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Old 01-24-2019, 11:52 AM
 
3,382 posts, read 1,977,521 times
Reputation: 3726

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Quote:
Originally Posted by JGMotorsport64 View Post
You think so? My mileage varies significantly from 270-400 depending on whether i'm doing bumper-bumper all week or out on the open road.
For me, yes. My driving is pretty consistent. Except when we have a cold snap and the car runs every morning to warm up.

I'm not out on the open road nearly enough!
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Old 01-24-2019, 12:51 PM
 
Location: Denver CO
19,761 posts, read 10,690,392 times
Reputation: 29130
I don't have to calculate MPG as there is a display that does it automatically. But I still reset one of the trip meters after each fill up, just so I have a more visible reminder of when I'll need to stop for gas soon and can think about fitting it into my schedule. I use the second one sometimes for road trips just to see how far I've driven but mostly I ignore that one.
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Old 01-24-2019, 01:07 PM
 
Location: Montgomery County, PA
14,235 posts, read 9,112,952 times
Reputation: 11672
Quote:
Originally Posted by Peregrine View Post
I can't even think of a good reason anymore.
I used to when it took pushing a button but now I don't even know how to. It's still useful.
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Old 01-24-2019, 04:46 PM
 
Location: East Side of ATL
4,232 posts, read 5,854,067 times
Reputation: 1839
I never reset A. I used too but I forgot why so I just leave it on now until it rolls over 10k.

I reset B at every fill up. One of the reasons that I noted that my new tires sucked MPG compared to the old tires.
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Old 01-24-2019, 04:49 PM
 
3,041 posts, read 1,318,041 times
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Always all year around . I know when to get a fill up.

I try to never be less than 50 mile for highway fill ups.

City driving, I know I have gas reserve for 15 miles.
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Old 01-25-2019, 10:47 AM
 
Location: Cleveland, Ohio
11,143 posts, read 13,163,263 times
Reputation: 7313
Quote:
Originally Posted by GeoffD View Post
The fuel consumption/MPG displays on my car's trip computer are so inaccurate that I don't use them.

When I first got my car I did it manually to check the accuracy of the cars results. It was ALWAYS within .5-1mpg accuracy. That's more then good enough for me.
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Old 01-25-2019, 02:20 PM
 
Location: Between Heaven And Hell.
11,140 posts, read 7,307,502 times
Reputation: 14391
Yes, so I can keep track of my gas mileage. If it gets too low, I know something's wrong.
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Old 01-25-2019, 04:41 PM
 
351 posts, read 81,277 times
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I use it for calculating gas mileage. My vehicle does a calculation for millage and displays it, but I don't know when it begins or stops so I use the old fashioned way calculating one tank at a time.
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Old 01-25-2019, 04:44 PM
 
9,642 posts, read 4,124,016 times
Reputation: 14445
I use it to track oil changes, reset and let it go to 7,000 miles then reset again

for trips, I can use the other counter. not sure why cars need two but they seem to have a/b so I use one as a oil change counter

used to reset at fill ups, but since I don't always fill to the top, the counter doesn't make sense for tracking.
car computer does well enough to judge how many miles left in tank and mpg I get
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Old Today, 07:31 PM
 
Location: Still in Portland, Oregon, for some reason
868 posts, read 3,021,552 times
Reputation: 694
When in town I just reset A and B when filling up but on road trips I use A for fuel and B for total trip distance.
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