This is fun, always good to know,
I'm using HPR 10 10w-40 in my 120,000km ZC. And it's 23 years old,
Don't know how much oil it burns, cuz every oil change is about 6 month by drive 2000kms max....
i would pick a small piece of the trim with a bit of carbi cleaner (or paint thinner) spayed on rag, try it, do it really slow,
if the paint come off try use some interior shining on the trim, then...
built it up and spend a bit for a better turbo if the buget allow u.
its gona make u smell for a while.
the hardest part is already done. just keep it.
first of all 205/55/15 is way too big for ed/ef, will cause wrong reading of speed for sure, they look shit too.
u will need 195/50/15.
for the offset 25, will be nice if the wheel is 15x6 -15x7...
if ur fan comes on and temp still goes up...
that can be a lot of thing, first u may loosing coolant, need to bleed the cooling system, faulty radiator cap, head gasket...
have a look the spark...