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Spritmonitor is a german website that collects and delivers information about the fuel consumption of vehicles under real-life conditions. The data base is provided by the users of the website themselves (crowdsourcing) who log the fuel ups of their vehicles in the system.

History
The website was created by Thomas Fischl and Dominik Fisch as a side project to their study of computer science at the University of Passau, Germany. Initially, the project was known under the name „Consumption Tables“ and was renamed to „Spritmonitor“ after a testing phase. The website is operated and owned by the Fisch und Fischl GmbH company which was founded in 2008.

Functions
Spritmonitor offers two main functions:

First, it is possible for a car owner to log and track fuel up data and all vehicle based expenses in the system. Based on this data many different analyses can be performed (e.g., fuel consumption depending on season, kind of fuel, used tires, etc.). Spritmonitor can be used on the road with the corresponding iPhone-, Android-, and Windows Phone-Apps as well as with the the mobile version of the website.

Second, the data base entries of Spritmonitor users can be viewed and analysed by others. Thereby, future car owners do not only have to rely on the fuel consumption published by car manufacturers but they can also get information about the to be expected real-life fuel consumption of a vehicle before buying it.

Use in scientific studies and tests
The Spritmonitor data base has reached such a significance in size and quality that it can be used in scientific studies. The ICCT uses the data set in its annual report “From Laboratory To Road”  as well as Transport and Environment in its annual study “Mind The Gap”. Also the Deutsche Umwelthilfe refers to Spritmonitor in its publication “Verbrauchsabweichungen in Deutschland und den USA”.

Besides those scientific studies, the Spritmonitor data is also used in vehicles tests of different media.

Figures
The Spritmonitor data base contains 580,000 vehicles of 400,000 users. All the users together logged over 22 million fuel ups which correspond to a driven distance of 11 billion kilometres.