gas mileage difference

ChadCy75 · 12-04-2009, 05:24 PM

I was just curious if anyone knows how big of a difference in gas mileage there is between an Alero with the 3400 and a Buick Park Avenue with the 3800? Any major differences in the power? I'm guessing there won't be too much of a difference, seeing as how they are both 90 degree V6's, but even so, if anybody actually knows the difference, I would appreciate your knowledge!

Bad99Olds · 12-04-2009, 05:37 PM

Um, the LA1 is a 60 degree engine....

Malibu369258 · 12-04-2009, 05:49 PM

Check out this gov't site, it'll give you a rough estimate your looking for. Plus you can look up other cars you got mpg questions about.

http://www.fueleconomy.gov/feg/calculatorSelectYear.jsp

AndyT3 · 12-04-2009, 06:02 PM

Thanks for that link!

jayson_waltz · 12-04-2009, 08:06 PM

the 3.4 is a 60 degreee V6 btw. but they get about the same mileage really.

Chipmunk-Alero · 12-04-2009, 08:20 PM

This guy has a 90 degree 3.4 and pappa smurf has the V4, wow what else can you get in an alero???

Bad99Olds · 12-04-2009, 11:09 PM

Quote:

Originally Posted by Bad99Olds

Um, the LA1 is a 60 degree engine....

Quote:

Originally Posted by jayson_waltz

the 3.4 is a 60 degreee V6 btw. but they get about the same mileage really.

beat you to it.. hahaha

ChadCy75 · 12-06-2009, 05:19 PM

Chipmunks roasting on an open fire.......

ChadCy75 · 12-06-2009, 05:28 PM

Thanks for the info. That's what I was more or less thinking, since both motors are GM V6's, but sometimes it can be a huge difference in the MPG's. Also, those with the 3400 motor, where is your tachometer when you go through those first few gears? I only ask, because my Alero hits about 3100 RPM, where as my dad's car, a Buick with a 3800 only hits about 2500, at the most. My cousin has a Pontiac Montana van with the 3400 motor, and it changes gears somewhere around 2500 RPM also. Any info about this?

Lucalare · 06-06-2010, 07:45 PM

sorry to give the obvious answer Chad, but that has a lot to do with how much throttle you give, more throttle=higher shifter point

Also i went to that calculator site, and i don't know about anyone else, but i get around 34-36 to the gallon usually if i keep it at 65 (yes with the LA1). not really sure how i do it, but it might have something to do with the CAI and pacesetter Cat-back i've put on it

cherrington17 · 06-06-2010, 08:38 PM

those shift points aren't the engine, its the transmission, and where the points are programmed into the pcm.

with "hptuners" you can change those, if you wanted to.

AXLE · 06-12-2010, 09:14 AM

Quote:

Originally Posted by Lucalare

sorry to give the obvious answer Chad, but that has a lot to do with how much throttle you give, more throttle=higher shifter point

Also i went to that calculator site, and i don't know about anyone else, but i get around 34-36 to the gallon usually if i keep it at 65 (yes with the LA1). not really sure how i do it, but it might have something to do with the CAI and pacesetter Cat-back i've put on it

Wow, I like those numbers. I can baby mine and still get only 28.5 MPG. I would gladly do those mods for the improved mileage.

Lucalare · 06-12-2010, 10:02 AM

well, i'm not sure though, because i got 32 once back when it was still stock. I guess i got a winner.

AlbinoMonkeyRat · 06-12-2010, 01:56 PM

heh...that link says I should be getting 28 Highway. I'm getting that on average, and I thought I was doing bad. lol nice.

cherrington17 · 06-12-2010, 02:15 PM

old rules (when i bought it) i should have got : 20 city... 29 hwy.

new rules: 18 city... 27 hwy.

i average 26.5ish. I speed (65+) and am outta alignment. I'd say i'm doing ok.

wrestlingandrunning · 06-12-2010, 03:02 PM

I got 21mpg on my last tank

I don't drive it hard either.