Gas Mileage? Options

[dstock22]

What kind of gas mileage do you guys get? My 92 TSi FWD automatic gets 12mpg when I've got my foot in it. I havn't calculated what it gets regular driving cuse I can't seem to keep my foot out of it....

[AWD DSM 1]

I saw 27 pretty regular out of my 93 GSX 5spd back in the day...

[cjk123]

I get around 22 out of my laster rst 5sp driving regular

[awd4kicks]

I always got 22-23mpg out of my 92 AWD from the time it was running 15's to the time it was running 12's. Having my foot in it made very little difference in the average and that always amazed me. My 90 FWD gets 23-24mpg average.

[90GSX]

I got about 24 out of my GSX when i bought it, and my o2 sensor went dead which dropped to still getting about 21-22. This of course when it was still running.

[black92_tsi_awd]

I get about 22-25 in my 92 TSI, but it's relatively stock.

[twisted ranger]

I usually get 30-35 out of my tsi. It was worse when I was running 93 octane. I recently found out the hard way that just because 90's and some 91's only say "Unleaded fuel only" on the dash, it doesn't mean I can run 87 all the time. Burning up cyl 3 is what I get for saving a little at the pump.

[KOU In3]

dstock22- Chances are that you need to replace your O2 sensor. I'd reccomend logging it to verify but it is the most likely culprit of your poor gas mileage.

[dstock22]

hmmm possibly, but 12 miles to the gallon in a damn 4banger..... that is worse than almost every v8, i know the turbo makes a diff. but damn, that much of a difference?

[natedogg]

I get about 23 mpg in the Evo. I don't even want to hazard a guess for the Talon. I agree with KOU, you may need a new O2 sensor.

[dstock22]

well if that is what my problem is, how much is a new one and is it hard to install? i'm new to these cars so I don't know a whole lot about them

[natedogg]

You can get them fairly inexpensively from autozone. Not too hard to install. Getting the old one out is usually the hardest part because its usually frozen pretty well in the O2 housing. You'll need a wrench that will fit the O2 sensor (22 mm I think, not positive though) and plenty of PB Blaster or the like. It might be easier if the wrench has a swivel end also. I haven't had a stock O2 housing in quite a while, but if I remember right just getting the wrench on the O2 sensor in the stock housing can be cause for some contortion.

[smrtkd69]

i was getting around that when i was running the walbro fuel gushing biotch pump and the little squirtin 450's with a leaky stocker dp and a ignition that soon after took a big crap. o yeah and the o2 was coated in a nice black charcoal turd when i finally removed it.

[SCCA Stang]

I get 22-24 in my GSX even with the mods... 12 is rediculous.... I agree w/ the O2 sensor theory, i believe they are between $100 and $120 at advance or auto zone...
Zone also does loan-a-tool on the O2 sensor removal tool and Advance sells them for like $12, but if the sensor is too frozen you may end up just stripping the head on the sensor... but the tool is very handy for the install (it has a slot for the wire to go in) hint: 12 point deep well sockets allow room for the wire too.

[xian 1g]

You should stick to OEM O2's, or atleast DO NOT get a BOSCH. KOU in3 and Spooled91 will back this up. Bosch tends throw all sorts of problems at DSM's.

Get the special tool.

[AWD DSM 1]

I've got a couple used stockers if you want to give one a try... not sure if they're any good or not, but you're welcome to try one.

[JMoushon]

On average, I get 18-22. Keep in mind that I run a 9:1 bottom end and have the AFC set at +10% across the board during the winter. On the other hand, when running 22psi and 110 leaded, I got 130 miles out of a tank during a long night of tuning and racing, so figure about 8mpg. You will also get less mpg in the colder weather.

[natedogg]

You youngin's and your fanshy special tools. Back in my day we used ta take entire engines apart with our bare hands. 'Cept fer ole Toesy. He lost his hands in a fight with some siamese twins and had use is feet from then on.

[haunter]

You youngin's and your fanshy special tools. Back in my day we used ta take entire engines apart with our bare hands. 'Cept fer ole Toesy. He lost his hands in a fight with some siamese twins and had use is feet from then on.

[dstock22]

oh cold weather makes it worse.... maybe that is my problem, it is pretty cold here in southern IL

[marksgsx]

I normally get 17-19 around town and i have gotton 25-28 hwy.Thats with a fully built engine and a super small these days big 16g turbo.But i got a pte scm32 i got to put on in the spring time.

[The Iron Goat]

I get about 20-22 on my TSi. For that O2 sensor, before you try to yank it, I've found it helpful to go run the car for a bit to heat up the O2 housing.

If there's enough room for the tool and your hands without getting burned, that usually makes it a bit easier to take out.

[TotalEclipse97]

i got a 32 once....it was my Gst on the interstate. i just got the 2.4L swap and i've been getting about 22-25 in town on 450's and a 255fp.

[dstock22]

Ok, so I'm still new when it comes to these cars. Where is this damn o2 sensor, how excatly will I know if its bad, any other tricks/tools I need to know on how to get 'r out?

This 12mpg thing has got to stop, even on the highway its that bad, if I'm luck I'll get 13 or so..... HORRIBLE, and this is starting to kill my pocket money, grrr.

[JMoushon]

The o2 sensor is _gasp_ on the o2 sensor housing. Look at your exhaust manifold heat shield, and it will be on the right hand side. It is the cast iron elbow that connects the exhaust housing of the turbo to the downpipe. The o2 sensor is sticking out of it at an upward angle. Shoot it with penetrating lube a couple days before you try to remove it, helps lots. After that, unless you have an o2 sensor socket, it's a matter of finding a way to get a wrench on it.

[dstock22]

ok, but how will I know if its bad or not?

[ncgalant]

You can't tell by looking at it. If you had a datalogger you would notice your fuel trims all maxed in the + direction. If you have over 100k on the car it needs replaced anyway, just do it.

[dstock22]

heh, i have almost 57k over 100k.....