car diagnostic tool change driver's driving habits
 

With oil price climbing, more and more people worry,
I think a lot of fuel-efficient ways, but no ideal.
Colleague told me, the biggest fuel economy is the driver's driving habits.
He recommended me to buy a ECU Chip Tunning tool.
With this tool can look fuel consumption at any time.
Both save money and environmental protection.

what do you think about it?

any ideas?