My FRS loves to eat gas!

[Andrew025]

Originally Posted by billwot

Just FYI, to determine miles per gallon, you need 2 pieces of data, miles,and gallons.


Days and tankfulls are not very meaningful.

It's quite simple really.
You divide days by the amount of tanks you have and then you get exactly how many tanks per day you use.

I usually get 1TP7D so I think I'm doing fairly well.

[billwot]

Originally Posted by Andrew025

It's quite simple really.
You divide days by the amount of tanks you have and then you get exactly how many tanks per day you use.

I usually get 1TP7D so I think I'm doing fairly well.

My TPD rate seems to be very erratic. Sometimes I get 1TP7D, but other times I only use 1TP21D. Seems to vary with how often and how far I drive it. Should I take it in to the dealership and have it checked?

[Dadhawk]

Originally Posted by Andrew025

It's quite simple really.
You divide days by the amount of tanks you have and then you get exactly how many tanks per day you use.

I usually get 1TP7D so I think I'm doing fairly well.

Checking the spreadsheet where I keep mine, over the life of my car the average is 1TP6.6D so you are doing slightly better than me. I think I'll drive my Suburban on my 80 mile commute next week to see if the FR-S TPD improves. Over the last year the Suburban has averaged about 1TP21D. I suspect that will drop substantially though if I do drive it to work.

[MikeyBatz]

I am at 23.7 MPG right now with 80% highway 20% city. Warming up the engine in the morning is slowly killing my MPG

[Tcoat]

Originally Posted by Andrew025

It's quite simple really.
You divide days by the amount of tanks you have and then you get exactly how many tanks per day you use.

I usually get 1TP7D so I think I'm doing fairly well.

Originally Posted by billwot

My TPD rate seems to be very erratic. Sometimes I get 1TP7D, but other times I only use 1TP21D. Seems to vary with how often and how far I drive it. Should I take it in to the dealership and have it checked?

Your problem may be that you are calculating your TPD all wrong!
This is the proper calculation:

[stugray]

Originally Posted by MikeyBatz

I am at 23.7 MPG right now with 80% highway 20% city. Warming up the engine in the morning is slowly killing my MPG

Yours seems odd. I have been at or above 30 MPG since I bought mine.
I run 91 gas at 1 mile alt.

[Bergen23]

Wow. This has become so unnecessarily complicated for a simple calculation.

[OnkelC]

I always fuel for 20EUR, best way for calculable costs.

[stugray]

Originally Posted by Tcoat

Your problem may be that you are calculating your TPD all wrong!
This is the proper calculation:

Sorry, but to use that algorithm, you first must convert tanks per day (T/d) to light-nano-seconds per hogshead (LnS/HgsH).

1 Hogshead = 63 gallons
1 LnS = .0001863 mi

So I get about 10.1 million Light-nano-seconds per Hogshead.

[Tcoat]

Originally Posted by Bergen23

Wow. This has become so unnecessarily complicated for a simple calculation.

Well that is engineering for you!

[Tcoat]

Originally Posted by stugray

Sorry, but to use that algorithm, you first must convert tanks per day (T/d) to light-nano-seconds per hogshead (LnS/HgsH).

1 Hogshead = 63 gallons
1 LnS = .0001863 mi

So I get about 10.1 million Light-nano-seconds per Hogshead.

Canada, so it is cubic decameters per light-nano-seconds.
Can't seem to find the proper setting on the dash readout though.

[GT/86]

I get about 410 miles to a full tank but that's only HWY

[Priapus]

Originally Posted by stugray

Sorry, but to use that algorithm, you first must convert tanks per day (T/d) to light-nano-seconds per hogshead (LnS/HgsH).

1 Hogshead = 63 gallons
1 LnS = .0001863 mi

So I get about 10.1 million Light-nano-seconds per Hogshead.

WTF is a "tank"?

[Tcoat]

Originally Posted by Priapus

WTF is a "tank"?