What makes an engine happy? What makes an engine sad? It all depends what happens And that time of day you've had What makes an engine happy Would make an engine sad So many things can make your day A good one or a bad Chuffing children to the sea Will make an engine smile Or racing through the countryside For mile on mile on mile Chuffing really useful Will make an engine's day Or going somewhere different Making new friends on the way What makes an engine happy? What makes an engine sad? It's all depends what happens And that time of day you've had What makes an engine happy Would make an engine sad So many things can make your day A good one or a bad Running out of water Yes, it makes an engine sad Breaking down or being late Makes an engine feel so bad Getting stuck on Gordon's Hill Won't please Sir Topham Hatt But don't despair 'cause everyone Has days can go like that What makes an engine happy? What makes an engine sad? It's all depends what happens And that time of day you've had What makes an engine happy Would make an engine sad So many things can make your day A good one or a bad What makes an engine happy? What makes an engine sad? It's all depends what happens And that time of day you've had What makes an engine happy Would make an engine sad So many things can make your day A good one or a bad