Xoutpost.com - Really bad MPG since winter hit??

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- - Really bad MPG since winter hit?? (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/95189-really-bad-mpg-since-winter-hit.html)

ProfessorX5

12-16-2013 11:16 PM

Odd, my 3.0 gets somewhere close to 800km per tank. It might be that I coast as much as I can and accelerate gradually. I haven't event started doing my mad scientist mods yet. :thumbup:

I once got 35 mpg in a 1/2 ton pickup, but I also caused a bad misfire, and some of my experiments have been... catastrophic. :D

I'll go middle ground on the X and let you guys know if I get any good results.

admranger

12-17-2013 12:17 AM

Do you guys get the oxygenated gas up north? We get it with MTBE in it and that zaps mileage.

Clockwork

12-17-2013 12:22 AM

moezer, I have noticed a huge decrease too but mainly because i've been running my x5 to heat up till i drive it away since its been parked outside so far this winter as the new garage is not uilt yet. I also moved from Airdrie to inner calgary and my kms/tank have gone from 650kms/tank to 450 kms/tank now :(
its crappy the winter we've had so far.

Clockwork

12-17-2013 12:28 AM

Quote:

Originally Posted by ukrcan (Post 969854)

Moe, I am not sure how you were getting 800km+ in the city... i never get more than 750-800km on a highway when driving at around 90-100km/h... but to get 800 in the city... i've never heard of anyone getting anything even close to that... in a diesel maybe but not with a 4.4... i average about 500 km in the city (i do have a heavy foot) but in order to get 800 you would need to get around 10l-11l/100km at most... i think our cars are rated at 15-16l/100km in the city and 12 on the highway...
And i do get a bit of decrease in fuel consumption, but nothing significant

ukrcan, i get the exact same kms/tank as you.

puddinboo

12-17-2013 01:28 AM

city in the winter I get 15.5/100km, city in summer about 14/100km, highway in summer about 10.4/100km

omodos

12-17-2013 04:14 AM

Quote:

Originally Posted by Rockit (Post 969737)

Any fuel injected vehicle tend to run richer in the winter. Install of bottle of this to make sure your injectors are clean. My gas mileage jumped after a bottle of this and a full tank run through.
LIQUI MOLY - Motor Oils, Additives, Car Care - Products - Fuel Injection Cleaner

As a 3.0d owner shouldn't really be posting here, but I used redex additive yesterday when i filled up and my consumption went up from 29.2mile per gallon to 33.1 mpg....I guess the additive must have done something as nothing else has changed on the vehicle, and the gas station and fuel i use is the one i always use.....

Moezer

12-17-2013 05:02 AM

Quote:

Originally Posted by Clockwork (Post 970063)

I was surprised by the x5 when I got it and I saw it was getting almost 800+ at 1/4 before the light lit up, in fact I was happy as hell when people asked me "oh wow 4.4 v8 must be a gas drinker" I loved the look on there face when I told them I was getting around 800km to a tank lol

Im going to see after I put the sea foam in it what I get on this tank.

the thing is on my 2002 jeep tj I have always gotten around 300kms a tank winter or summer so when I saw the difference in the x5i noticed a crack in my visa :bustingup

ukrcan

12-17-2013 12:57 PM

Quote:

Originally Posted by Moezer (Post 969875)

i put air in the back 2 tires tonight, my wife drives the x5 mostly and i tell you she has a light foot lol

ukrcan, lol in the summer days i was getting 650 to 750 with 1/4 left in the tank my dash reading thingy was reading 11.2L per 100 kms and with 1/4 tank left the dash was reading 160+ kms to E lol now its around 13.5L to 100kms :S

whats shocking to me is that my 2002 jeep tj inline 6 gets the same damn mileage year round 300 to 350 if i push it to 350 lol along with my 328i in the city i get 450 to 550 and over 800 kms highway, but seeing the x5 average 450 and the light comes on just makes me cringe from what it got in the summer damn

wow 11.2L per 100kms... you gotta tell me how you do it... do you do a lot of highway driving?

Moezer

12-17-2013 01:25 PM

Quote:

Originally Posted by ukrcan (Post 970131)

wow 11.2L per 100kms... you gotta tell me how you do it... do you do a lot of highway driving?

deer foot? when my wifes goes to work? but deerfoot is always packed in the morning and afternoon so I don't think that makes a diff lol

Clockwork

12-17-2013 07:42 PM

I've only ever gotten 800-880kms out of a tank when cruising at 100-110 kms/hr MAX from here to Montana. I've never gotten anything near that in the city or even airdrie to calgary highway driving.
I think the X5 4.4 and 3.0 is an OK vehicle on fuel consumption but I have noticed in the last 2 years my consumption dropping a bit too. I use seafoam every 4-10 tank fulls to clean it out.
use it in your oil for 150 kms before an oil change too. does wonders

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