For every 10% ethanol added to the fuel, a mileage loss of 3% should be expected.
Improving batteries to permit them to be given an added charge when a hybrid is garaged, ordinarily at night, can substantially improve mileage, because it can permit hybrids to use battery power alone for the first 10-30 miles.
The D stands for diesel, which represents 30-50% of the European market simply for its markedly improved fuel mileage figures, when compared to regular fuel.
How to save money by improving fuel economy and performance in any vehicle by up to 30% or more without expensive gadgets. Gas Mileage Bible is a must for anyone who drives a car. Simple scientific explanations on what causes losses and gains in fuel economy. Clear-cut gas-saving solutions, breaking down into straightforward categories: "no tech", "low tech", and "high tech".
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