Patent ID: 8554513

Claim:
A method for testing and proving fuel efficiency improvements caused by a modification of at least two operating parameters in a vehicle, the method comprising: installing a telematic device in each of a first plurality of vehicles and in each of a second plurality of vehicles, each telematic device configured to receive fuel consumption data broadcast by a vehicle's engine control module; collecting baseline fuel consumption data for the first and second pluralities of vehicles during a first time period, the first time period acting as a baseline or control period; modifying the at least two operating parameters in only the second plurality of vehicles after the first time period and during a second time period, such that the first plurality of vehicles acts as a control group; collecting test fuel consumption data for the first and second pluralities of vehicles during the second time period; and analyzing baseline fuel consumption data and test fuel consumption data for the first plurality of vehicles and the second plurality of vehicles to determine fuel efficiency improvements in the second plurality of vehicles caused by modifying the at least two operating parameters, wherein modifying the at least two operating parameters includes changing one or more vehicle lubricants used in the second plurality of vehicles.