Hi,
I am thinking of buying a Focus and was reading a Ford brochure. They do two economical 1.6 diesels: I think one is a Zetec and the other is the Econetic. The econetic does slightly more mpg. How does the econetic achieve the better figure? I think it's the same engine, so is the engine tweaked in econetic or is it that they have reduced the weight of the car? I notice that the econetic does not have a spare wheel. Would the weight saved from loosing the spare wheel and a few other cuts here and there be enough to account for the difference?
I've read a number of cars do not have spare wheels now. Is this just penny pinching by the manufacturers? What do they supply instead: is it something like that holts tyre spray I have seen on the shelf in Halfords?
I suppose a spray is useful if you cannot get the nuts loose (been there, done that) but surely there are sometimes when a spray just won't do and you need a spare wheel?
TIA