Shel_B
Site Donor 2023
- Joined
- Aug 7, 2020
- Messages
- 5,167
Are you saying that SoCal Costco has a mid-grade? I don't see that at any of the Costco stations I've used here in NoCal over the last four or five years. Nor did I see mid-grade in Oregon, Illinois, Nebraska, or Iowa.While you make a sensible argument, I have a different perspective. So, gas in SoCal runs around $5.50/gal, which is my Costco price. The difference between 91 and 89 is around .15 cents, or 2.7%. So worst case it will cost me an extra $1.60 or so to fill up, good for 450-500 miles. I believe that the octane boost allows higher operating efficiency. And considering other operating costs, air/oil filters, oil changes etc etc, this is lost in the wash, worst case, best case I will easily get 2.7% better gas mileage. And since I have a Kia and everybody knows it will grenade at any moment, well .......
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