Report suggests that not following good eco-driving practices can lead to a reduction in on-road fuel economy of up to about 45% in total
Green Car Congress
SEPTEMBER 8, 2011
The types of vehicles consumers select has by far the most dominant impact on on-road fuel economy—the best vehicle currently available for sale in the US is nine times more fuel efficient than the worst vehicle. Improper engine oil. loading). (On Level Factor Effect. Out-of-tune engine. 4–40%. 3–5%. 1–2%.
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