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wheel offsets #4724869
04/12/18 02:50 PM
04/12/18 02:50 PM
Joined: Nov 2006
Posts: 219
Illinois
tigrpal Offline OP
tigrpal  Offline OP
Joined: Nov 2006
Posts: 219
Illinois
My OE wheels are 15 X 6 et46. I am looking at a new set of wheels for winter tires but the closest sizes I can get are 15 x 6 et38 or 15 x 6.5 et40. I know the wheel manufacturers say these wheels will fit but what affect will the difference offsets have? From www.wheel-size.com it shows that the scrub radius goes from zero to positive. Will the different scrub radius cause the tires to wear differently? Will it affect the suspension or steering at all? Could it affect mpg? Or Is it such a little difference it won't really change anything?

Any help is appreciated.

Re: wheel offsets [Re: tigrpal] #4724903
04/12/18 03:37 PM
04/12/18 03:37 PM
Joined: Jan 2011
Posts: 670
Anaheim, CA
zorobabel Offline
zorobabel  Offline
Joined: Jan 2011
Posts: 670
Anaheim, CA
It could affect wheel bearing life.


1997 Maxima 195k, Castrol GTX Synblend 5W-30, FL400S
2004 Corolla 196k, VWB 5w20 + SSS 10w40, MGL4967
Re: wheel offsets [Re: tigrpal] #4724910
04/12/18 03:49 PM
04/12/18 03:49 PM
Joined: Dec 2008
Posts: 3,139
Occupied Virginia
Bottom_Feeder Offline
Bottom_Feeder  Offline
Joined: Dec 2008
Posts: 3,139
Occupied Virginia
For what car? Getting some OE take-offs from Craigslist is always a possibility.

Re: wheel offsets [Re: tigrpal] #4724913
04/12/18 03:50 PM
04/12/18 03:50 PM
Joined: Nov 2011
Posts: 5,020
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 5,020
MTL, CANADA
Very minimal difference between 38 & 40. I doubt you would notice a difference.


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: wheel offsets [Re: tigrpal] #4724952
04/12/18 04:45 PM
04/12/18 04:45 PM
Joined: Sep 2008
Posts: 9,236
Ontario, Canada
IndyIan Offline
IndyIan  Offline
Joined: Sep 2008
Posts: 9,236
Ontario, Canada
My winters on the Focus are off by a similar amount, with less positive offset and it is noticeable. Torque steer is amplified a bit in 1st and 2nd gear, and I read it actually softens the effective spring rate significantly which I think I can feel as well. Hwy stability is still excellent though, and tires don't care about offset either for wear. Haven't had any wheel bearing problems yet and don't really expect to, but I also autocross which isn't easy on bearings either.
Also my tires are just set out enough to throw more dirt on the side of the car, but the car does look a bit more planted as the tires are a half inch farther apart.
Get the ET40 though, you might as well minimize the difference.


07 Focus ZXW, 5spd manual, 218km M1 5W30
18 Outback 2.5 CVT 15km 0W20
Re: wheel offsets [Re: tigrpal] #4725015
04/12/18 06:05 PM
04/12/18 06:05 PM
Joined: Jun 2013
Posts: 1,146
iowa
Traction Offline
Traction  Offline
Joined: Jun 2013
Posts: 1,146
iowa
Not that I would recommend it on a modern car, but my 1981 Camaro street legal stock car drives great with 15 x 10 inch wheels with a minus 2 inch offset, with a 4 inch wider track drives great.


Certified Tire Service Instructor since 2009
50 Chevy Fire Truck
13 Tahoe Pursuit
97 C5 Corvette
00 BMW M Roadster
02 Camry
12 Camry
81 Camaro
55 Chevy C4
Re: wheel offsets [Re: Traction] #4725079
04/12/18 07:04 PM
04/12/18 07:04 PM
Joined: Nov 2006
Posts: 219
Illinois
tigrpal Offline OP
tigrpal  Offline OP
Joined: Nov 2006
Posts: 219
Illinois
Originally Posted By: Traction
Not that I would recommend it on a modern car, but my 1981 Camaro street legal stock car drives great with 15 x 10 inch wheels with a minus 2 inch offset, with a 4 inch wider track drives great.



That's cool. I like the look of the wider sidewalls. I'm sure the ride is excellent. I won't do that on my FWD hybrid though. I'm just trying to fit wheels without messing anything up. I always get good advice here on BITOG and I appreciate it.


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