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View Full Version : Apparently I'm driving a hybrid...



CaSp3r9
06-07-2007, 02:28 AM
If I didn't know any better, I'd come to the conclusion that my car is a hybrid. I went 160 miles (at 75mph on the highway) and only used 1/4 tank. 1/4 tank in a 1.8t is less than 4 gallons of gas. Assuming that it's 4 gallons of gas it equates to 40mpg...? Wtf? My record is 430 miles to the tank on an all highway road trip.

http://img2.putfile.com/main/6/15705235949.jpg

aytheory
06-07-2007, 02:40 AM
ahahha - those things are not precise - for my car 1/4 a tank is like 5-6 gallons

gotaudi
06-07-2007, 02:44 AM
crackhead west coast people...... we are all up at 2:45 in the morning.....

I am going back to study for my structures test for tomorrow.....

oh yeah and the first half of the tank takes a longer time to go through than the latter half.

CaSp3r9
06-07-2007, 03:29 AM
crackhead west coast people...... we are all up at 2:45 in the morning.....

I am going back to study for my structures test for tomorrow.....

oh yeah and the first half of the tank takes a longer time to go through than the latter half.

Hahah now it's 3:30! [:D] I just got done studying so I have an excuse to be up, I guess you do too. And yeah, I know the first half takes longer to go through but I'm still getting decent mileage! [drive]

mike-2ptzero
06-07-2007, 07:13 AM
Should have pulled over to a gas station and filled it back up to see exactly how much fuel you really used. The gauge is never going to be really correct, hell you could get to half tank and the gauge fall to E in a few miles.

jaredpgh
06-07-2007, 07:18 AM
it's a human factors technique. most drivers want to get the most out of the first and last quarters of a tank, and don't notice how quickly it sweeps through the middle two quarters. you feel pretty good now, right? well when you get about 80 or 100 miles out of the last quarter you'll feel just as good.

CaSp3r9
06-07-2007, 07:52 AM
Should have pulled over to a gas station and filled it back up to see exactly how much fuel you really used. The gauge is never going to be really correct, hell you could get to half tank and the gauge fall to E in a few miles.

Good call, I might just do that... I'm sure it's closer to 5-6 gallons. But even then that's right around 28-30 mpg which isn't bad considering I was going 75-80 mph the whole way ~ 3400-3600 rpm's

CaSp3r9
06-07-2007, 07:53 AM
it's a human factors technique. most drivers want to get the most out of the first and last quarters of a tank, and don't notice how quickly it sweeps through the middle two quarters. you feel pretty good now, right? well when you get about 80 or 100 miles out of the last quarter you'll feel just as good.

Haha I know the second half of the tank always seems to magically disappear much faster than the first half [:p]

maxspeed
06-07-2007, 08:02 AM
i made it 230 miles on a 1/2 tank of gas. cruise control set to 70. it makes since if you look at your partle throttle a/f ratios'. 14.7:1, or there abouts.

RudeBwoi
06-07-2007, 08:04 AM
mayb he had a tailwind while drafting an 18 wheeler....?

a4fann
06-07-2007, 10:32 AM
mayb he had a tailwind while drafting an 18 wheeler....?

= rock chip mania.

aytheory
06-07-2007, 10:44 AM
drafting behind 18 wheelers are a myth - ahahah it is more dangerous then practical - not only rock chips but having to driving slow as hell

snoop
06-07-2007, 11:14 AM
fuel here in the uk is £1 a litre, i stuck £20 in last week and it took the gauge up to bang on half tank, i got 145 miles from that mixed driving, (32.9 mpg) i was pleased with that. i havent filled her up in years. weight reduction mod. =) but i remember as others have said that first half tank lasts so much longer.

Alan
06-07-2007, 11:21 AM
My guages are so inaccurate. I never know how much fuel I have. yesterday I went from 3/4-1/2-E-3/4-5/8 in like 10 minutes.

tamadrumr88
06-07-2007, 11:22 AM
the gas guage is not linear... according to the gas guage, mpg decreases exponentially but this is not true... this is because most drivers dont let their tank go past half, and it always looks as if youre getting very very very good gas mileage

i usually get about 120-130 for the first 1/4, about 100 more for the second 1/4, maybe 80 for the third 1/4, and if im lucky about 30-50 for the last quarter

if youre parked/driving uphill your gas gauge increase and if youre pointed downhill it will seemingly decrease

brlukosk
06-07-2007, 11:44 AM
drafting behind 18 wheelers are a myth - ahahah it is more dangerous then practical - not only rock chips but having to driving slow as hell

Aparently you didnt watch mythbusters last night.

Myth was confirmed.

speedydragon
06-07-2007, 01:50 PM
lol i have 280 on my odo with half tank left on my celica :]; 155 on odo with 3/4 left on the audi

onemoremile
06-07-2007, 02:43 PM
I got 420 miles out of my last tank. the DTE display showed 15 left.
I used to drive 860 miles from my house to Lincoln Alabama with only two fillups. I'd leave with a full tank, fill up in Louisville at noon, and fill up again East of Birmingham. Averages were between 32 and 34 wth the cruise at 75 and the AC on.

GR-RALLYE
06-07-2007, 04:34 PM
Aparently you didnt watch mythbusters last night.

Myth was confirmed.

yeah you can draft and get like 10% better mpg 100ft behind a semi

CaSp3r9
06-07-2007, 04:40 PM
yeah you can draft and get like 10% better mpg 100ft behind a semi

Interesting... I'd like to try that sometime but my car would get owned by rocks and I'd probably be doing 10-15 under the speed limit which would drive me insane.

seatown88
06-07-2007, 06:31 PM
yeah you can draft and get like 10% better mpg 100ft behind a semi

the best amount to draft a semi was what, 10 ft with a high 30% increase in gas milage or something, but two feet away and it went back down. haha i was almost tempted to draft some trucks but decided that 50 ft was good enough for me

seatown88
06-07-2007, 06:33 PM
My guages are so inaccurate. I never know how much fuel I have. yesterday I went from 3/4-1/2-E-3/4-5/8 in like 10 minutes.

+1
and also with the first half i can go 200 miles, the last half only about 100 miles til im on e but i have about 2.5 gallons left

Trv06kviper
06-07-2007, 06:39 PM
I drove from Emeryville to Prunedale on a quarter tank of gas. When i reached Gilroy the light came on saying I'd be empty in ~2.5 miles. I coasted in neutral (for god knows how long) and made it to the gas station on Vera Canyon Rd in Prunedale/Salinas. Gas sipper confirmed ! Hybrid, think our cars are made cleaner than most hybrids.

tamadrumr88
06-07-2007, 10:04 PM
you get better gas mileage engine braking (near 0% fuel, the wheels are keeping the engine from dying) than you would coasting (small amount of fuel needed to keep the car idling).... its all about watching ahead [up]

Militant-Grunt
06-07-2007, 10:08 PM
Wow, you guys get good MPG, the most I ever got out of a 1/4 tank was 100mpg, and 350 out of a whole tank with combined driving of highway and city. And that was REALLY trying, considering my foot is made of lead in a cast iron casing.

turboquattro
06-07-2007, 10:19 PM
they cant be correct because it said on my I had 0 miles left and my guage was all the way over and i still went 5 miles to the next gas station!

onemoremile
06-08-2007, 07:21 AM
It drops to zero with 10-20 miles left so that it creates a sense of urgency without leaving you stranded. Whenever I got a different car I would fill the lawmower's gas can and put it in the trunk. Then drive until the gas light came on and until the engine died. Then I knew the range after the light came on and how the gauge read relative to the actual fuel amount.

mike-2ptzero
06-08-2007, 08:15 AM
I drove from Emeryville to Prunedale on a quarter tank of gas. When i reached Gilroy the light came on saying I'd be empty in ~2.5 miles. I coasted in neutral (for god knows how long) and made it to the gas station on Vera Canyon Rd in Prunedale/Salinas. Gas sipper confirmed ! Hybrid, think our cars are made cleaner than most hybrids.

Hybrid would do circles around our car and still get better MPG even on the fwy and the hybrid really gets its best MPG in the city where it uses the electric motor more often for the lower speeds driven.

Even my XA(not a hybrid) gets better MPG on its worse day(36-38) then any my A4 would ever get on its best day(30+).



It drops to zero with 10-20 miles left so that it creates a sense of urgency without leaving you stranded. Whenever I got a different car I would fill the lawmower's gas can and put it in the trunk. Then drive until the gas light came on and until the engine died. Then I knew the range after the light came on and how the gauge read relative to the actual fuel amount.


It says zero and the light comes on because it does not factor in the reserve fuel which is in the system. Plus the fact that the floater is not meant or made to drop to the bottom surface of the tank so it is never going to tell you exactly when the tank is completely empty. Then there is the fuel in the fuel lines too which is being pumped thru the system all the time.

quattrojunky99
06-08-2007, 09:10 AM
My gas gauge is definetly not accurate as after I have drove for a few miles it shows I have more gas than when I started. Or I'll drive for 50 miles without the gauge moving and then I come back and start it again and it has droped 1/8th of a tank down. I get 25 mpg constant though and fill up at 300 miles so who needs it.

e.van
06-08-2007, 09:15 AM
That's about where I am visually, but the guage is broken as all hell in my opinion... lol. I usually get about 400 miles off a tank of gas, which includes a lot of highway driving and some city driving.

400 miles / 14 gallons = 28.5mpg avg.

onemoremile
06-08-2007, 11:09 AM
The fuel sender is known to get worse over time. Some folks have gauges that have completely lost their minds. Mine would get down to half a tank and then fall straight to empty. I replaced the sender because the gas warning popping up all the time got old.