Hey Simon,
I have a:
1.5D 52 reg saxo - bog standard and shall remain so (might be tempted to stick a better filter on it but nothing major)
Currently does 100-150miles per week (running for 35mins at a time) and the occassion motorway voyage.
What would you recommend?
I've got Millers Fully Synthetic XFD 5w-40 in it at the moment.
Like Simo I'm a engineer (tho mechanical - which are better anyway
lol) so the detailed explainations are really appreciated.
Ad