Is it hurtful to a car (engine, transmission, other moving components) to let it sit for periods of time? For example, things have not gone as planned the past two years and the roadrunner has had to sit month's at a time. Money, other vehicle issues, and life has gotten in the way. This has caused it to sit untouched for weeks or months at a time. The car is parked in an attached garage. It is not climate controlled but I almost always have a vent fan running. A friend/ neighbor and I were discussing this and he says that I'm doing more harm than good by letting the car sit for long periods of time. I know it's not good for vehicles to sit, but the car has to take a backseat to everything else. It's not a primary vehicle, nor a necessity to have driveable. And I'm not going to spend grocery money on it when money is tight. Please give me your opinions on whether I'm doing way wrong or if it's not that big of an ordeal.