Quote:
Originally Posted by talkingcars
As per post 62.
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There are lots of reasons for low mpg.
Lots of roundabouts is obviously 1 of them.
My daily commute is a mix of winding B roads with a 2 mile blast of duel carriageway. My 180 averaged 28mpg on the commute.
My ZS replacement a V6 Freelander does bang on 20mpg on the same route. It uses considerably more fuel than the ZS even though it's powered by the same engine. The Freelander is coupled to an auto box and weighs some 400 Kg's more than my old ZS180. Thus affecting the fuel consumption some what.
As for the breathing mods affecting fuel efficiency. In theory anything that helps the engine breath, in and out will improve economy. Sadly the extra performance is used by the driver. This generally makes economy worse.