Oil Change After Injectors?

jwebb335xi · 05-08-2016, 12:59 PM

Hey guys,

I did injectors last weekend and plugs Thursday evening. Car runs great. There's only about 500 miles on my current oil change, but given one injector was stuck wide open last weekend and the car was smoking up the neighborhood when I limped home, i'm wondering if I should change my oil and filter??

I have no idea if there's fuel mixing with the oil after injector failure.... but if there is, seems to me an oil change makes sense.. Thoughts welcome!!

Also, is there any demonstrable truth to the argument that Motul oil will help to lower engine temps on an N54? I'm not having problems and I'm not tracking this car, but it's tuned and I push it a bit in the summer. Although I'm near Chicago, we routinely see 90+ in July and August...

Antetokounmpo · 05-08-2016, 01:19 PM

Definitely not a bad idea since oil is cheap. A little fuel in the oil isn't a huge deal, but we don't know how much is in there.

I changed mine just to be safe after changing 3 injectors that were leaking.

Dann · 05-08-2016, 04:36 PM

I only had 600miles on my oil when my injectors went.
For the sake of the £50 it cost for a change I had it done.

You will be kicking yourself if you destroy a bearing from contaminated oil for the sake of such little money

007_e350 · 05-08-2016, 07:12 PM

with 500 miles oil is pretty fresh don't think it's needed, just change after 2500 miles if you're really concerned

808AWD325xi · 05-08-2016, 07:15 PM

Quote:

Originally Posted by Heel Toe

Definitely not a bad idea since oil is cheap. A little fuel in the oil isn't a huge deal, but we don't know how much is in there.

I changed mine just to be safe after changing 3 injectors that were leaking.

+1

I changed mine after replacing 1 leaking injector.

jwebb335xi · 05-08-2016, 08:46 PM

Quote:

Originally Posted by 808AWD325xi

Quote:

Originally Posted by Heel Toe

Definitely not a bad idea since oil is cheap. A little fuel in the oil isn't a huge deal, but we don't know how much is in there.

I changed mine just to be safe after changing 3 injectors that were leaking.

+1

I changed mine after replacing 1 leaking injector.

Thanks guys. I figured this was the case.. I can do it myself for about$70 or at an Indy for $65... Scheduling appointment!!!!!!

DR-JEKL · 05-08-2016, 08:53 PM

For the sake of $50 or so of oil just change it (dont worry about the filter)

Jklad · 05-09-2016, 09:14 AM

Yes motul will slightly lower oil temp vs the old Bmw oil

05-08-2016, 12:59 PM	#1
jwebb335xi Major 205 Rep 1,070 Posts Drives: 2008 335 XI Join Date: Jun 2014 Location: Chicago Burbs iTrader: (0)	Hey guys, I did injectors last weekend and plugs Thursday evening. Car runs great. There's only about 500 miles on my current oil change, but given one injector was stuck wide open last weekend and the car was smoking up the neighborhood when I limped home, i'm wondering if I should change my oil and filter?? I have no idea if there's fuel mixing with the oil after injector failure.... but if there is, seems to me an oil change makes sense.. Thoughts welcome!! Also, is there any demonstrable truth to the argument that Motul oil will help to lower engine temps on an N54? I'm not having problems and I'm not tracking this car, but it's tuned and I push it a bit in the summer. Although I'm near Chicago, we routinely see 90+ in July and August... __________________ JWebb335xi MHD / Wedge / 93 Octane/ xHP / FMIC / Inlets / Catted DPs / CP / DVs
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05-08-2016, 01:19 PM	#2
Antetokounmpo Brigadier General 1560 Rep 3,475 Posts Drives: E90 6MT FBO; '18 F150 Platinum Join Date: Jul 2013 Location: WI iTrader: (3) Garage List 2018 Ford F-150 Pla ... [0.00] 2008 BMW 335xi [0.00]	Definitely not a bad idea since oil is cheap. A little fuel in the oil isn't a huge deal, but we don't know how much is in there. I changed mine just to be safe after changing 3 injectors that were leaking. __________________ 2008 335xi 6MT \| VRSF Catless DP \| VRSF 7" FMIC \| VRSF CP \| TIAL BOV \| DCI \| MHD 2+ BC Racing BR \| Stoptech 600 \| Firehawk Indy 500 255 Square \| Atric Altimax 225 Sq. 2018 F-150 Platinum 701A \| FX4 \| 3.5 EcoBeast
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05-08-2016, 04:36 PM	#3
Dann Major 131 Rep 1,374 Posts Drives: E90 LCi 335i Join Date: Feb 2015 Location: Portsmouth, United Kingdom iTrader: (0)	I only had 600miles on my oil when my injectors went. For the sake of the £50 it cost for a change I had it done. You will be kicking yourself if you destroy a bearing from contaminated oil for the sake of such little money
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05-08-2016, 07:12 PM	#4
007_e350 Lieutenant Colonel 226 Rep 1,909 Posts Drives: 335i 2008 MHD'd / x5d E70 Join Date: May 2013 Location: left lane iTrader: (3)	with 500 miles oil is pretty fresh don't think it's needed, just change after 2500 miles if you're really concerned
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05-08-2016, 08:53 PM	#7
DR-JEKL Major General 909 Rep 6,285 Posts Drives: Space Grey E92 335i 6MT Join Date: Jul 2012 Location: Newcastle Ozstraylia iTrader: (3)	For the sake of $50 or so of oil just change it (dont worry about the filter)
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05-09-2016, 09:14 AM	#8
Jklad Lieutenant Colonel 422 Rep 1,643 Posts Drives: 2007 335i Coupe Join Date: Nov 2010 Location: Palatine, IL iTrader: (0)	Yes motul will slightly lower oil temp vs the old Bmw oil __________________ 2007 E92 335i MT
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