Originally Posted by
Heathrow Harry
Given the issues reported by the three major engine providers right now it is a brave man who'd belie any promises TBH....
Having dealt with all three on a regular basis (prior to my retirement), we had a saying:
"The worst engine manufacturer in the world is the one you're dealing with today"
That being said, based on the last ten years, I'd say GE is less likely to screw the pooch than the other two.
ORAC, it's not just fuel efficiency - the maintenance/reliability/shutdown rates/time on wing have all gotten much, much better.