The Discover 125T Disc is advertised for impressive fuel efficiency figures by Bajaj, which often claim figures around 68 kmpl under ideal conditions. But owners' real world experiences appear to differ greatly. This has resulted in debate about the truth of manufacturer claims versus actual performance. Fuel efficiency is influenced greatly by riding style, traffic conditions, maintenance, and even fuel quality. Some say they get close to the claimed figures, others well short. The industry has been discussing the ethics of advertising 'ideal' fuel efficiency numbers and whether there should be more standardized, real world testing. In fact, as the Discover 125T Disc is a popular bike among buyers who choose it for its fuel economy promise (a key consideration in the buying decision for budget conscious customers), the topic is especially sensitive.