The new oil cooled engine of the Pulsar 250F was a big deal for Bajaj, making a big deal out of improved performance and efficiency. That has led to discussions among riders about whether it actually lives up to these promises. Others say the engine is smooth, and that it doesn't vibrate as much as Pulsars of old. Some say the power delivery seems tame and doesn't have the exciting character of prior models. Debates rage over real world fuel efficiency, with some claiming impressive figures and others saying it isn't hugely better than air cooled engines. Another hot topic is long term reliability, as the technology is relatively new for Bajaj in this segment. Oil-cooling, compared to traditional air-cooling systems, is also another point of contention among owners and potential buyers; maintenance costs and complexity are also issues.