10% FUEL SAVING ON AVERAGE
Below is a fuel economy report from the owner of a 2014 Mazda 3 equipped with Surbo. 22 km/l with Surbo in mixed driving (1/3 urban plus 2/3 highway) vs 17.5 km/l as claimed by car manufacturer for highway driving. Even when driving hard with Surbo and revving, the result was 17.5 km/l.
The Surbo gives more energy, enabling quick acceleration towards the more economical higher gears in a shorter time. Most customers report an overall improvement of 10% in economy. If driving on highways, the vehicle easily exceeds speed limits due to the higher torque, so less of the accelerator needs to be pressed. For automatic cars, rolling distance is longer with foot off accelerator, with engine rpm hardly dropping due to the Surbo system's air accumulation. The following cars have been made more frugal with Surbo: