Math question

[captain]

Any one know the formula to figure out gas values?
Example... 93 octane @ $4.23 per gal = 22 MPG
Example...92 octane @ $3.89 per gal = 19 MPG

[Krytin]

For a 100 mile trip:

@ 22 MPG = 4.55 gal x $4.23= $19.25

@19 MPG = 5.26 gal x $3.89= $20.46

Buy the high test!!!

[Krytin]

..and for a simple comparative, divide the MPG into the price per gal. This will give you $/mile - the lower the number the the better.

$4.23/22mpg = $0.1923 per mile

$3.89/19 mpg = $0.2047 per mile

[SILVERSURFER03]

so whats the formula for miles by dollars per galon equal mpg os is that it

[captain]

Thank you..........................

[max454]

Why would the higher octane get better gaz millage?

[ImpalaSlayer]

Why would the higher octane get better gaz millage?

great minds think alike :confused:

[Paul T. Casey]

Why would the higher octane get better gaz millage?

It shouldn't make a noticable difference, unless you're doing mostly WOT driving. Even then, I'm not sure if any of the PCM's "fixes" for a knock condition is to add fuel. It will pull timing, thereby lowering power output, requiring more fuel to keep the same speed. But in the real world, octane has no bearing on economy.

[lucenti]

i dont know about octane affecting mpg, but i do notice given the same miles driven, i do get better milage using 93. i do declare this to be true to the best of my knowledge :bows: wind ,road, conditions same mph same. use the food test. i ate i big mack ran 20 feet fell down. i ate big mack with hot peppers rand 30 feet fell down, the added boost from the peppers gave me another 10 feet :flamer:

[CRUZTAKER]

Where does the heavy foot / forced induction quotient come into the equation?

And will this require calc?


I hate math. :cool:

[Krytin]

Key words in the first post are "example".
The point of the math is to calculate $/mile for any grade/brand of gas.