I have a 305 TBI w/ 5 speed and get crap for mile per gallon on gas. It might be because I always rev the engine and drive in 4th on the freeway sometimes. Also it is a 91, all stock engine, and 75,000 miles on it.

What do you guys get for MPG to see how I compare??

-JAWZ

 

on long road trips, at freeway speeds for a whole tank of gas, i get 26-28, with the wind at my back, i have gotten 30 before.

around town i get 18-20.

 

I have a manual trans, should I get better or wores MPG than an Auto??

 

i have a manual, typical manuals get better milage.

 

Ya, if driven the "right" way. Unforchently I have too much fun ex. spinning tires, reving engine, and 4th gear on freeways.

 

My auto gets like 12 city, 20 highway. Thats with my mods and 3.23 gears.

 

I have 3.23 4th gen rear end swap. Is that going to make a differance from 3.08 gears??

 

well, it is going to make a diffrence, but which way, i don't know.

with 3.23 on the freeway, you may be in the 'sweet spot' where you engine is running most efficently. or you might be there with 3.08s i really don't know at what RPMvsMPH the lo3 does the best at.

 

Torque peak for the lo3 is at 2400 rpm. After that rpm, you're running more fuel to get a bit extra rpm.

so the sweet spot for comfort cruising can happen anywhere up to that rpm well enough even for 3.42 gears. For me I like to cruise around 2200-2300 rpm which is around 65-75 mph with 3.23 gears and auto 4th gear.

 

Well my rs it undoubtedly a bit out of tune and a mildly heavy foot means (with the warmer weather) i get around 14-16mpg in the city. Highway like everyone else is around 25-28mpg with about 30mpg if i have a nice tail wind.

 

I was pulling 24-25mpg on the highway, stock. Now with my mods I'm getting about 20 on the highway and about 12-14 in town. But my foot is usually in it around town.

 

22-25MPH freeway which is pretty good i guess, but it kills gas in the city.

 

I get around 17 in the city and 22 on the highway, but this is with a 350 with 65# injectors and 3.43 gears. I love the mileage I get over my friends carbed 350. He gets only about 14 on the highway and 10 in the city. TBI gives some good gas mileage.

 

i have gotten 13.7 city and 16.3 highway
check the first link in my sig for my setup

 

13.5-16 MPG in the city

 

Looks like I call into the same range as all of you 13-18 MPG city. I just wanted to make sure I was getting something really low.

 

10 city...roughly. Gears dont matter to me, I get bad mileage with 2.73's or 3.73's.

 

I've been getting 21 city! I used to get 18-19. I get about 26 highway.
I might get an LS1 car soon. I hear they can get 25city and 30+highway, and then run low 13s at the track

 

Yeah it's amazing how far V8's have come over the last 50 years.

 

Yet another reason at get a newer camaro

 

Yes a good example of technology and how you can enjoy it with $$$$$$.

 

last time on a trip my car got 29.2 going to bristol speedway with the a/c going and cruise on. only mods is k/n and gutted cat and a fresh tune- up before the trip.

not bad wish my lo5 truck could do that !
it gets 11 city 4wd 2500 series dunno about highway ?

 

Just wanted to add my 2 cents. i get about 20MPG city (just changesd TPS, IAC, MAP, ever other sensor you can thic of and the fuel pump) about 25 MPG highway.

 

Do you even want to know?

With my 2.5L TBI and 5 speed with the 14" wheels I had, it was near 27-30 MPG


with my 16 inchers I got closer to 25 MPG

 

Before I put my headers on I got ~30 mpg hiway. After the header install and full exhaust I'm now getting just over 29 mpg hiway. Not bad if you ask me and not a big difference considering changing weather conditions and traffic. Once all that is figured in I'm probably about the same as before.

 

In my 383, I just made 21mpg highway. I am running way rich , and need a lot of changes to the prom, but first I need to find a small vacuum leak I have so I stop getting code 33. I hope to be around 25-26 mpg highway once she's tuned. City milage on the other hand is hopeless.

 

In my 383, I just made 21mpg highway. I am running way rich , and need a lot of changes to the prom, but first I need to find a small vacuum leak I have so I stop getting code 33. I hope to be around 25-26 mpg highway once she's tuned. City milage on the other hand is hopeless.

 

on a good day my 'lil v6 will get:

about 18-19 mpg city,
and about 27-28 mpg hwy...

well, at least it looks cool