i used to do whites at 60, but my new (ish) machine only has one 60 cycle and it's nearly 3 hours long.  So now i do it all at 50.

My old machine was a Zanussi and I had it 28 years.  In all it's life it only had 2 small repairs, and was still working when i decided to get a more modern one. The modern one costs more to run, takes hours longer and doesn't give any better results than the old one did.  They don't make 'em like that any more.