The rule of thumb with yellow or orange lights is take it to a service centre or reliable mechanic to sort it out. No need to panic, I had a faulty EMS which went for some time before being replaced.
Sometimes, such lights can be corrected by simply disconnecting and reconnecting the battery, to reset the EMS.
It may be the oil, or something else, such as a low battery or faulty sensor.
OTOH, any red light not associated with things such as the seat-belt or handbrake is the time to stop driving immediately, to prevent further damage.