1JZ fuel type

[drewtiss]

Originally Posted by 89_1j

All of the specs on the 1JZ say "fuel type: unleaded premium." Is premium required or is it just better mirror for it? Also, is there an easier way to do the wiring on a 1jz? Ive heard they make a wiring harness thats like an adapter when installing in a mkiii. If there is such thing where could i find one and how much would it cost?

Yeah he's right on that matter. I also think that it's a little more expensive per gallon. I think I saw something on this forum about the wiring hareness.