So I'm doing my very first lager for the Missus, after honing my technique on the ales and stouts that I enjoy

I've read on the forums a bunch of differing information on diacetyl rest. Mostly this debate is on the AG forum, using speciality yeasts. I'm making a Coopers Aussie lager out of a kit, the only thing that's different is the S-23.
So I thought I'd ask here!
So - any ideas - do I need to do a diacetyl rest? If so, when? Took a gravity reading last night and it was down to 1018 from 1040 after ten days. Am I too late for it?
If it makes a difference, my 'lagering' will be in bottles at the same temperature. No space for a dedicated lager fridge!
I had a sample of a mate's geordie bitter that had been diacetylised (is that even a word?

If it seems like I should do it, how should I do so? Just bring it in the house for a couple of days and then pop it back out to the garage?
Any tips appreciated. Cheers guys
