I was very disappointed with GLI's mileage today. Seeing all these threads here, I thought it should give atleast 15+ on the highway with A/C on but I was mistaken.
Drove 2 cars, 2010 GLI and 2010 Altis Cruisetronic from Lahore to Islo and back today. Both cars had same load, and were driven in same style. The route was exactly the same and petrol was also filled from the same petrol stations. Both cars after the trip have ODO of 5000km. Mileage I got from both
GLI - 13km/ltr
Altis Cruisetronic - 14.2km/ltr
This is very disappointing considering Altis is automatic and 1800cc+automatic combo should literally drink petrol but here it didn't and outperformed GLI.