Randle sets the pace in Friday practice

Thomas Randle has led a Tickford Racing one-two in Practice 2 at the VAILO Adelaide 500, with the title contenders encountering a mixed bag.

Randle powered his #55 Castrol Mustang to top spot ahead of the final runs, before stamping his authority on the field with a time 0.12s quicker than his closest rival.

That proved to be Tickford teammate Cam Waters (#43 Monster Energy Mustang), with Will Brown (#9 Coca-Cola Camaro), Chaz Mostert (#25 Mobil 1 Optus Mustang) and David Reynolds (#26 Penrite Mustang) rounding out the top five.

Both Red Bull Ampol Camaros remained in the lane for the final minutes, with Shane van Gisbergen (#97 Camaro) and Broc Feeney (#88 Camaro) dropping to 10th and 22nd by the chequered flag.

Feeney's car is set for an engine change before ARMOR ALL Qualifying, with van Gisbergen's car also picking up a suspected steering rack issue throughout the 30-minute hit-out.

Drivers were greeted by dry conditions following Thursday’s damp Practice 1, with Matt Payne (#19 Penrite Mustang) setting the early pace with a 1:20.9350s.

Waters took over the front-running with a 1:20.1257s and a 1:19.9855s, with Reynolds, Randle and van Gisbergen behind. Championship leader Brode Kostecki (#99 Coca-Cola Camaro), meanwhile, was ninth.

Anton De Pasquale (#11 Shell V-Power Mustang) moved the benchmark to a 1:19.9253s, before Kostecki improved with a 1:19.7855s. Waters then returned to the top with a 1:19.5908s.

All the while, Triple Eight's problems emerged as both cars returned to the garage. Brown also reported a "funny" feeling in the steering in his #9 Coca-Cola Camaro. Later, Kostecki suffered a close call with Mostert at the Senna Chicane as the former exited the pit lane.

Randle flexed his muscle with a 1:19.4078s, before clocking a 1:19.4916s on his next lap. Van Gisbergen returned to the track and moved up to fifth with a 1:19.8083s.

Drivers rolled out for finals runs in the closing three minutes, with Mostert moving from 11th to third with a 1:19.6678s. Brown jumped from 20th to second with a 1:19.5677s. Waters also improved, albeit to second with a 1:19.4114s.

All the while, Randle consolidated top spot, going quickest in the first two sectors to improve to a 1:19.2911s.

Supercars will return to the track on Friday for Race 27 ARMOR ALL Qualifying at 5:35pm local time/6:05pm AEDT.

The 10 quickest drivers in qualifying will set the run order for Saturday’s ARMOR ALL Top Ten Shootout, which will finalise the grid for Race 27.