As someone who's bought Castrol from us before, we thought you'd like to know that until the end of Sunday 13th December you can get a free 1 litre top up bottle with every 4 litres you buy, whether it's Castrol Edge, Edge Sport, Magnatec or GTX !

You'll need to enter voucher code XMASLITRE at the checkout to claim your free litre(s)

This extra special offer runs only for a few days - until the end of Sunday 13th December 2009 - so place your order soon if you don't want to miss out...

Not sure what oil to use? Check your owners manual or feel free to give us a call on 01209 215164 / email us (sales@opieoils.co.uk).

View the Castrol engine oil range here >>