Hey there!
I'm from Prtugal, I have a Ford Fiesta 1.8D NA engine from 1992 like this:
http://images.quebarato.com.br/photo.../F/8F79F_1.jpg
It is a kinda hipermiler does an unpreocupied average 5l/100km, which is a good average for a car like that, no mods at all!
What ideas do you give me so I can improve mileage?
It has no undertray panels.
I have been using all the hipermiler tips and the fuel consumption rides about 4.8 and 5l/100km.
The use of alternator cut off, even with belt. Use of undertray. Some examples no?
Thanks!