Proton Saga 2019: How far can you drive with a single tank of fuel?

Is the new Proton Saga 2019 fuel efficient? We took part in Proton's 1 Tank Adventure that covered more than 650KM of distance from KL to JB and then back up to Ayer Keroh R&R. We drove the Premium variant that's priced at RM39,800. We drove with the aircon switched on all the time until the last 30 minutes of the challenge. We've been driving with an average of 70-80km/h while keeping the tachometer around 2,000 RPM. #proton1tankadventure #protonsaga2019