Not seeing E15.......Yet

Been watching for this since I dont own a car that can use it. My jeep owners manual is very specific about no more than 10% ethanol.

Had to run up to the Shell station to get gas for the toys. Tested it when I got home and its coming up 6% ethanol which is the lowest I have ever seen here.
What tool do use to test the ethanol content?
 
What tool do use to test the ethanol content?
This thing

Screenshot_20260722_064416_Chrome.webp
 
QT in the Chicago suburbs has 10% ethanol but also has the 88 E15 for only a few cents less.

In Beloit, WI yesterday I stopped for gas as Costco was closed and I needed to fill up to get home. Also, WI gas is cheaper than IL. Pilot was $3.69 and Speedway and Mobil were $3.99. I believe that Speedway is E10 as i stopped there last year. I wanted Speedway to use up a gift card balance but I didnt want to pay 30 cents extra.

Pilot had E15 for regular 87 and midgrade. The premium was E0 and was price $1.30 more? I wish I had taken a Pic. The usual spread for E10 fuel in Illiniois is $1-1.30 more. I would have actually filled premium in my TL to try out the E0 but I was driving my Taurus. In the TL, I usually just run 87 and take the MPG hit and save money. Ive run Premium occasionally but it has always been E10.
 
Kwik Trip in Sun Prarie WI (near Madison). You can see the price spread of E10 87, E 15 88 and E0 91.

7905.webp

I searched some threads here and some thought E15 88 is worth it if it is ten cents or more cheaper. I got it anyway for the 3 cents difference because I am experimenting with it. I know the car readout has been said not to be accurate but it has displayed better MPG for my Acura TL and for my Taurus.

I thought the TL might do better with the 88 since it's supposed to get Premium but the Taurus seems to display better numbers as well.

This hasn't been a scientific experiment. I did severla hours of highway driving and the display numbers went up in both card with the E15 88 and when I ran it down and refilled with E10 87, the numbers dropped down.

I had E15 87 last week in the Taurus and thaf 2 hour drive did show lower than usual MPG displayed.

As I said in my previous post, I want to waste the extra money on the E0 91 in the TL when I'm up in Wisconsin again as Ive never run that. Ive only run E10 93 a few times. I did get better MPG to display but it never seems worth the $1-1.20 extra over 87.
 
At Sheetz here in PA E15 is 50 cents cheaper. 3 cents...REALLY?!
If your car is a turbo...Even if it's approved for 87 octane, it can use the 88 octane for more power. ESPECIALLY if it's hot out. Less ignition retard, less boost pull, etc.
 
At Sheetz here in PA E15 is 50 cents cheaper. 3 cents...REALLY?!
If your car is a turbo...Even if it's approved for 87 octane, it can use the 88 octane for more power. ESPECIALLY if it's hot out. Less ignition retard, less boost pull, etc.
Yeah, the 3 cents is a ripoff. If I weren't experimenting, I wouldn't have bought it out of principle. It was ten cents discount for E15 88 at Casey's in NW Indiana.

Gas buddy says my local QT in the Chicago Suburbs has a 5 cent discount for Eq5 88.

50 cents is amazing!
 
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