Oil Change Interval for High Mileage N54

BoostaVita · 10-06-2012, 09:37 PM

My 08 335xi is approaching 115k miles now. Have been doing oil change every 5000 miles. Just wondering if I should shorten the interval to every 3000 miles instead. By the way, I also would like to know if our turbos are mostly oil or water cooled (I know both water and oil cools them but which one is more critical). Thanks in advance.

sy2767 · 10-06-2012, 09:53 PM

Quote:

Originally Posted by Bossimo

My 08 335xi is approaching 115k miles now. Have been doing oil change every 5000 miles. Just wondering if I should shorten the interval to every 3000 miles instead. By the way, I also would like to know if our turbos are mostly oil or water cooled (I know both water and oil cools them but which one is more critical). Thanks in advance.

Oil is more critical for the turbos, 5000 mls is fine for the change interval IMO. Do some research to ease your mind on both topics.

cvc 22349a · 10-06-2012, 09:55 PM

If you're using BMW recommended oil, I'd extend the drain interval instead of shortening it. 7500 is a good change interval unless you're driving at the track or hit >260d oil temps regularly. 3k would be a waste of oil and money imo.

BoostaVita · 10-06-2012, 10:10 PM

I will stick to the 5K oil change interval. Thanks guys for the info.

E90Company · 10-06-2012, 10:11 PM

5k is fine.

marv85 · 10-06-2012, 11:07 PM

call me crazy,I change oil every 3000k, 4000k if I got busy hehe

creaminz · 10-06-2012, 11:49 PM

Same here between 3500-4500 for the past 3 1/2 years.

GTstunna612 · 10-07-2012, 01:31 AM

what brand oil and viscosity u using?

ScaredOnce · 10-07-2012, 04:11 AM

10k... Oils on the list..

MDORPHN · 10-07-2012, 06:43 AM

Why guess?

Send oil to Blackstone (or other similar lab) for analysis.

Neil

10-06-2012, 09:37 PM	#1
BoostaVita Private First Class 13 Rep 143 Posts Drives: 08 335xi Join Date: Jul 2011 Location: autobahn iTrader: (0)	Oil Change Interval for High Mileage N54 My 08 335xi is approaching 115k miles now. Have been doing oil change every 5000 miles. Just wondering if I should shorten the interval to every 3000 miles instead. By the way, I also would like to know if our turbos are mostly oil or water cooled (I know both water and oil cools them but which one is more critical). Thanks in advance.
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10-06-2012, 09:55 PM	#3
cvc 22349a Colonel 164 Rep 2,556 Posts Drives: 335i Join Date: Sep 2007 Location: SF Bay iTrader: (11)	If you're using BMW recommended oil, I'd extend the drain interval instead of shortening it. 7500 is a good change interval unless you're driving at the track or hit >260d oil temps regularly. 3k would be a waste of oil and money imo. __________________ 2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS
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10-06-2012, 10:10 PM	#4
BoostaVita Private First Class 13 Rep 143 Posts Drives: 08 335xi Join Date: Jul 2011 Location: autobahn iTrader: (0)	I will stick to the 5K oil change interval. Thanks guys for the info.
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10-06-2012, 10:11 PM	#5
E90Company Major General 194 Rep 6,136 Posts Drives: Car Join Date: Mar 2012 Location: FL iTrader: (2)	5k is fine.
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10-06-2012, 11:07 PM	#6
marv85 Colonel 70 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	call me crazy,I change oil every 3000k, 4000k if I got busy hehe __________________ '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT COBB, FBO, st2 LPFP, Mfactory LSD \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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10-06-2012, 11:49 PM	#7
creaminz Major General 545 Rep 7,705 Posts Drives: E90 LCI Join Date: Sep 2005 Location: So. Cal iTrader: (33)	Same here between 3500-4500 for the past 3 1/2 years.
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10-07-2012, 01:31 AM	#8
GTstunna612 Lieutenant 50 Rep 512 Posts Drives: BMW Join Date: Feb 2008 Location: Tampa, FL iTrader: (0) Garage List E90 335i [0.00]	what brand oil and viscosity u using? __________________ E90 335i Alpine White E90 328i Titanium Silver
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10-07-2012, 04:11 AM	#9
ScaredOnce Very Important 20 Rep 450 Posts Drives: 335xi (e92) Join Date: Sep 2010 Location: PIT iTrader: (0) Garage List 2008 BMW 335xi (e92) [9.00] 2008 Pontiac G8 GT [4.00] 2002 Pontiac Grand ... [0.00] 2001 Cadillac, Eldo ... [0.00]	10k... Oils on the list.. __________________ . FOR SALE: e92 335xi 6MT, Arctic Metallic, 2008. Check it out... .
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10-07-2012, 06:43 AM	#10
MDORPHN Colonel 291 Rep 2,898 Posts Drives: AW 1M Join Date: Oct 2010 Location: Wash, DC iTrader: (0)	Why guess? Send oil to Blackstone (or other similar lab) for analysis. Neil
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