2021 Forte GT w/GT2, Currant Red, Wagner-Tuning Intercooler, Evilla Exhaust, Takeda S2 Intake
If you drive like a normal person 87 octane is sufficient...
I run Techron once a year as per Kia, however, I can't tell any difference after using it. But I'll continue to do it, and document it, should any warranty issues crop up...I’ve never run fuel cleaner through any of my cars and none of them have ever had any fuel system issues. That being said, I do run top tier all the time in the turbos and cars that call for it and once every oil change in cars that don’t. I’d just stick to running top tier premium.