Historical clue formulations

• Drinks at a pub — 2026-08-13
• They keep the wheels turning — 2025-06-19
• Connections for car wheels — 2023-01-09
• Three or more on a semi — 2022-04-27
• Couple on the road? — 2018-11-17
• Toll units for semis — 2018-06-25
• Highway tolls may be based on the number of them — 2017-10-16
• Wheel connectors — 2016-12-13
• Trucker's toll factor — 2015-09-30
• Ones keeping the wheels turning? — 2014-06-02
• Car rods — 2012-01-09
• Connections for car wheels — 2010-11-01
• Some toll units — 2007-04-08
• Wheel turners — 2004-02-16
• Cars' bars — 2002-10-09
• Bars on wheels — 2001-05-05
• Wheel turners — 2000-05-09
• Highway toll units — 1998-09-19
• Turning points — 1994-08-19