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-   -   New 330i ZHP getting lousy mileage (http://www.bimmerfest.com/forums/showthread.php?t=85297)

shizat63 01-23-2005 07:36 AM

New 330i ZHP getting lousy mileage
 
I was getting between 360 and 450+ per tank on my manual 325Ci. The manual 330i with 1700 miles is lucky to get 300 miles per tank at 90% highway :eek:

I broke in both engines the same way, and I drive the same way as I did in the 325. I have no performance mods. At this rate I should have just got an S4.

I thought it might be winter fuel related, but my 325 with 52K was doing fine in Dec. And it's not a small engine vs. big engine b/c the 330i EPA range is 21/30 mpg. Unless the EPA numbers are grossly inaccurate as in the hybrid Toyotas, I'm at a loss.

Is this 39.2 DME related :dunno: Anyone else getting 300 miles or less from their ZHP?

MMME30W 01-23-2005 07:49 AM

Yes, 22.4 pretty consistently.

See also:

http://www.bimmerfest.com/forums/sho...hp+gas+mileage

Nick325xiT 5spd 01-23-2005 07:51 AM

Yeesh. I'm lucky if I get 200 miles out of a fuel tank. Quit yer whinin'!

MMME30W 01-23-2005 07:52 AM

Quote:

Originally Posted by Nick325xiT 5spd
Yeesh. I'm lucky if I get 200 miles out of a fuel tank. Quit yer whinin'!

:rofl:

LDV330i 01-23-2005 07:58 AM

Quote:

Originally Posted by shizat63
I was getting between 360 and 450+ per tank on my manual 325Ci. The manual 330i with 1700 miles is lucky to get 300 miles per tank at 90% highway :eek:

I broke in both engines the same way, and I drive the same way as I did in the 325. I have no performance mods. At this rate I should have just got an S4.

I thought it might be winter fuel related, but my 325 with 52K was doing fine in Dec. And it's not a small engine vs. big engine b/c the 330i EPA range is 21/30 mpg. Unless the EPA numbers are grossly inaccurate as in the hybrid Toyotas, I'm at a loss.

Is this 39.2 DME related :dunno: Anyone else getting 300 miles or less from their ZHP?

I refill my gas tank at about 270 miles with 1 gallon left. The overall gas mileage for my car since new (10,000 miles) is 18.5 miles per gallon. This has been mostly city driving. In my out of town trips of pure freeway driving I have been able to get about 360 miles out of a tank. Your mileage will increase as the engine becomes less tight with additional mileage.

You must have had a "special" 325. My 318ti with the A/C on gave me 21 MPG for the same kind of normal driving as my 330i.:dunno:

ChosenGSR 01-23-2005 08:08 AM

I average around 22 on mine :dunno:

alpinewhite325i 01-23-2005 08:19 AM

Quote:

Originally Posted by shizat63
I was getting between 360 and 450+ per tank on my manual 325Ci. The manual 330i with 1700 miles is lucky to get 300 miles per tank at 90% highway :eek:

I broke in both engines the same way, and I drive the same way as I did in the 325. I have no performance mods. At this rate I should have just got an S4.

I thought it might be winter fuel related, but my 325 with 52K was doing fine in Dec. And it's not a small engine vs. big engine b/c the 330i EPA range is 21/30 mpg. Unless the EPA numbers are grossly inaccurate as in the hybrid Toyotas, I'm at a loss.

Is this 39.2 DME related :dunno: Anyone else getting 300 miles or less from their ZHP?

Are you saying you picked the 330 over the S4 based on gas mileage alone?

I hope the day never comes that I choose my car based on gas mileage!!

xspeedy 01-23-2005 08:23 AM

Try my X3 2.5. I only get about 18 mpg with a mix of city/hwy (mostly hwy).

shizat63 01-23-2005 08:25 AM

Quote:

Originally Posted by alpinewhite325i
Are you saying you picked the 330 over the S4 based on gas mileage alone?

I hope the day never comes that I choose my car based on gas mileage!!

Hell no. But I put on 25K+ per year so mpg is a factor, especially as prices go to $2.50 and up for 93.

And you just can't beat displacement + low end torque.

cwsqbm 01-23-2005 08:29 AM

Quote:

Originally Posted by LDV330i
I refill my gas tank at about 270 miles with 1 gallon left. The overall gas mileage for my car since new (10,000 miles) is 18.5 miles per gallon. This has been mostly city driving. In my out of town trips of pure freeway driving I have been able to get about 360 miles out of a tank. Your mileage will increase as the engine becomes less tight with additional mileage.

You must have had a "special" 325. My 318ti with the A/C on gave me 21 MPG for the same kind of normal driving as my 330i.:dunno:

I'm surprised that a ZHP gets that much worse mileage than a standard 330. On long highway trips with around 75 mph average, I see over 30mpg on the OBC, with results backed up by manual calculations; range indicated upwards of 450 miles. Even in Europe with a green engine, I averaged 25.5 mpg with a mix of city driving and very high speed Autobahn/Autoroute driving.

xspeedy 01-23-2005 08:48 AM

Quote:

Originally Posted by rumratt
It's the heavy ZHP wheels. :p

Forgot to put in the special ZHP gas?

just kidding.

cwsqbm 01-23-2005 08:53 AM

Quote:

Originally Posted by rumratt
It's the heavy ZHP wheels. :p

That's no excuse. I've got the 18" type 71's, which IIRC are heavier than the type 135s. I would expect the different rear end to make a little difference, but not that much. I loose less than 2mpg from shifting from 6th to 5th, which would still give me a range over 400 miles.

RChoudry 01-23-2005 09:02 AM

my 330i and 330ci both got 25 mpg combined but the 330i PP I just got rid of got 21-22 mpg. I also noticed this difference.

Alex Baumann 01-23-2005 09:04 AM

Quote:

Originally Posted by rumratt
If I set the cruise control on flat highway, I get better than 30 MPH according to the OBC.

When I use the gas pedal, my average is almost always between 18--21

That is what I've noticed too, cruise control is more economical than the right feet.

Roadhawk 01-23-2005 09:32 AM

I've noticed a great variation city versus highway driving in both the 330 (ZHP) and the S4. 330 is noticibly better on gas then the S4 in both situatuions but more noticible in city/mixed driving. In purely city type driving where I am pretty much trying to make good time (always) I get about 14-16 MPG in the S4 where I'm more like 18-20 in the 330. There are times when I accelerate hard in the S4 to cross a very busy street and such where I look down and it seems that the gas gauge is dropping before my eyes! On the highway I haven't calculated my mileage in the 330 but I get noticibly more per tank - well over 300 miles I'm sure of that...and the S4 makes a dramatic improvement as well - even when there are 4 of us in the car - full of luggage and where I'm cruising 80-110 mph as we did returning from the Poconos just before New Years (less then 4 hrs door to door...Strasborg PA to N VA [near Dulles airport]). Got about 26 MPG - which I'm quite happy with. The 330 seems noticibly stingier in all occasions. Unlike the predictions though - I'm finding my mileage is not as good now (6600 miles on the odo) then it was initially....perhaps I'm pushing it harder 9again - always....!)...don't know...

car_for_mom 01-23-2005 09:48 AM

Weeeelll, sometimes Karl Bimmer (2003 325i) gets 340 miles to the tank, sometimes 360, and every oncet in a while 390-400.

I've noticed that if I do a lot of freeway driving right after I fill up, I get waaay better mileage overall - if I'm on the freeway a lot the first 1 or 2 days after I fill up, even if I do a lot of city driving the rest of the week, my mileage is pretty good.

On the other hand, if I fill up, then do a lot of short trips around the Land Of Bovine Living Also Known As Chino Hills, then hit the freeways 3-4 days later, my overall mileage goes down. :dunno:

Moderato 01-23-2005 11:28 AM

I usually get 21 - 25 mpg overall in my 330 depending on how I drive, also I noticed a I lost a couple mpg's when I put on the snow tires. When I fill up the car usually takes around 14 gallons and I'll get anywhere from 300 - 350 on the tank. This about 60% highway 40% city.

I think when the car breaks in more, you'll see an improvement in gas mileage.

I don't know if the B6 S4 would feel that much better then the ZHP when it comes to low end torque, because even though the engine has more torque then the ZHP, it is also id driving 4 wheels and it weighs like 500lbs. more then then ZHP.

Nick325xiT 5spd 01-23-2005 11:30 AM

Quote:

Originally Posted by rumratt
14. Ouch.

Hey, that's awesome. I get 13. :)

allaboutme 01-23-2005 12:43 PM

Quote:

Originally Posted by Nick325xiT 5spd
Hey, that's awesome. I get 13. :)

Is that track driving or city?
I get 16 right now according to the obc which means I'm actually doing even worse, and I have a 330. I guess I have a lead foot.

schreck 01-23-2005 01:09 PM

I get like 16-17 mpg in my contour with all city driving. I drive it hard, but not that hard. I am suprised how much the milage can change..I wonder if it's just because it's so old or because it has 162,000 miles. I hate it.

Kaz 01-23-2005 01:23 PM

How the heck did you get 450+ miles out of a 325? I could push mine down a hill and there's no way mine will do that.

shizat63 01-23-2005 01:52 PM

Quote:

Originally Posted by Kaz
How the heck did you get 450+ miles out of a 325? I could push mine down a hill and there's no way mine will do that.

100% highway, mostly flat, keeping it under 85mph, actually watching the mpg gauge to learn to use the throttle as parsimoniously as possible.

Not sure how accurate the mpg gauge really is, but if you lift up on the throttle ever so slightly, you'll see the needle go over 30 w/o any loss in RPMs or speed.

Moderato 01-23-2005 02:00 PM

Quote:

Originally Posted by shizat63
100% highway, mostly flat, keeping it under 85mph, actually watching the mpg gauge to learn to use the throttle as parsimoniously as possible.

Not sure how accurate the mpg gauge really is, but if you lift up on the throttle ever so slightly, you'll see the needle go over 30 w/o any loss in RPMs or speed.


Yeah but there's no hills in NJ, that makes a BIG difference even on the highways. (Unless you're in the NorthWest corner.) To get 450 miles on a tank of gas is almost 32mpg if you take 14 gallons when you fill up, either that or you wait until there's nothing but fumes left in the tank!

allaboutme 01-23-2005 02:36 PM

Quote:

Originally Posted by Moderato
Yeah but there's no hills in NJ, that makes a BIG difference even on the highways. (Unless you're in the NorthWest corner.) To get 450 miles on a tank of gas is almost 32mpg if you take 14 gallons when you fill up, either that or you wait until there's nothing but fumes left in the tank!

Quote:

Originally Posted by shizat63
100% highway, mostly flat, keeping it under 85mph, actually watching the mpg gauge to learn to use the throttle as parsimoniously as possible.

Not sure how accurate the mpg gauge really is, but if you lift up on the throttle ever so slightly, you'll see the needle go over 30 w/o any loss in RPMs or speed.

On my trip to bimmerfest last year, I got 450+ miles out one tank of gas never using cruise control. Cruise control seems to waste more gas than it saves. When I filled up, I think it was about 15 gallons. I also wasted some gas in the city before hitting the freeway for Santa Barbara.

Oh, and I'm with shizat63 in using the mpg gauge. It's taught me to use my throttle a little better, although it takes a lot of concentration. I rather just keep up with traffic, but when the streets are empty or I'm in the mood, watching that mpg gauge allows me to bring the mpg up.

Double Vanos 01-23-2005 03:44 PM

I average about 22mpg in the city, 20mpg during "Spirited Driving", and about 26-27mpg on the highway, to me that seems about right. Yeah my 325Ci average 22 in the city and 30 on the highway.


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