Narain Karthikeyan declared himself satisfied after testing for Jordan at Barcelona's Circuit de Catalunya despite struggling on the time sheets.
Karthikeyan was well off the pace
Karthikeyan, India's first F1 driver, clocked a best time of 1min 17.59secs, with Portuguese team-mate Tiago Monteiro recording a best of 1:18.67.
They were both over three seconds off the pace of McLaren's Pedro De La Rosa who had a fastest lap of 1:14.54.
Karthikeyan said: "We are quite happy with the progress we have been making."
The two Jordan drivers focused on tyre testing for Bridgestone, chassis set up work in preparation for the season-opening Australian Grand Prix in March as well as practising pit stops.
Karthikeyan: "I did 74 laps on Thursday and we tried a lot of new things with the car, especially tyre work for Bridgestone.
"We also carried out some set-up changes."
World champion Michael Schumacher took his Ferrari to the fourth best time of the day of 1:14.9.