[Magdalen] Automobiliattitude.

[M J _Mike_ Logsdon]

>>>My check engine light comes on onlywhen I need an oil change in my '08 Toyota Corolla , a pre-set that gets reset when I get an oil change. My owners manual says that is the only purpose of it. 
Lynn<<<

https://en.wikipedia.org/wiki/Check_engine_light

Apparently, there's a variety of reasons, depending on make and model.  The only two times mine has come on ('05 Kia Rio), it's meant trouble.  Hopefully, this time isn't.