Saw someone post it on Facebook, but thought I'd let people on here know...
TPS have got an oil offer on at present but it finishes today.
I realise the majority of us are at work (inc myself) BUT you can call them up and reserve the item without making payment, and then collect what you reserved for the price it was on that day.
I managed to get 5l of Quantum Platinum 5W/40 for £16.19.
So I will be off to collect my 5litres at the weekend for just over £16 in preparation for my next service