I have no idea why, but I was driving along, and suddenly the 'check engine' light came on.
I phoned hubby, and he asked me to check over a few things, and said it might just be a sensor, because I had driven a few miles with the light on, and if it was serious, like an oil problem, then he says that the engine would be destroyed by now.
I must remember that. When the light comes on next time, I will be sure not to just carry on driving, as it is possible that sometimes it is something really wrong that will cause damage.