Oct

Top Tier only 87 normal , 93 towing

13XLTEco

We need more Shell stations locally. Closest is 30 miles east. They have the best gas, IMO.

duck9191

Learned octane ratio, it's what the ecu asses the fuel quality as and adds or remove some timing to compensate.

Probity

87 octane (E10) most of the time, unless towing then an on-the-fly blend of 91/93 octane in a near-empty tank.

2AF150GA

top tier fuel, 93 octane

Bjkb1f

I've only run 89 in my F150.

I had/wife has a 2014 Explorer Sport with the 3.5 Eco and I feel like I could tell a significant difference between 89 and 87, but little if any difference between 89 and 91/93.

SnowHater

Meijer regular that I think is 89. I use it because I get 10 cents off per gallon with my card. Since we are being screwed most of the time on gas cost, every penny counts. You have to be in Michigan to know about them. I don't know if they are out of the State.

duck9191

At least your not on the east side of the state with the "canada tax" adding another 10-20 cents.

blkZ28spt

Meijer has been in other states for quite awhile. I don't know if they are outside of the great lakes region though

SnowHater

Well I got surprised with: Founded in 1934 as a supermarket chain, Meijer is credited with pioneering the modern supercenter concept in 1962. About half of the company’s 200 stores are located inMichigan (Lower Peninsula only), with additional locations in Illinois, Indiana, Ohio, and Kentucky.
Because I was in Indiana and Kentucky in early April and did not see any.