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Guides, tips, and in-depth articles about fuel economy, gas mileage calculation, and saving money on fuel.
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Showing guides 46-60 of 87 (page 4 of 6).
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EPA Plug-in Hybrid Label Explained (MPGe, Gas MPG, Range)
Plug-in hybrids (PHEVs) can run on electricity for some miles and then switch to gasoline. EPA provides official plug-in hybrid label documentation (interactive and text versions) to...
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Estimated Annual Fuel Cost on the EPA Label: Assumptions and How to Adjust
The EPA label’s Estimated Annual Fuel Cost is a standardized estimate intended for comparisons across vehicles. EPA explains in its interactive label that the estimate is based on...
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EV Charging Cost Per Mile: How to Calculate It (Home and Public)
To estimate EV charging cost per mile, you need two inputs: energy use (often shown as kWh per 100 miles ) and your electricity price (in $/kWh). Multiply them (with the right unit...
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EV Efficiency Metrics: MPGe, kWh/100 Miles, Range, and Cost
EV shopping gets easier once you separate four ideas: energy efficiency (MPGe), electricity use (kWh per 100 miles), range (miles per charge), and cost (dollars per mile). The EPA label...
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EV Range in Cold Weather: What Changes and How to Plan
Cold weather can reduce EV range because winter driving often requires cabin heat and changes battery and road conditions. FuelEconomy.gov provides a cold-weather baseline and EV tips...
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Flex Fuel Vehicles: How to Tell If You Can Use E85
E85 is a high-ethanol fuel that can only be used in flex-fuel vehicles (FFVs) . FuelEconomy.gov provides a practical checklist for identifying an FFV (labels, fuel door markings, and...
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Fuel Cost per 100 Miles: A Better Way to Compare Cars
“Cost per 100 miles” translates fuel economy into dollars. It is simple: take your gas price and your MPG and compute how much you spend to go 100 miles. This works especially well...
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Fuel Economy in Cold Weather: Why MPG Drops (and What to Do)
Cold weather can reduce fuel economy for gas, diesel, hybrids, and EVs — but the mechanisms differ. FuelEconomy.gov summarizes the real-world impacts and provides practical steps...
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Fuel Economy in Hot Weather: AC, Heat, and Real-World MPG
Hot weather can reduce fuel economy for both gas cars and EVs, but the reasons differ. FuelEconomy.gov summarizes that air conditioning can significantly reduce MPG in city driving and...
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Fuel Economy Maintenance Checklist: Tires, Oil, Sensors, and Simple Checks
Maintenance is not the only driver of MPG, but it can prevent efficiency losses from stacking over time. FuelEconomy.gov (DOE) lists specific maintenance items that affect fuel economy,...
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Fuel Economy Myths: What’s Fact vs Fiction (DOE)
There’s no shortage of “MPG hacks” online. DOE publishes a “Fuel Economy Fact and Fiction” guide that addresses common claims about fuel-saving techniques. The big theme: a few basics...
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Fuel Economy vs Greenhouse Gas Ratings: How the EPA Label Connects Them
The EPA label includes both fuel economy (MPG) and a Greenhouse Gas (GHG) rating on a 1–10 scale. For gasoline vehicles, these are closely linked because tailpipe CO 2 emissions...
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FuelEconomy.gov API Guide: Pull MPG and Cost Data
FuelEconomy.gov provides XML web services endpoints that let you fetch vehicle menus (year, make, model) and vehicle details programmatically. This is useful if you're building a...
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Gallons per 100 Miles Explained (Fuel Consumption Rate)
Gallons per 100 miles is a fuel consumption metric shown on the EPA label for gasoline vehicles. Unlike MPG, it maps directly to fuel used and therefore to fuel cost . Lower is better....
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Gas vs Electric Cost Per Mile: How to Compare Fairly
A fair “gas vs EV” comparison uses the same unit on both sides: dollars per mile (or dollars per 100 miles). For gasoline, that’s gas price divided by MPG. For EVs, it’s electricity...
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