too much consuming of gas
Hi muneeb! Obviously you need to get the vehicle looked over by a mechanic to rule out mechanical issues, but here's a great look at the factors effecting fuel mileage to otherwise help you get the most out of a gallon of gas. Good luck! http://www.omninerd.com/2006/07/16/articles/57
start with a complete tune up.
Search Toyota Previa Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Toyota Previa Experts