28 MPG!?

Manarius · Post by **Manarius** » Tue Aug 30, 2005 5:03 pm

4.313 Gallons; 120 miles.

120 / 4.313 = 27.9

Granted, that was not from empty..but 28 MPG!? On a 4EAT? Come on. I wonder why gas mileage gets worse the farther down the tank you go. I usually get 21. Not 28.

Tleg93 · Post by **Tleg93** » Tue Aug 30, 2005 5:58 pm

Are you filling it till you can't fill it any more, running it, then filling to the same spot again? I get around 26 on the highway when I'm not boosting or accelerating real hard.

skid542 · Post by **skid542** » Tue Aug 30, 2005 6:05 pm

I used to get around 31-32 if I wasn't running it too hard. Now I get around 25 but hopefully that'll go back up with the 'new' engine. 21 sounds pretty low to me, esspecially for an NA.

Manarius · Post by **Manarius** » Tue Aug 30, 2005 6:08 pm

Because my gas gauge doesn't work, I run to about 200-250 miles and then fill up. I consistently get 20-22 mpg. And, I don't drive like a maniac all the time...I hardly drive above 3 grand.

Post by **DLC** » Tue Aug 30, 2005 6:12 pm

I get 24-26MPG on average, usually 375 miles or more on a 16 gallon tank.

Granted, this is on an NA car with mods, but it is heavier than any 1G Legacy model. Hopefully the Random High-Flow Cat will make it more fuel efficient, powerful and noisy!

Tleg93 · Post by **Tleg93** » Tue Aug 30, 2005 6:36 pm

You got 31...in a legacy? Wow, I don't think I've ever heard of mileage that good in one of these cars. 21-3 mpg (driving hard to moderate) is what I've gotten in every legacy I've owned. Maybe I've gotten unlucky.

LaureltheQueen · Post by **LaureltheQueen** » Tue Aug 30, 2005 7:20 pm

I usually get around 19. Hopefully this turbo setup will increase my mileage a little

THAWA · Post by **THAWA** » Wed Aug 31, 2005 2:07 am

I dont see how that's possible Laurel.

vrg3 · Post by **vrg3** » Wed Aug 31, 2005 2:14 am

A less restrictive exhaust housing could improve volumetric efficiency, which should also improve thermal efficiency.

greg donovan · Post by **greg donovan** » Wed Aug 31, 2005 3:42 am

creel wrote:You got 31...in a legacy? Wow, I don't think I've ever heard of mileage that good in one of these cars. 21-3 mpg (driving hard to moderate) is what I've gotten in every legacy I've owned. Maybe I've gotten unlucky.

on the hiway in my 95 i can get 30 if i am not too much of a throttle monkey.

LaureltheQueen · Post by **LaureltheQueen** » Wed Aug 31, 2005 6:21 am

and i won't be in boost all the god damn time

THAWA · Post by **THAWA** » Wed Aug 31, 2005 7:36 am

You don't have to be on boost all the time, but you'll be making more power right? So won't you fundementally be using more fuel? If you're changing engine management I could see you theoretically being able to get better mileage in some situations though.

vrg3 · Post by **vrg3** » Wed Aug 31, 2005 1:41 pm

That's not necessarily how it works, Hardy. An engine capable of more power isn't always an engine burning more fuel.

I mean, any car makes less power when it's up in the mountains than when it's down at sea level, but it also has worse fuel economy.

LaureltheQueen · Post by **LaureltheQueen** » Wed Aug 31, 2005 5:44 pm

It's unlikely that I'll be making more power down low. And I've actually considered setting one of the boost levels at like 5 PSi for cruising around town.

vrg3 · Post by **vrg3** » Wed Aug 31, 2005 5:45 pm

What turbo are you going to use?

Almost any upgrade turbo should make more power off-boost than the stock turbo.

LaureltheQueen · Post by **LaureltheQueen** » Wed Aug 31, 2005 5:49 pm

16g TD05.

damn.

vrg3 · Post by **vrg3** » Wed Aug 31, 2005 5:53 pm

Yeah, the TD05H-16G will definitely give you more power off boost. I personally haven't seen an increase in fuel economy because I'm on high boost all the freakin' time, but I do believe Phil and maybe Matt saw mileage improve with the 16G when they drive carefully.

LaureltheQueen · Post by **LaureltheQueen** » Wed Aug 31, 2005 5:55 pm

I'm glad.

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28 MPG!?

28 MPG!?