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Unread 10-20-2013, 08:02 PM   #16
TurboDiesel
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2008 WK 
 
Join Date: Apr 2011
Location: langley, BC
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arent they like $500?

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2008 Jeep Grand Cherokee 3.0 CRD
2" RC lift
255/75R17 BFG KM1's
17" ion alloy rims
15" kicker solo baric L7 w/ Alpine m1000 amp
aftermarket headlights w/5000k HIDs
Red interior LEDs and Red license plate LED
Tinted tails
5% tint over the rear windows
more to come....
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Unread 10-20-2013, 08:19 PM   #17
BAH101
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Quote:
Originally Posted by TurboDiesel
arent they like $500?
I can't remember what I paid, but he is on this forum, just PM him and ask. They are really good brakes.
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2008 CRD QDII, OME HD, Pintlers wheels with 265/70/17 Goodyear Silent Armour's, Jeepinbyal UCA's. 4XGuard Front guard, Side Guard, belly guard, Matrix HC. GDE ECO Tune w/ delete.
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Unread 10-21-2013, 07:53 AM   #18
jaje
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PM him for details. I paid somewhere near $500 but it was well worth it as the braking performance is superior to stock rotors and pads. I can jam on the brakes if needed even when towing and never worry about fade or warping (before if towing I'd have to do a panic stop then I'd warp the rotors the first time). I have info on my upgrade and notes from Kolak in my blog post - scroll down to warped brakes.
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Unread 10-27-2013, 05:17 AM   #19
Surfer01
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2005 WK 
 
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We average 26mpg urban mileage. Towing a 1800kg caravan / trailer we get about 22mpg and if on a long run over 30mpg. This is imperial calculations.
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Unread 10-29-2013, 09:54 AM   #20
Hendrix9
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2007 WK 
 
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Quote:
Originally Posted by TurboDiesel
hey all

so lately my 2008 CRD has been gettin progressively bad mileage

my evic was always around 12.4-12.6L/100km [18.6MPG]
my last tank was 13.5L/100km on fuelly [17.4MPG]
and now my evic reads 14.8L/100km [roughly 16.5 MPG ??]

i have gde eco tune w/ dpf delete aswell... [for over a year]

i do 0 highway driving but still ...

i was told to look into o2 sensor, but any other possibilities?

thanks
When was the last time you changed your fuel filter?

Check the air filter too, but i'm assuming you already looked at that first. Turbos dont like restrictions.
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Unread 10-29-2013, 10:22 AM   #21
Radcrd
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My in Town / City mileage is similar to yours with same mods. Keep in mind the EVIC over estimates so you are actually getting better in reality. Depending on tire size I see from .5L to 1L/100km difference when hand calculating. Consistently .7L/100km with my summer tires. Stock size I was seeing 1L/100 difference.
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2000 Jetta TDI (hers)
2006 Liberty CRD (sold)
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Unread 10-29-2013, 07:26 PM   #22
TurboDiesel
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fuel filter was done in the summer
and air filter was done 2 months ago

yea im tracking what i get on a tank right now ... i used to see 550-600KMS / tank
so ill see what im at on this tank...i have moved closer to work so i go 2 weeks on a tank now which is nice but i hate how the evic says 15.3L/100km
it has NEVER been that high even before tune


wondering if i should just change o2 sensor and clean MAF sensor
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2008 Jeep Grand Cherokee 3.0 CRD
2" RC lift
255/75R17 BFG KM1's
17" ion alloy rims
15" kicker solo baric L7 w/ Alpine m1000 amp
aftermarket headlights w/5000k HIDs
Red interior LEDs and Red license plate LED
Tinted tails
5% tint over the rear windows
more to come....
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Unread 10-30-2013, 03:48 AM   #23
james_2k
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easy way to check is to take a long highway drive. top off fuel before and after, do at least 60 miles or so.

if you get 23mpg + you are probably fine.
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Unread 10-30-2013, 07:20 AM   #24
Radcrd
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I think your fine. Lately with winter blend I'm seeing 14L/100 city driving. Short distances at low speed are not economical in the CRD.
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2007 WK CRD QDII, GDE HOT tune. 275/55/18'' on Sahara's, SRT8 suspension.
2000 Jetta TDI (hers)
2006 Liberty CRD (sold)
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Unread 10-30-2013, 02:37 PM   #25
jediknight
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Any of you have used cetane boosters ? Dont know if its recommended or not.
These days Im having 10.8-11 L/100km and Im stock.
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Unread 10-30-2013, 02:44 PM   #26
GreenWK
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I had a bad rear wheel bearing that once replaced bumped my fuel economy up almost 2mpg
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Unread 10-30-2013, 02:59 PM   #27
Radcrd
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Quote:
Originally Posted by jediknight View Post
Any of you have used cetane boosters ? Dont know if its recommended or not.
These days Im having 10.8-11 L/100km and Im stock.
I use Powerservice when severely cold to prevent gelling. Don't think it does anything to improve mileage however.
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2007 WK CRD QDII, GDE HOT tune. 275/55/18'' on Sahara's, SRT8 suspension.
2000 Jetta TDI (hers)
2006 Liberty CRD (sold)
3 VW TDI's (sold)
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Unread 10-31-2013, 08:19 AM   #28
TurboDiesel
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i use diesel kleen it has cetane boost

but yea i drive 10 min to work and back and dont do lots of other driving...
i should be ready for a fill up come saturday ish and i have been tracking my KMS on this tank so we shall see what it is at come then lol
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[B]-]All Blacked Out[-[/B]
2008 Jeep Grand Cherokee 3.0 CRD
2" RC lift
255/75R17 BFG KM1's
17" ion alloy rims
15" kicker solo baric L7 w/ Alpine m1000 amp
aftermarket headlights w/5000k HIDs
Red interior LEDs and Red license plate LED
Tinted tails
5% tint over the rear windows
more to come....
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Unread 10-31-2013, 08:19 AM   #29
TurboDiesel
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2008 WK 
 
Join Date: Apr 2011
Location: langley, BC
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Quote:
Originally Posted by GreenWK View Post
I had a bad rear wheel bearing that once replaced bumped my fuel economy up almost 2mpg
how do u know if u have a bad wheel bearing?
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[B]-]All Blacked Out[-[/B]
2008 Jeep Grand Cherokee 3.0 CRD
2" RC lift
255/75R17 BFG KM1's
17" ion alloy rims
15" kicker solo baric L7 w/ Alpine m1000 amp
aftermarket headlights w/5000k HIDs
Red interior LEDs and Red license plate LED
Tinted tails
5% tint over the rear windows
more to come....
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Unread 11-01-2013, 04:10 PM   #30
jediknight
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2008 WK 
 
Join Date: Oct 2011
Location: Montreal, Qc
Posts: 456
Quote:
Originally Posted by TurboDiesel
how do u know if u have a bad wheel bearing?
Whining noise while driving or jack the car, take wheals solidly in your hand and check for play.
... Thats i would do :\
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