Join Date: Feb 2007
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Re: Renault Laguna II - Phase 1 - Engines - Average MPG from 1.9 DCi Engine
How did you calculate the mpg. Was it by brim to brim filling or going by the onboard computer.
Remember the onboard computer does not measure actual fuel flow - it extrapulates its figures based on electrical signals in the fuel sytem. So by adding any additional electronic gizzmos into the system the computer figures are likely to be out of kilter.
It would be nice to see actual brim-to-brim calulations for comfirmation and if it's as good as you say letting other members know the exact make and model of the chip would be a great help.
Currently in madnoel10's garage:
Honda Civic 1.4l