01-04-2014, 02:15 PM
I run premium in both of mine. While "highly recommended" but not required, I'd run premium if I were you. I bet you'd see a slight fuel economy bump too. When I worked for GM in Pontiac, MI I was in ICE teardown where I compiled and presented post-test reports for various Ecotecs, including several LNFs. There was a noticeable difference in component wear between the test engines run only with regular and those run only with premium. Just food for thought. GM dynamometers used Shell gas 90% of the time FWIW.
2008 Chevy HHR SS
LNF - 2.0L turbo | LSD | 5-speed manual
GMPP Turbo Upgrade Kit (290 HP / 315 TQ) | ZZP 1.25" rear sway bar | Front Brembos (12.4")
2008 Saturn Sky Red Line
LNF - 2.0L turbo | LSD | 5-speed manual
Z0K Rear Sway Bar | Trifecta Tune (315 HP / 330 TQ) | Front Chassis, Backbone, & ProBeam Braces | T-bolt Hose Clamps
LNF - 2.0L turbo | LSD | 5-speed manual
GMPP Turbo Upgrade Kit (290 HP / 315 TQ) | ZZP 1.25" rear sway bar | Front Brembos (12.4")
2008 Saturn Sky Red Line
LNF - 2.0L turbo | LSD | 5-speed manual
Z0K Rear Sway Bar | Trifecta Tune (315 HP / 330 TQ) | Front Chassis, Backbone, & ProBeam Braces | T-bolt Hose Clamps