Built-Up short blocks for the Classic Mini make maintenance and/ot upgrades very easy. Or factory original design connecting rods and competition 4-bolt center main straps for the crankshaft are just a few of the options from the leaders in Classic Mini parts.
I think it is time to go over passenger car automotive engine oils in detail. I will be writing several articles to be published soon so I will try to get some of it out here. I feel this is a very general topic for all car owners on this board.