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By some estimates, an automobile with a 3-liter engine burns 0.4 gallons of gas per hour of idling, and generates a little over a pound of CO² every 10 minutes. [6] Idle reduction is particularly significant for vehicles in heavy traffic and trucks at the estimated 5,000 truck stops in the US. [7]
The DOE says that idling for more than 10 seconds — which most people do — uses more fuel and produces more emissions that contribute to smog and climate change than stopping and restarting ...
Fuel economy at various driving speeds. Maintaining an efficient speed is an important factor in fuel efficiency. [9] [10] Optimal efficiency can be expected while cruising at a steady speed and with the transmission in the highest gear (see Choice of gear, below). The optimal speed varies with the type of vehicle, although it is usually ...
Find Out: 5 Used Cars With the Best Gas Mileage To Buy in 2025 Auto expert Chris Pyle from JustAnswer recently shared some straight talk about which 2025 models might leave both your wallet and ...
“The bad part though, it is designed to be off-road and most [people] do not do that. So, you are paying for features never used. A different and cheaper SUV to stay on the highway is better.”
A Ford Excursion SUV next to a Toyota Camry compact. Sport utility vehicles (SUVs) have been criticized for a variety of environmental and automotive safety reasons. The rise in production and marketing of SUVs in the 2010s and 2020s by auto manufacturers has resulted in over 80% of all new car sales in the United States being SUVs or light trucks by October 2021. [1]
If you’re looking for a midsize hybrid SUV with great gas mileage, check out the Hyundai Santa Fe Hybrid. It starts at $25,000. It starts at $25,000. The Santa Fe Hybrid will get you 30 to 36 mpg.
Idle speed, sometimes simply called "idle", is the rotational speed an engine runs at when the engine is idling, that is when the engine is uncoupled from the drivetrain and the throttle pedal is not depressed. In combustion engines, idle speed is generally measured in revolutions per minute (rpm) of the crankshaft.