This explains a lot, I've used regular from a name not on that top tier list for many years.
Shell 91 was money well spent to clean up that mess.
No wonder the truck runs better now.

 

Keep in mind !

In the 10 or so fill ups I switched to Premium ethanol free Shell, I've spent maybe an extra $300 ?
Was probably money well spent for the yrs of poor quality fuel I was using on top of that it was mixed with Ethanol.
Costco 91 is ethanol free and it's priced the same as Regular from big name brand stations.
I'll use that going forward.

 

There's no benefit to Ethanol-free fuel other than the storage factor, or if you're using it in a vehicle made before E10 was standard. (Alcohol tends to eat rubber not designed to handle it.) As for mileage, Ethanol has roughly 1/3 the energy of gasoline, but with only 10% Ethanol and an average fuel consumption of 15-ish MPG, you might see a.5 to 1 MPG difference. Nowhere near enough to offset the added cost of the E0.

 

It was very apparent in my 90-something V6 Passat. I thought there was something wrong with the car until I realized they only sold ethanol crap in the state I was visiting (this was back when real gas was standard pretty much everywhere).

It made no difference whatsoever in my '15 Mustang.

 

Yeah, the early days of E10 were sketchy.

 

Making sure my license plate delete looks OK, LOL. I am ALMOST to just needing to do the hood and rear wing now. Should be really close to primer ready this weekend.

 

COS: If you want to find some E0, you might want to check out THIS LIST.

 

If you have ethanol free fuel that's top tier and it's 87, use it !

 

agreed. I only use E0 in my ranger and for my small engines. My F150 I've used E15 or E85 a couple times. E85 my mileage really tanked as to be expected

 

gas actually went down 4 cents over night