12mpg...Sound about right w/ 4.10s + roof rack?

[audiquattrot]

NO it doesn't. Roof rack won't make you go down to fucking 12mpg. Something is very wrong here, the car is consuming twice as much fuel as it should be. A roof rack is worth what... maybe 2mpg. On the highway. With dead hookers stacked on it. Not a whole lot of frontal area added.

I'm with him. There's something else at play here.

I was gonna say, its not like i'm a 300lb dude lol.

Have you done a stomp test to see what codes are stored?
If the CEL flashed a code should be stored.

a ha! now we're getting somewhere. I had no idea about the 'stomp test'. Just did it now, and it looks like this is the code:

1221
EGO Sensor #1 - 1221 - Fault related to Oxygen ( O2 ) sensor is present if the sensor is unplugged, bad / not-operational, or sensor values are out of range. Test the O2 sensor for proper operation, as well as check harness connections by the sensor and by the battery tray in the engine compartment.

now its making sense. Good thing is I ordered a new O2 sensor last night.....hoping this is all it is! Thank you for this!

[PorscheDude]

Have you done a stomp test to see what codes are stored?
If the CEL flashed a code should be stored.

[unevolved]

NO it doesn't. Roof rack won't make you go down to fucking 12mpg. Something is very wrong here, the car is consuming twice as much fuel as it should be. A roof rack is worth what... maybe 2mpg. On the highway. With dead hookers stacked on it. Not a whole lot of frontal area added.

I'm with him. There's something else at play here.

[Wh33lhop]

i would go take exhaust gas test.. it tells a lot.. also your roof rack shape matters a lot.. how high is it?

NO it doesn't. Roof rack won't make you go down to fucking 12mpg. Something is very wrong here, the car is consuming twice as much fuel as it should be. A roof rack is worth what... maybe 2mpg. On the highway. With dead hookers stacked on it. Not a whole lot of frontal area added.

[audiquattrot]

Do you have a fairing?

Not that wind noise is exactly a quantitative measure of how much drag is being created, but with the sunroof rolled back I noticed a significant increase in noise without my fairing on.

i don't use a fairing. I had one on my old Audi and saw increased drag + noise with it on....so i chose not to use one w/ the E30.

[nickflic3]

Do you have a fairing?

Not that wind noise is exactly a quantitative measure of how much drag is being created, but with the sunroof rolled back I noticed a significant increase in noise without my fairing on.

[audiquattrot]

i would go take exhaust gas test.. it tells a lot.. also your roof rack shape matters a lot.. how high is it?

i have the yakima round bar racks. It sits about 6inches above the roof.

[jute91]

i would go take exhaust gas test.. it tells a lot.. also your roof rack shape matters a lot.. how high is it?

[nando]

glad to hear I was worried that I was going to loose all of my money on gas on my 5 speed swap

You're going from a 3.91 to a 4.10.. its not much of a difference.

[audiquattrot]

also check for fuel tank leaks

initially this is what i was looking for since i had an issue w/ my last iX leaking gas from the tank.....but that car had a strong odor of gas coming from inside and outside the car (esp when i filled up). My current one doesn't show any signs of leaking coming from the tank but I'll def keep it in mind.

[mclawrence]

also check for fuel tank leaks

[Dirty325ix]

I've got 4.10s in a 5 speed and I get 22 average here in colorado. I'd get an 02 sensor and maybe clean the fuel injectors or change spark plugs.

Click the link for stats on my cars mileage over the past 3 years

http://www.fuelly.com/driver/downforce22/325ix

glad to hear I was worried that I was going to loose all of my money on gas on my 5 speed swap

[downforce22]

I just changed my oil and I noticed my mileage is better this tank.

[audiquattrot]

12Mpg isnt normal in any condition. I get 19-21 hwy with a thirsty stroker and 4.10s. Even city driving is never less than 16-17.

i'm jealous. Hopefully i can solve this sooner than later. Driving the E30 400+ miles a week to/from work, filling up twice weekly is def taking quite a hit on the wallet.

[nando]

12Mpg isnt normal in any condition. I get 19-21 hwy with a thirsty stroker and 4.10s. Even city driving is never less than 16-17.