Originally Posted by Driftomodachi

I'm sure Nissan considered all this when they put parameters on the ecu so that it could be a world car.

So can a z34 run "100 octane" or whatever it's called from the local 76 station pump here in So Cal and will it improve performance?

When I had my 240sx with an sr swap it ran ok on 91 but felt much livelier when I put in 100 but the vq is a different motor. Sorry for the noob question just trying to learn. It's funny google actually pulls up better results than the forum but I haven't found a thread that confirmed anything