Teams used the session to give both their primary and co-driver seat time, as well as taking the chance to complete driver change pit stop practice.
The Chaz Mostert/Lee Holdsworth #25 Mobil 1 Optus Mustang was third, 0.2954s down, with Cameron Hill/Jaylyn Robotham (#35 Truck Assist Camaro) and Scott Pye/Warren Luff (#20 Toyota Forklifts Camaro) rounding out the top five.
The pole-sitting #9 Coca-Cola Camaro of Will Brown/Jack Perkins was 21st, with the Brodie Kostecki/David Russell entry eighth.
Drivers and teams were again greeted to warm conditions in Melbourne, with Pye setting the early running with a 1:09.6005s.
Five-time Bathurst winner Tander was quickest next time by with a 1:09.2036s before Reynolds took over and clocked a 1:09.1334s.
As cars cycled around the historic 3.1km circuit, teams completed pit stop rehearsal, completing refuelling, brake pad changes, and driver change practice.
That didn’t ensure a lack of action with Jayden Ojeda (#34 Truck Assist Camaro) and Estre both encountering offs.
Anton De Pasquale/Tony D’Alberto (#11 Shell V-Power Mustang) were sixth ahead of Jack Le Brocq/Ojeda, Kostecki/Russell, Cam Waters/James Moffat (#6 Monster Energy Mustang), and James Courtney/Zak Best (#5 Snowy River Caravans Mustang) rounding out the top 10.