Brisbane and Gold Coast motorists using the M1 motorway will need to drop their speeds by 10 kilometres from today or face fines.

The new rule applies all the way down to the Gold Coast, 110 kilometre per hour zones being lowered to 100, and 100 kilometre per hour zones reset at 90 kilometres per hour.

Queensland transport minister Mark Daily told reporters yesterday that there would be no grace period for those caught speeding.