wow flip, car looks really great! you must be proud!
wrong oil though, thats too thin. You need Halfords Classic 20/50 its in a bit green metal tin. Alternatively use Duckhams 20/50.
going by the colour and texture of your oil i saw, any fresh oil is better than the old thats in it, even if the viscosity is too thick.
also sometimes i buy oil from Wilkinsons (Wilko) they do a multigrade 20/50, io use it to flush them engine, but im sure its fine to use depite being only £3.50!!! great stuff
im so sorry i never posted that exhaust, but your are welcome to it, and when i come up for the shows i will bring it iwth me.
takecare
Chris