yeah bro.
says that nissan doesnt stock the 10mm hexags, but they gave her some slightly smaller nuts with the same thread. apparently theyre off an N/a manifold...presumably a maxima or something.
nuts are pure metal, with locking via a tapered end.
acording to nissan, all nissan engines use 7.5W30 oil out of the factory. according to the bloke at nissan, a W50 or 60 is going to be able to run hotter, but is probably too thick to be any good. sounds like the 10W40 is probably the way to go.
noticed xspeed use the same shitznitz.