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Saturday 20th December 2014
Max 8°C | Min 5°C

What's the most cost-effective speed to drive at?

Question

What is the most economical speed to drive at?
Mark, Kensington

Answer

** Definitive **
Name: James, Essex
Qualification: 20 years as a cab driver
Answer: 56 mph is the most economical. Much faster than that then your turbo kicks in and you use more fuel. 30% more between 50 and 7-mph.

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