Smartalex replied on 01/03/2013 21:19
Posted on 01/03/2013 21:19
Has anyone used one of these plug in diesel tuning boxes which is supposed to increase MPG by 15 - 20%.
According to the hype it will also increase power and torque.
Other questions: is it legal, does it increase your insurance?
If anyone has used these and can give any valid answers to the above queries or has any advice I would be very interested to hear.
Smartalex
Caravanner from East Yorkshire