National Tyres and Autocare currently have a great offer running on a oil and filter change but you need to order online. I took advantage of this yesterday and it cost me £43.82 for my 2.2ctdi Honda and it was all sorted within an hour. The oil used was TITAN SSYN F ECO DT5W-30 premium performance engine oil. Even the manager commented, 'That's cheap!"
The starting price was £48.69, I applied code DV125 which reduced the price by 10% and removed the oil disposal charge (no mention that this has been removed on the on the order confirmation page) which removed a further £1.70.
Don't forget 6% quidco, mine tracked at £2.14 so potentially take the total price down to £41.68.
Once you recieve your order confirmation you need to ring up your nominated branch to arrange a time to take in your vehicle.