I was wondering the other day, does it hurt an automatic gearbox to 'compression' or 'engine' brake? (I.E. manually selecting a lower gear and let the gears slow you down so u don't have to use the brakes as much)
No not really, Unless you do compression lockups or something
like putting it in first when you're doing 120.
I've done a few compression lockups in my car and it's fine, except it won't change into fourth and there's metal and copper bits in my trans oil filter... hmm, maybe those lockups weren't such a good idea. I think it's just to gearbox falling apart in general because the cars done ~350,000 kms.