It has this is to replace some older 744 which are becoming gaz guzelling.

773 on the JFK,LAX,SFO,SIN-SYD,BKK-SYD,NRT,DXB routes i would imagine.

The 744 is not “guzzling” any more fuel per seat than it was last year, or the year before that.

I think the term you mean is “becoming more expensive to operate due to high fuel prices”