Bad gas mileage is seen as a negative for obvious reasons, and those that have higher mpg figures are preferred: but what is MPG? MPG means “miles per gallon” and is the standard way to measure gas mileage for cars and trucks in the Nigeria, stating how many miles a vehicle can drive on a gallon of gas.
The EPA publishes three MPG figures to indicate the average gas mileage of a car – its fuel consumption in the city, on the highway, and a combination of the two. EPA testing is complicated, and you can read more about the EPA test procedures here. For now, let’s look at what gas mileage figures is considered bad for your type of car and which problems cause very poor gas mileage.
The EPA’s city/highway/combined MPG figures vary according to vehicle type. A gas-powered SUV will be far heavier on fuel than a compact car, hybrid, or diesel. What is considered poor fuel economy for a compact car might be excellent for an SUV.
Large, heavy gas-powered trucks and SUVs are generally considered cars with ‘bad’ MPG figures due to their large, heavy structures and large displacement engines that offer high outputs.
The same is true for muscle cars or supercars that prioritize performance over frugality.
Here is an example of how much city/highway/combined mileage figures can vary:
|MAKE AND MODEL||BODY STYLE||ENGINE||DRIVETRAI||MPG|
|Cadillac Escalade||SUV||6.2L V8 gas||4WD||13/19/16|
|Ford F-150||Truck||2.7L Turbo V6 gas||2WD||20/26/22|
|Acura MDX||SUV||3.5L V6 gas||FWD||19/26/22|
|Nissan Versa||Sedan||1.6L inline-4 gas||FWD||32/40/35|
|Mitsubishi Mirage||Hatch||1.2L inline-3 gas||FWD||36/43/39|
|Hyundai Elantra Hybrid||Sedan||1.6L inline-4 hybrid||FWD||53/56/54|
Here are the main causes of bad gas mileage/mpg figures:
You can’t do much to get good fuel economy out of a gas guzzler like the Cadillac Escalade and it’s ilk, but you can optimize its fuel efficiency. Pay close attention to the list above – it can save you some gas money. A properly maintained car and sedate driving will reward you with better overall economy.
Diesel and electric or hybrid vehicles like the Hyundai Elantra Hybrid are more economical than gas vehicles and might be an option, too, especially if you drive long distances.
If your car suddenly starts using more fuel, there is probably a mechanical problem with the ignition or fueling system that should be checked out by a competent mechanic. Don’t ignore the problem, as it could harm your engine. Keep in mind that sudden changes in usage patterns and the weather also affect fuel economy.
Your new car’s Monroney window sticker shows the EPA-estimated MPG figures. You can also compare fuel economy on the EPA’s fueleconomy.gov website. For each car, your expected annual fuel costs will be shown, as well as how much more or less the car will cost to fuel compared to the average new vehicle.
An engine uses the most fuel and is at its most inefficient when it’s cold. A properly maintained modern car with the correct coolant grade and oil for your state’s weather should not need more than 30 seconds of idling before you can drive off, even on a cold morning. Don’t work the engine hard while it’s cold, but don’t idle it for a long time either.
A cold engine and transmission are inefficient and take longer to warm up in cold weather. This is exacerbated by frequent short trips, preventing them from ever warming up properly. Additionally, cold-climate equipment like interior and seat heaters and defrosters draw power that increases fuel use. In snowy conditions, winter tires with a higher rolling resistance, reduced tire grip, snow buildup, and the use of 4×4 reduce economy too.
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