When driving your car why does air conditioning use more petrol?


Posted May 23rd, 2009 by admin 12 Comments »
car
Ed asked:


I know that when the engine is running the alternator generates electricity which is used to power the electrics, but if you are on the motorway doing 70mph, I would have thought no extra power was required? Also if you switch on all the car electrics when stationery, you don’t hear the engine reving more to produce more electricity. Can anyone explain?

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Posted in Maintenance & Repairs | 12 Comments »

What is the most economic car for a daily 120 mile motorway commute?


Posted May 12th, 2009 by admin 7 Comments »
car
Claire13 asked:


I’m currently looking to either a) buy a second hand car or b) get a company car to use to commute 60 miles (each way) to work. It is mainly motorway driving and as I have no idea about cars I’d be grateful if you could give me some pointers as to what would be the most economical.

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Posted in Commuting | 7 Comments »