E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Tire Lifetime Expectancy on XI cars



Reply
 
Thread Tools Search this Thread
      05-23-2019, 12:51 PM   #1
elons335i
Lieutenant
108
Rep
474
Posts

Drives: E61 6MT SG | Night Vision
Join Date: Mar 2014
Location: usa

iTrader: (0)

Tire Lifetime Expectancy on XI cars

I posted something to the 5series forums but it's mostly dead there..

Realizing that I am not comparing apples to apples, those of you with XI cars -- how many miles do your tires typically last?

backstory, I have a 2007 530Xit and my rear tires, especially inner walls are shot after ~12,000 miles:

I am running:

Front: 245/40/18
Rear: 275/35/18
Tires: Kuho Ecsta 4X II XL
__________________
...
Appreciate 0
      05-23-2019, 12:57 PM   #2
ewicky
Lieutenant
United_States
204
Rep
525
Posts

Drives: '07 335xi 4D AT
Join Date: Jan 2017
Location: Seattle, WA

iTrader: (0)

Provide some details dude.
When was your last alignment? (only laser, never have a manual alignment done)
How often do you check tire pressure?
How many bodies to you keep in the trunk?
Do you have any suspension mods?

Because of camber, inner shoulder would probably wear the fastest. But the xi rear end is the same as RWD rear end, and there isn't a systemic issue I've heard of excessive rear end tire wear. My tires last a disappointingly long time. I want them to wear out so I can buy new ones!

Last edited by ewicky; 05-23-2019 at 01:04 PM.. Reason: grammer
Appreciate 0
      05-23-2019, 01:05 PM   #3
elons335i
Lieutenant
108
Rep
474
Posts

Drives: E61 6MT SG | Night Vision
Join Date: Mar 2014
Location: usa

iTrader: (0)

answered below.

Quote:
Originally Posted by ewicky View Post
Provide some details dude.
When was your last alignment? (only laser, never have a manual alignment done)
-- Yes. Laser at the time of install when new.
How often do you check tire pressure?
--Weekly, set to 35psi
How many bodies to you keep in the trunk?
--errrr...are you asking for a friend?
Do you have any suspension mods?
--OE.

Because of camber, inner shoulder would probably wear the fastest. But the xi rear end is the same as RWD rear end, and there isn't a systemic issue I've heard of excessive rear end tire wear. My tires last a disappointing long time. I want them to wear out so I can buy new ones!
__________________
...
Appreciate 0
      05-23-2019, 01:18 PM   #4
ctuna
Lieutenant General
1904
Rep
13,081
Posts

Drives: 325xi 06 wagon MT
Join Date: Jan 2010
Location: Santa Cruz, Ca

iTrader: (0)

Performance tires don't last that long .
If you are using runflats even less.
I could barely get 30k off the performance tires
on my e46 and those were real tires not rft's.
And the wearing on the inside rears is typical BMW
wear pattern with negative camber in the back.
Appreciate 0
      05-23-2019, 01:24 PM   #5
elons335i
Lieutenant
108
Rep
474
Posts

Drives: E61 6MT SG | Night Vision
Join Date: Mar 2014
Location: usa

iTrader: (0)

Quote:
Originally Posted by ctuna View Post
Performance tires don't last that long .
If you are using runflats even less.
I could barely get 30k off the performance tires
on my e46 and those were real tires not rft's.
And the wearing on the inside rears is typical BMW
wear pattern with negative camber in the back.
So i think factory spec is something absurd like 2 degrees of negative camber -- can can it be adjusted to 1 or maybe 0.5 degree of negative camber?
__________________
...

Last edited by elons335i; 05-23-2019 at 01:58 PM..
Appreciate 0
      05-23-2019, 03:00 PM   #6
ewicky
Lieutenant
United_States
204
Rep
525
Posts

Drives: '07 335xi 4D AT
Join Date: Jan 2017
Location: Seattle, WA

iTrader: (0)

12kmi is too short of life. Something is wrong.
That tire is barely "performance". And it has a treadwear rating of 420.

Honestly the camber shouldn't be so bad that you wear the insides like that. It's just enough that you wouldn't see the outsides wear in the back, unless all you did was cornering. Front outsides wearing is usually normal.

I couldn't tell you what's wrong though. Maybe get the alignment checked by someone else? Maybe you have play in some rear bushings that drops the alignment out of spec as soon as you start driving? IDK

But to answer your original question, no that is not normal for a regular tire like that.

Last edited by ewicky; 05-23-2019 at 04:42 PM.. Reason: spelling mistake
Appreciate 0
      05-23-2019, 03:26 PM   #7
nsjames
Brigadier General
2439
Rep
4,333
Posts

Drives: 08 328xi Touring
Join Date: May 2017
Location: ohio

iTrader: (0)

miles?

odds are high it needs bushings. the toe changes, and toe + camber annihilates tires.
Appreciate 0
      05-23-2019, 03:50 PM   #8
ctuna
Lieutenant General
1904
Rep
13,081
Posts

Drives: 325xi 06 wagon MT
Join Date: Jan 2010
Location: Santa Cruz, Ca

iTrader: (0)

If you are doing burnouts and racing they aren't going
to last to long .
Appreciate 0
      05-23-2019, 04:08 PM   #9
elons335i
Lieutenant
108
Rep
474
Posts

Drives: E61 6MT SG | Night Vision
Join Date: Mar 2014
Location: usa

iTrader: (0)

There’s no racing, burnouts what so ever. It’s a massive AWD wagon with only 255hp. I had the car in the shop and rear suspension was inspected and eccentric bolts were replaced - everything else was tight, no replacement recommended.

Before the bushing hysteria, does anyone know if these cars can go down to 1 degree of negative camber?
Appreciate 0
      05-23-2019, 05:05 PM   #10
nsjames
Brigadier General
2439
Rep
4,333
Posts

Drives: 08 328xi Touring
Join Date: May 2017
Location: ohio

iTrader: (0)

it is possible to square up the tire. It does help with tire wear.
Appreciate 0
      05-23-2019, 05:16 PM   #11
ctuna
Lieutenant General
1904
Rep
13,081
Posts

Drives: 325xi 06 wagon MT
Join Date: Jan 2010
Location: Santa Cruz, Ca

iTrader: (0)

I have the wagon with awd tires wear seems pretty much like
all other cars . The wheels are 17's and not low profile . Since they
are square I rotate them about every 10k.
Conti DWS. Its a nice all around tire.

Had the E46 staggered coupe sport setup got tired of buying 1k worth
of tires every 35k and down to nothing on the back at that mileage.
Yeah they really hold and are blast for the first 25k.
Appreciate 0
      05-23-2019, 05:29 PM   #12
elons335i
Lieutenant
108
Rep
474
Posts

Drives: E61 6MT SG | Night Vision
Join Date: Mar 2014
Location: usa

iTrader: (0)

The current set up I have is fairly square.

I just measured my tires.

F: 8-9/32 (uniform wear)
R: 4/32 (standard sloped wear with more wear on the inside).

I’m suspecting an alignment issue.

Anyone have alignment specs for their cars with good wear?

Last edited by elons335i; 05-23-2019 at 05:50 PM..
Appreciate 0
      05-24-2019, 09:00 AM   #13
hassmaschine
Major General
United_States
3940
Rep
7,216
Posts

Drives: "NBO" 330i
Join Date: Jun 2014
Location: earth

iTrader: (0)

Didn't have any problems with our E91 xi.

sounds like you have a toe problem in the rear. although 12k miles could be a lot or nothing depending on what tire it is. The only tire I've had wear out that fast had a TW of 160, and that car had an aggressive alignment.
Appreciate 0
      05-24-2019, 09:38 AM   #14
teflon_jones
Enlisted Member
11
Rep
33
Posts

Drives: 08 335Xi 6 speed
Join Date: Sep 2017
Location: Boston

iTrader: (0)

I got sick of the inner edge of my rear tires wearing out very quickly (<10k miles!), so when I installed my H&R coilover kit, I went with alignment settings to maximize tire life since the car spends about 95% of its time on long highway trips. Now my tires wear perfectly evenly all the way across both front and rear. Note: I had to buy aftermarket camber and toe arms for the rear because the stock ones won't work with the lower ride height.

My REAR alignment settings are:
0.5 degrees negative camber - If you want to check yourself, or especially if you're ever going to do your own suspension work, buy a digital angle gauge. You can compress each rear corner by using a jack under the brake disc, then use the gauge to get the camber down to the tenth of a degree. Do it with the wheel off so you can stick the gauge to the brake disc hat (NOT the rotor braking surface).
3/32" toe in - That's only 3/64" on each side, but that's enough to give the car perfectly neutral handling.

My FRONT alignment settings are:
0.2-0.3 degrees negative camber
1/32" toe out - This means only 1/64" per side.

It took me a while to align the car, with many setups that didn't work, especially on snow (I did it this past winter). Now, the car is set up perfectly for being a highway cruiser that can still handle great in the twisties due to the awesome H&R coilovers.
Appreciate 0
      05-24-2019, 03:44 PM   #15
elons335i
Lieutenant
108
Rep
474
Posts

Drives: E61 6MT SG | Night Vision
Join Date: Mar 2014
Location: usa

iTrader: (0)

Quote:
Originally Posted by teflon_jones View Post
I got sick of the inner edge of my rear tires wearing out very quickly (<10k miles!), so when I installed my H&R coilover kit, I went with alignment settings to maximize tire life since the car spends about 95% of its time on long highway trips. Now my tires wear perfectly evenly all the way across both front and rear. Note: I had to buy aftermarket camber and toe arms for the rear because the stock ones won't work with the lower ride height.

My REAR alignment settings are:
0.5 degrees negative camber - If you want to check yourself, or especially if you're ever going to do your own suspension work, buy a digital angle gauge. You can compress each rear corner by using a jack under the brake disc, then use the gauge to get the camber down to the tenth of a degree. Do it with the wheel off so you can stick the gauge to the brake disc hat (NOT the rotor braking surface).
3/32" toe in - That's only 3/64" on each side, but that's enough to give the car perfectly neutral handling.

My FRONT alignment settings are:
0.2-0.3 degrees negative camber
1/32" toe out - This means only 1/64" per side.

It took me a while to align the car, with many setups that didn't work, especially on snow (I did it this past winter). Now, the car is set up perfectly for being a highway cruiser that can still handle great in the twisties due to the awesome H&R coilovers.

Interesting. Do you know if stock suspension can be adjusted down to 0.5 degree? That would be my ideal situation. My front tires are like new, in the rear it looks I’m running a [mad]stance[yo]. It needs to be corrected from the stupidity of the OE setting.
Appreciate 0
      05-24-2019, 06:14 PM   #16
elons335i
Lieutenant
108
Rep
474
Posts

Drives: E61 6MT SG | Night Vision
Join Date: Mar 2014
Location: usa

iTrader: (0)

For anyone interested... I found the answer:

https://www.google.com/amp/s/www.m5b...d.html%3famp=1
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:43 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST