Post by
loystock »
https://forums.nicoclub.com/loystock-u10145.html
Sun Jul 19, 2009 8:23 pm
The I30 is similar to 4th Gen Maxima and premium fuel is recommended, but not required. We have oxygenated fuel here in CA but we don't have performance issue since we use premium fuel only in the I30s. Also, I add BG44K Fuel System Cleaner every 6 months. But they changed the formulation (no more PolyEther Amine) so I'm using Red Line SI-1 fuel system cleaner from now on (and much cheaper too).
Since you've been buying mid-grade, why not switch to premium and check the difference. The difference is only $0.10.