Lowndes focussed his efforts on working through a planned program built around the soft tyre.
While his team-mates struggled initially with balance issues, the 41-year-old enjoyed a solid day which yielded plenty of positives to take to Hidden Valley.
The #888 ran a selection of upgrades which Lowndes is keen to continue with when the championship reconvenes in the Northern Territory.
“We had a good solid day. It is always difficult when you don't have too many test days and you have to make sure you utilise them,” Lowndes told Speedcafe.com.
“We ran through a number of changes and we refreshed ourselves with a lot of things we thought we knew and confirmed those. It was a really productive day.
“For us it was a positive day for the future. There is no doubt about that.
“Ludo wasn't worried about lap times he was just worried about results from changes.
“We had some good benefit changes which resulted in answering some questions while also asking more questions.
“There wasn't too many new updates but the car worked fine with them so there was no reason to take them off or modify them.
“We are happy to run the car as is at Darwin.
“It is a different circuit but we will try and implement some of the changes there.”
Lowndes heads to Hidden Valley lying fourth in the championship standings just 39 points adrift of leader Mark Winterbottom.