MTA New York City Transit New Flyer XN40

So. Having experienced driving with the ZF Ecolife transmissions, I can definitely say I'm not a fan of them.
This one had some odd sound effects going on which while noisy, really lets one hear the odd shifting patterns these transmissions have. Not a fan, acceleration is slowed down as second gear gets shifted through in a hurry. It gets worse when there's a load.

[@xs1studios820]

I rode a similar XN that sounded like this back in December of 2019. It was 694 out of WF. I was told it was due to a cold start.

[@KSAPCreator]

I remember some units (WF) had a screeching sound in around 1st-2nd gear

[@atheman90]

I think that’s the transmission. I could be wrong.

[@XxLiLGiJoE17xX]

I agree, the best ZF buses are the new 2019 LFS. Idk what they did with them buses but they are fast af and accelerate way faster than the previous ZF models.

[@Spectacular66]

The diesels have slightly more torque than the CNG ISLs, so they can power through second gear and not experience a big loss of power

[@eddieflxible379]

ZF Ecomat was the better option ...but i guess transit agencies have them spec'd defferently for their performance needs.

[@RAProductions-jl5dz]

Very good

[@AlachuaCPS2302]

wierd engine