Oil and filter change at National Tyres & Autocare with 20% off code, prices from £28.80 using code = £23.04, there is also an optional charge of £1.70 for oil disposal.
They are using in my car (will be different for others depending on model)
Castrol Magnatec 5W30 Full Synthetic (my car takes about 4.5 Ltrs and a 5 Ltr bottle of this oil is worth £25).
OEM Filter (worth about £5-£7)
Code is: GPLUS1OF
Note: Due to the increased complexity involved with the removal of under-trays in certain vehicles, it may be necessary to make a small additional charge of between £6 to £12 for their removal. If necessary, this will be discussed and agreed with you in advance of your oil and filter change being carried out.
This deal has been posted on here before over 16 months ago and is now expired, that's why i have re-posted it, also the prices are different now. Mods delete this post and un-expire the old one if needed.