Tuesday, February 14, 2017

Crown Vic Police Interceptor Tank #2

I filled up last week, but was negligent about posting.

It was at 105843 miles, the last fillup was at 105619.  I filled up with 17.449 gallons of E85 @ $1.799 / gallon.  That works out to 12.8 miles per gallon.

Premium was at $2.49 per gallon, for a savings of $12.21 per tank.

I did more local driving this tank, thus the drop in mileage.

Tank # 32

I got a check engine light right at the end of the last tank.  It went away, and relit shortly after I started driving on this tank, and then went off.

gallons E85: 4.011 @ $1.799/ gallon
gallons 87 octane gas: 9.449 @ $1.899/ gallon

ethanol content of tank: 32.38%
octane of tank: 92.122

Saving per tank compared to premium @ $2.399/ gallon: $6.182

Wednesday, January 25, 2017

2011 Ford Crown Vic Police Interceptor tank #1

I picked up a 2011 Ford Crown Victoria Police Interceptor, which is a flex fuel vehicle.  I am going to keep track if its mileage on E85.  This is primarily a work vehicle and it gets driven to work on suburban roads and highway, about 50-50 mix.

Today it was at 105619 miles, the last fillup was at 105337.  I filled up with 18.423 gallons of E85 @ $1.759 / gallon.  That works out to 15.3 miles per gallon.

Premium was at $2.45 per gallon today, for a savings of $12.16 per tank.

At some point I will keep track of my mileage on regular unleaded to see how much of a mileage hit I take on E85.  It might be as high as 5 mpg, we will see.

tank #31

It's been awhile since I filled this vehicle up with E85.  The pumps at Meijer have been out of order, I've probably gone through 3 tanks of straight 87 octane gas.  No driveability issues whatsoever.

gallons e85: 4.002 @ $1.759 / gallon
gallons 87 octane gas: 8.749 @ $1.959 / gallon

ethanol % per tank: 28.49%
octane per tank: 91.232

savings per tank vs. premium @ $2.359 / gallon: $5.90

Notice that the differential between E85 and gas has come down to 20 cents from 30 cents per gallon.  I don't know if this reflects winter E85 vs. Summer E85 (more gasoline in the E85 in winter).

Friday, December 2, 2016

tank #30

Last tank lasted 270 miles before the gas light went on.  No check engine lights thrown.

gallons e85: 4.012 gallons @ $1.559/ gallon
gallons 87 octane gas: 8.896 gallons @ $1.859/ gallon

ethanol content of tank: 34.36%
octane of tank: 92.55

savings per tank compared to premium @ $2.359/ gallon: $7.66

Saturday, November 26, 2016

Tank # 29

No CEL on the last tank, and I went 260 miles before the gas light went on.


Gallons E85: 4.017 @ $1.739/ gallon
Gallons of 87 octane gas: 9.213 @ $2.039/ gallon


ethanol content of tank: 33.76%
octane of tank: 92.42


savings per tank compared to premium at $2.539/ gallon: $7.82

Tuesday, November 22, 2016

Tank # 28

No check engine lights and I got 280 miles on the last tank.  4 gallons of E85 is the sweet spot.  Car is running great.


gallons of E85: 4.006 @ $1.759/ gallon


gallons of 87 octane: 9.829 @ $2.159/ gallon


ethanol content of tank: 33.10%


octane of tank: 92.27


savings per tank compared to premium @ $2.659/ gallon: $8.52