[Luke Bouwmeester]

Maybe running with a lower REV Limiter? Changing gears up sooner also helps
It's weird because with the Audi GT3 in the American Champ i'm using 90L at the start (which holds for 35 min aprox.) and refuelling with 70-80L...

Different cars have different characteristics just like real life, nothing weird about it. When they are nicely balanced this is what makes a series like this so awesome. Seems like the SCG is thirsty on fuel, but it's probably got other strengths. If you can't adjust your driving or strategy to make it work or just don't get along with it, everyone is free to change cars whenever they want.