Hess here in NJ has 87 89 93 octanes but contains 10% ethanol. They are 3 cents cheaper than surrounding gas stations. I was surprised that the nsx can do 85/15 mix according the owners manual. Does anyone prefer the ethanol mix? I think it may burn cleaner but definitely not better mpg.
The nsx requires 91 or better octane but I don't see it around except at Sunoco which is 6 cents less than their 93. So only for a difference of 90 cents if you fill up. But if you have a stock nsx, would you still choose 93 over 91?
The nsx requires 91 or better octane but I don't see it around except at Sunoco which is 6 cents less than their 93. So only for a difference of 90 cents if you fill up. But if you have a stock nsx, would you still choose 93 over 91?