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Jordo! · 12-23-2014, 10:14 AM

BTW, I missed your first comment: Octane needs are a very real issue -- "premium" is only a waste if your engine is tuned to operate safely on a lower octane...

Anyway, the idea is "better regulated" vs. "worse regulated"; its not simply "good" vs "bad" with perfect precision across stations and pumps.

Also, did you use lower than 91 AKI? If so, no wonder you were pinging under load --that's not Kroger's fault.

In racing applications, you are typically working with very exotic (i.e., special additives, specific fuel densities, etc), high octane fuel blends... I dunno about Shell pump gas.

12-23-2014, 10:14 AM	#7 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	BTW, I missed your first comment: Octane needs are a very real issue -- "premium" is only a waste if your engine is tuned to operate safely on a lower octane... Anyway, the idea is "better regulated" vs. "worse regulated"; its not simply "good" vs "bad" with perfect precision across stations and pumps. Also, did you use lower than 91 AKI? If so, no wonder you were pinging under load --that's not Kroger's fault. In racing applications, you are typically working with very exotic (i.e., special additives, specific fuel densities, etc), high octane fuel blends... I dunno about Shell pump gas. __________________ Enjoy it. Destroy it. Last edited by Jordo!; 12-23-2014 at 10:24 AM.