fuel mileage math?
Thread Starter
|
Laughing Gas
Joined: Apr 2001
Posts: 1,191
Likes: 4
From: West Union, OH USA
fuel mileage math?
After filling up and driving 100 miles and filling up again...
which is the correct formula? Hopefully one is right, ha. I'm an idiot.
100miles/16gallons=6.25 miles per gallon?
OR
16gallons/100miles=.16 Miles per gallon?
1979 F-100 SWB 300 6cyl stock intake, carb and exhaust, C6, and 3:54 geared 9inch rear. Mostly town and backroad driving so far.
THANKS
which is the correct formula? Hopefully one is right, ha. I'm an idiot.
100miles/16gallons=6.25 miles per gallon?
OR
16gallons/100miles=.16 Miles per gallon?
1979 F-100 SWB 300 6cyl stock intake, carb and exhaust, C6, and 3:54 geared 9inch rear. Mostly town and backroad driving so far.
THANKS
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Wow, and right after the webmaster announces the new calculators page.
https://www.ford-trucks.com/calculators/index.php
Have you checked the air filter lately ?
https://www.ford-trucks.com/calculators/index.php
Have you checked the air filter lately ?
Post Fiend
Joined: Jan 2006
Posts: 20,589
Likes: 2
From: Charlotte, NC
Good one, Mil1ion....I usually just use a regular calc, but forgot to check my mileage when i fueled today.......Just checked it in the new calc page, and it's 17.5mpg (315 miles and just a whisker under 18 gallons).......Keep in mind, this is mostly commuter driving with good amount of city driving.........not bad for a 2000 4X4 crew psd with 63000 on the OD........I'll take it.....
Post Fiend
Joined: Feb 2003
Posts: 6,940
Likes: 2
From: Eastern WA
Have a lookie at the units in your math as you've presented them. The first one results in miles/gallon, or miles per gallon and the second one is (result should read) gallons/mile, or gallons per mile, not miles/gallon.
Thread Starter
|
Laughing Gas
Joined: Apr 2001
Posts: 1,191
Likes: 4
From: West Union, OH USA
THANKS GUYS.
I thought the first one was right but really couldn't believe that a 6cyl engine could ever get so poor mileage. Might as well put in a 460!
I thought the first one was right but really couldn't believe that a 6cyl engine could ever get so poor mileage. Might as well put in a 460!
Trending Topics
Post Fiend
Joined: Jun 2001
Posts: 5,228
Likes: 5
From: Running Springs CA
If backroad driving means off-road and town driving means real short trips, under two miles, then 6.25 mpg is not unreasonable. Otherwise, it needs some work. Late 1970's were a nightmare of vacuum hoses, sensors, etc. If the vacuum spark advance is not working because of a bad sensor or leaking hose, that will kill mileage big time.
Jim
Jim
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
ponch37300
6.7L Power Stroke Diesel
21
Nov 26, 2016 01:20 AM
Torsten.H
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
4
Oct 18, 2016 11:53 PM
wrhinehart
1967 - 1972 F-100 & Larger F-Series Trucks
9
Apr 20, 2015 11:56 AM
