http://www.kaazusa.com/KAAZ%20USA%20-%20faq_files/content_faq_files/kaazoil.jpg
Do it yourself... takes less than half a day to open up the diff and clean up the spider gears. I have a live axle though, no fancy IRS to deal with.
Fixed a jammed window caused by a dead motor before, takes like half an hour to swap the motor over.
Um... a 5+1 litre bottle of Mobil 1 0W-30 shouldn't cost more than RM200, plus RM50 for an oil filter? I do mine once every 5000kms, and the oil isn't even fully black. If you can't even change your own oil then you shouldn't be driving anything with a turbo, much less a GT-R.
NGK Iridium sparks should cost no more than RM400 for a set of 6, and these last for more than a year. Takes fuk all time to change, remove coil packs, unscrew sparks with a ratchet, swap with new sparks and all done.
An R34 GT-R weighs around 1.5 tons and features rear biased AWD, which gives it fairly even thread wear. Provided you don't do burnouts, drifts or attend track days I'm fairly sure your tyres will last for more than a year.
Grossly exaggerated mate. :Not_Impressed: