My brother's 93' civic fuel economy.

[Colt45]

fuel gauge. ahaha

fill it up.. divide miles on odo by gallons put in the tank..

 

[AgaBoogaBoo]

Originally posted by: Colt45
fuel gauge. ahaha

fill it up.. divide miles on odo by gallons put in the tank..

I thought this was common knowledge?

 

[wetcat007]

Originally posted by: redly1
42MPG is damn nice, but I'd be afraid to drive an econobox that old. Too much rust (visible and hidden)that a car from 93 (especially a honda of that vintage) has...yikes Major structural comprimise

That depends on where live, where there's no snow/salt cars won't rust very fast.

 

[lyssword]

Originally posted by: AgaBoogaBoo

Originally posted by: Colt45
fuel gauge. ahaha

fill it up.. divide miles on odo by gallons put in the tank..

I thought this was common knowledge?

I don't get it, what are you guys saying? That's exactly what my brother did, I just got into more detail.

 

[thomsbrain]

Originally posted by: wetcat007

Originally posted by: redly1
42MPG is damn nice, but I'd be afraid to drive an econobox that old. Too much rust (visible and hidden)that a car from 93 (especially a honda of that vintage) has...yikes Major structural comprimise

That depends on where live, where there's no snow/salt cars won't rust very fast.

yeah, in CA, even where it snows, they only use sand. you really only see the oldest of the old mountain pickups with any kind of rust here.

 

[thomsbrain]

Originally posted by: lyssword

Originally posted by: redgtxdi

Originally posted by: lyssword
My brother filled up his 93 civic hatch (1.5liter) with $15 of gas @3.18 (now up to 3.25 ) which is ~4.7 gallons. His fuel gauge dipped to approximately same point as before filling gas up, and odometer reads 202 miles I was there when he pushed the button after filling up. That's about 42 miles per gallon

He drives conservatively (no sudden acceleration) with manual transmission. Our city's traffic not too bad (only slightly bad at 4-6pm), and he sometimes takes freeway to travel from one side of city to another.

Just thought I'd let you know

Except that there's a problem with your math. Well, actually not the math, but the method.

The "approximately the same point as before" doesn't work.

Here's the process that will get you the accurate MPG......

Fill up
Drive 'til tank's just safely getting low.
Fill up again & write down # of gallons it took to fill 'er back up again & divide the # of miles shown on your odometer by the # of gallons (to the 'tenths' place) it just took to fill the car up again.

Repeat 4 times over a 1 week to 1 month period. (Depending on how much you drive)

Calculate average of your MPG results from preceding fill ups & calcs.

Answer...........

Probably something closer to 30 or maybe 35 tops.

Rule #1.............don't use dollars & cents & 10ths of cents to figure actual gallons.
Rule #2...........don't approximate benchmarks on a gas gage.
Rule #3..........use a handful of full-tanks to get the right calcs.
Rule #4........prepare to have your aspirations spewed on like carbon emissions!

That's what he did. He refilled gas tank when it was almost empty (lowest line). And at 202 miles the gauge was almost exactly at the same spot. Now yes, it's not digital and super precise, but I'm usually good at estimating numbers. The 4.7 gallons he filled up with took it from lowest point to more than half a tank. Therefore the number deviation should not be more than 1/10th of total (another estimate). 1/10th precision of 5 gallons = .5 gallons. If so, 5.2 (at most) gallons would mean 39 mpg.

Also I now remember that when he filled his gas tank, he was almost running out of gas as in danger of car stopping because it was out of gas. But after 202 miles the gauge was showing a little bit of gas left over, prolly 10-20 more miles to go (est.)

Knowing the exact price and exact amount of money spent is exactly same as writing down number of gallons filled in, just with some math, because he always fills up to max number of gallons allowed to the last cent. And yes, he did zero out the odometer after refill.

I stand by my original 42mpg estimate Not completely scientific (lack of number of trials), but close enough

sheesh, you're really not getting it. gas gauges are hardly precise. in fact, many of them aren't even LINEAR. if you drive a car long enough and frequently enough, you get used to the fact that from full to 3/4 may be 150 miles, from 3/4 to 1/2 may be 100 miles, and from 1/2 to empty may be 100 miles (as it was on MY early 90's honda!). the amount that the gauge moves, even IF you could accurately judge exactly where it is on the dial, is STILL not indicative of the actual amount of gas used.

that's why you MUST start with a full tank, then completely re-fill afterwards to measure the amount of gas you used using a reasonably accurate measuring tool (the pump, which is regulated by the government).

 

[lyssword]

Originally posted by: thomsbrain

Originally posted by: lyssword

Originally posted by: redgtxdi

Originally posted by: lyssword
My brother filled up his 93 civic hatch (1.5liter) with $15 of gas @3.18 (now up to 3.25 ) which is ~4.7 gallons. His fuel gauge dipped to approximately same point as before filling gas up, and odometer reads 202 miles I was there when he pushed the button after filling up. That's about 42 miles per gallon

He drives conservatively (no sudden acceleration) with manual transmission. Our city's traffic not too bad (only slightly bad at 4-6pm), and he sometimes takes freeway to travel from one side of city to another.

Just thought I'd let you know

Except that there's a problem with your math. Well, actually not the math, but the method.

The "approximately the same point as before" doesn't work.

Here's the process that will get you the accurate MPG......

Fill up
Drive 'til tank's just safely getting low.
Fill up again & write down # of gallons it took to fill 'er back up again & divide the # of miles shown on your odometer by the # of gallons (to the 'tenths' place) it just took to fill the car up again.

Repeat 4 times over a 1 week to 1 month period. (Depending on how much you drive)

Calculate average of your MPG results from preceding fill ups & calcs.

Answer...........

Probably something closer to 30 or maybe 35 tops.

Rule #1.............don't use dollars & cents & 10ths of cents to figure actual gallons.
Rule #2...........don't approximate benchmarks on a gas gage.
Rule #3..........use a handful of full-tanks to get the right calcs.
Rule #4........prepare to have your aspirations spewed on like carbon emissions!

That's what he did. He refilled gas tank when it was almost empty (lowest line). And at 202 miles the gauge was almost exactly at the same spot. Now yes, it's not digital and super precise, but I'm usually good at estimating numbers. The 4.7 gallons he filled up with took it from lowest point to more than half a tank. Therefore the number deviation should not be more than 1/10th of total (another estimate). 1/10th precision of 5 gallons = .5 gallons. If so, 5.2 (at most) gallons would mean 39 mpg.

Also I now remember that when he filled his gas tank, he was almost running out of gas as in danger of car stopping because it was out of gas. But after 202 miles the gauge was showing a little bit of gas left over, prolly 10-20 more miles to go (est.)

Knowing the exact price and exact amount of money spent is exactly same as writing down number of gallons filled in, just with some math, because he always fills up to max number of gallons allowed to the last cent. And yes, he did zero out the odometer after refill.

I stand by my original 42mpg estimate Not completely scientific (lack of number of trials), but close enough

sheesh, you're really not getting it. gas gauges are hardly precise. in fact, many of them aren't even LINEAR. if you drive a car long enough and frequently enough, you get used to the fact that from full to 3/4 may be 150 miles, from 3/4 to 1/2 may be 100 miles, and from 1/2 to empty may be 100 miles (as it was on MY early 90's honda!). the amount that the gauge moves, even IF you could accurately judge exactly where it is on the dial, is STILL not indicative of the actual amount of gas used.

that's why you MUST start with a full tank, then re-fill afterwards to measure the amount of gas you used using a reasonably accurate measuring tool (the pump, which is regulated by the government).

Sheesh I prolly shouldn't even have mentioned that 1/2 tank = ~5 gallons.
Tank full or tank empty on gauge = same difference. Here it's tank empty. But lets use your "tank full". Is full when its above the top mark where it says "full", is it above it, or is it measured when pump auto-shuts off? If you mean pump auto shut-off then it's probably more precise. Ok fine
I'm tired and i'm going to sleep

 

[dmcowen674]

Originally posted by: mjrpes3

Originally posted by: Evadman
I get 7, so I cancel him out. I have been trying to reduce my fuel economy so I can cancel out more civics.

hey, it's your money

No, it's our money.

The gas Companies say they can't make enough gasoline (you know all those gas stations out of gas) and this guy is hogging it all and driving the prices up.

I say hang him!!!

 

[MercenaryForHire]

My '05 Civic gets >40mpg regularily, I fail to see how this is anything special as he's got a smaller engine and lighter car.

- M4H

 

[Zolty]

the CRX gets around 35-40

 

[DougK62]

Originally posted by: TuxDave

Originally posted by: AaronB
That's the most useless method of measuring mpg I have ever heard of.

 

[radioouman]

I drive a Saturn L100 currently, and it is getting around 33 mpg. Still better than most midsized cars on the road.

 

[OutHouse]

Originally posted by: AaronB
That's the most useless method of measuring mpg I have ever heard of.

yea here is how i do it.

fill tank up to the rim so no more gas will fit and reset trip counter. drive until the tank is almost empty and fill it up the rim again. then divide the miles driven into the gallons put in the car on the second fillup.

most accurate way i know of besides from hooking up flow meters and other expensive gadgets to the car.

 

[BurnItDwn]

Originally posted by: Citrix

Originally posted by: AaronB
That's the most useless method of measuring mpg I have ever heard of.

yea here is how i do it.

fill tank up to the rim so no more gas will fit and reset trip counter. drive until the tank is almost empty and fill it up the rim again. then divide the miles driven into the gallons put in the car on the second fillup.

most accurate way i know of besides from hooking up flow meters and other expensive gadgets to the car.

Agreed ....
That's how I keep track too ..
But my car gets a LOT less than 40. I tend to sit around 20mpg for my typical combined city/highway commute to/from work, and up to about 25-27 when I'm not forced to step every 3 feet due to traffic or a red light.

 

[buck]

Originally posted by: amdskip
I got 39mpg today when filling up, me hugs my 94 civic.

Right around the same for me, its old, but its in good condition, only 88,000 miles .

 

[Zenmervolt]

Originally posted by: DLeRium
The thing is newer cars are heavier and heavier. An old 1990 Corolla weighed under 2000 lbs. Now the curb weight is over 2500 lbs. The curb weight for a Camry is well over 3000 now, and it used to be under 2500. Old cars are not as safe also due to older technology incorporated and less safety features, but the other factor is weight, and as cars get bigger and heavier, simple momentum transfer will tell you who gets pwned.

Accident safety be damned, weight is the devil. You can feel weight so much and it does such terrible things to the driving dynamics and feedback that I cannot see any real point to wanting to have a car that's any heavier than it has to be.

ZV

 

[sdifox]

I drive local to work and come back on highway, I get about 11KM per litre. About 26MPG... It's a 2002 Mazda Protege 5 with a 2 litre engine.

 

[f4phantom2500]

i get like 19 highway in my '97 tahoe

 

[ColdFusion718]

My '02 accord gets about 28 MPG, is there something wrong with my car?

 

[Aikouka]

My 07 Altima got 27.15mpg yesterday when I filled it up and I do city or quasi-city (the road has some stops, but usually traffic flows well) driving. That was with air conditioning too!

EDIT: Oh and I even used manual shift mode to pass a car! That's driving out of the norm, but let me tell you, it's kind of fun shifting like you're in a video game :laugh:.

 

[lyssword]

Originally posted by: ColdFusion718
My '02 accord gets about 28 MPG, is there something wrong with my car?

Uh, no. Accord is a medium-sized sedan and more powerful (specially if it's 6 cylinder) than 93' civic, which is a small car.

 

[desy]

I had a 95
lets see, 2 door hatch,standard

no air bags
no PW
No PL
No PS
No PB
No AC
No Stereo 'til I added one'
No Cruise 'til I added'
No second mirror
No floor matts

40mpg you bet

 

[dafatha00]

Originally posted by: TuxDave

Originally posted by: AaronB
That's the most useless method of measuring mpg I have ever heard of.

 

[Evadman]

Originally posted by: Zenmervolt
weight is the devil.
ZV

/me looks at his belly