Blue smoke = oil burning
White smoke = water
Black smoke = fuel
unless your seeing lots of black smoke out of it i wouldn't worry to much, if in doubt just give clinic a bell and can always run it back to em to give once over.
thast cheap. rear arches rust from inside out, so when it becomes visible there will be inner arch issues as well, how far the rot has gone wont be know until they strip it back and see how deep the rust goes.
Do tourself a favour, put it on ebay and take the money.
Total waste of money im afraid mate, drive it steady to let it warm up for first few miles, drive it steady last few miles to let it cool down. Turbo timers dont allow all fluids to circulate properly and cool evenly so are not worht it.
Brakes as a starter, then decat, panel filter and map, followed by the handling mods, then the viusual stuff.
as least that what i'd do :)
p.s. i'd still go down the AP route myself ;) lol
By topping it up, how much are you actualy putting in? would be a big puddle on the floor if rocker was leaking as much as it sounds like it is
1 Litre per 1000, 1 Litre per 100 miles?
What model/engine and what is your real average mpg folks?
pondering on replacing the volvo with one in 12 months time but being daily and company paying for fuel i need to hit a certain MPG (50), whuch i realise they wont do, but i dont mind putting the odd tank in