Millers Oils - based in Brighouse in God`s own county.
They have a wide range of oils & other lubricants (Keep it clean!!!) - they do oils etc. for older and modern engines they also sell in smallish quantities. Their website is good for finding what is suitable for your car
www.millersoils.co.ukThey will happily send you a brochure of products so that you can leaf through it in the privacy of your own home.