Has anyone put anything more than 98 Octane in their 07+ G35?

just curious

 

It won't gain you anything since your car is not tuned for that octane rating

 

yup, can't take advantage of higher grade fuel unless your car is tuned for it. Also if you've been using regular gas, i think it takes about a whole tank of premium, before it realizes that it's a different grade (at least that was the case with my TL)

 

+3

Unless you run more timing or boost with that gas you won't see any gains.

I run VP 100 when I add some timing and turn up my boost.

 

Ive run Race fuel on my SE-R many times and you can see a power diffrence but its not cheap.

I have a JWT 4 bar program on my 200sx se-r and im running a T28 dual ballbearing.

if you are not tuned for it its a waste of money.

 

very true....tuning is the only way to experience the higher octane benefits.

 

Quick octane lesson for NOOBs.

The higher the octane the LESS combustible it is.

If your car is stock, run the recommended fuel (for us 91-93 octane) to make the most power.

High compression/boosted motors NEED high octane to prevent detonation (basically gas blowing up at the wrong time which can blow up your motor).

If you run too low of an octane, your computer will pull timing to prevent detonation and you'll lose power and fuel economy.

Too high of an octane will hurt power and possibly gum up your injectors.

Basically, "super" is only super if your can needs it.