk. However I must say that last week
I replaced an Evaporator Unit made by Chrysler 50 years ago, that finally bit the dust. Planned Obsolescence has been well refined in the past half century. I can just imagine some engineer
who gets paid a 100, 000 bonus for figuring a way to make some device fail on day 91
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I've been a Mechanic for 45 years, and a Maintenance Man working for apartment complexes for 20 years. Vehicles aren't the only things that are junk. However I must say that last week
I replaced an Evaporator Unit made by Chrysler 50 years ago, that finally bit the dust. Planned Obsolescence has been well refined in the past half century. I can just imagine some engineer
who gets paid a 100, 000 bonus for figuring a way to make some device fail on day 91
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