Anyone know what this is??

abeardo83 · 04-11-2016, 01:09 PM

Just driven home from work and was messing under the bonnet once I got home. Probably shouldn't have done it, but opened the oil cap pretty much as soon as I opened the bonnet (don't know why I did).

Got a shock when I saw this - is it because I've only done a short trip (11 miles). Car didn't even get to full temp.

Scared now!!!!

IanS100 · 04-11-2016, 02:37 PM

Too many short trips by the look of it

Shorty1608 · 04-11-2016, 02:44 PM

Quote:

Originally Posted by IanS100

Too many short trips by the look of it

+1 ^^

is it used as a town car mainly ?

abeardo83 · 04-11-2016, 02:57 PM

Quote:

Originally Posted by Shorty1608

+1 ^^

is it used as a town car mainly ?

Yeah. Typically do 11miles to work, and then 11miles back in the evening.

Only do more maybe 1-2 a month.

Shorty1608 · 04-11-2016, 03:06 PM

Quote:

Originally Posted by abeardo83

Yeah. Typically do 11miles to work, and then 11miles back in the evening.

Only do more maybe 1-2 a month.

Yes could be that then, weirdly enough at the minute I'm only doing 9 miles to work and haven't seen this happening yet but I do use the motorway every couple of weeks, probably worth a little stretch down an a road or the motorway and get it upto temp every weekend to stop it

Phil325i · 04-11-2016, 05:21 PM

That looks like a bit more than mayo. How often are you changing your oil and filter? If you're on CBS intervals it could be indicative of sludge in the valve train...

http://blog.bavauto.com/8476/bmw-and...nge-intervals/

AWSAWS · 04-11-2016, 05:46 PM

I'd change oil and filters more often.

RajB · 04-12-2016, 01:12 AM

It's nothing to majorly worry about as Tin noticed the same with his 135i after only a short trip the one day. It is because the cars not getting up to temp. You need to get the car out once a week at least for a good run to get the temps up and properly get the oil moving.

abeardo83 · 04-12-2016, 01:14 AM

I've only owned it since October. It'll be getting an oil change soon though (I intend every 6k miles). It's previous owner did everything through BMW so I reckon it's probably been kept to CBS.

abeardo83 · 04-12-2016, 03:02 AM

Quote:

Originally Posted by Phil325i

That looks like a bit more than mayo. How often are you changing your oil and filter? If you're on CBS intervals it could be indicative of sludge in the valve train...

http://blog.bavauto.com/8476/bmw-and...nge-intervals/

Jesus Christ that's one clogged up engine!!! That must be from not using high mileage engine oil, surely?!

Any recommendations as to which engine oil is best to go for, going forward? If I do have bits of sludge in there I want to break them down gradually, rather than have big bits break off and the car have the engine equivalent of a heart attack!

Phil325i · 04-12-2016, 05:10 AM

If you think you do have sludge, it's probably best to consult a good indy about the possibility of an engine flush. I'm not a big fan of flushing myself, but if it's bad, it might be worth it. As for oil going forward, any good quality fully synthetic with BMW LL04 approval will be fine.

Aragorn30d · 04-12-2016, 05:55 AM

Make sure the thermostat is working and the engines actually reaching operating temperature.

11miles is long enough that it should be fully warmed up by then.

Just reduce your oil change interval and continue using your normal oil.

I change my oil every 5k. Force of habit, i like clean engines. A petrol engine should be able to do most of that 5k interval without making the oil black. If its dirty inside it will go black pretty quickly, so just change it again. After 5k the oil should still be brown.

abeardo83 · 04-13-2016, 02:30 AM

Gave the car a longer run on the way home from work last night, also used the paddles to try and keep the revs up. Got home, checked cap and no yellowyness - so i'm assuming that it's as RajB said and just because it was a short run.

djgandy · 04-19-2016, 04:48 AM

Quote:

Originally Posted by abeardo83

Gave the car a longer run on the way home from work last night, also used the paddles to try and keep the revs up. Got home, checked cap and no yellowyness - so i'm assuming that it's as RajB said and just because it was a short run.

Yeah give it some revs once warm. These things were built to give it some! If you've got some nice straight roads nearby take a longer route home every now and again and have a flirt with the red line!

abeardo83 · 04-20-2016, 02:19 AM

Quote:

Originally Posted by djgandy

Yeah give it some revs once warm. These things were built to give it some! If you've got some nice straight roads nearby take a longer route home every now and again and have a flirt with the red line!

Changed the oil at the weekend for some new 0w-30 Castrol. Seems to run free-er now (not sure if it's a placebo or not... probably).

Have started to take your advice and give it a kickign on the way home - great fun for me, not so much for the wallet!!

04-11-2016, 01:09 PM	#1
abeardo83 Captain 96 Rep 828 Posts Drives: E92 M3 Join Date: Nov 2015 Location: Cheshire iTrader: (2) Garage List 2008 BMW M3 [0.00]	Anyone know what this is?? Just driven home from work and was messing under the bonnet once I got home. Probably shouldn't have done it, but opened the oil cap pretty much as soon as I opened the bonnet (don't know why I did). Got a shock when I saw this - is it because I've only done a short trip (11 miles). Car didn't even get to full temp. Scared now!!!!
	Appreciate 0 Tweet Quote

04-11-2016, 02:37 PM	#2
IanS100 Major General 136 Rep 5,050 Posts Drives: 520d F10 LCI M Sport Join Date: Nov 2011 Location: Southport UK iTrader: (0)	Too many short trips by the look of it
	Appreciate 0 Quote

04-11-2016, 05:21 PM	#6
Phil325i Brigadier General 616 Rep 3,194 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	That looks like a bit more than mayo. How often are you changing your oil and filter? If you're on CBS intervals it could be indicative of sludge in the valve train... http://blog.bavauto.com/8476/bmw-and...nge-intervals/ __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
	Appreciate 0 Quote

04-11-2016, 05:46 PM	#7
AWSAWS Colonel 283 Rep 2,343 Posts Drives: E92 GC Turbos, FBO, 335i DCT Join Date: Nov 2012 Location: Valhalla iTrader: (0)	I'd change oil and filters more often. __________________ GC Turbos, FBO, JB4, DCT, Port Meth injection, BMS Charge Pipe, NGK plugs. EBC brakes and pads, LED Angel lights, LED foglights, LCI rears OCC, Braided brake lines. Custom Diff Lockdown Kit, VTT inlets, TMAP, stage 2+ fuel pump 11.79@119mph (stock turbos) 11.74@129mph (GC Turbos)
	Appreciate 0 Quote

04-12-2016, 01:12 AM	#8
RajB Brigadier General 448 Rep 3,312 Posts Drives: E92 335i Join Date: Nov 2014 Location: Midlands iTrader: (4)	It's nothing to majorly worry about as Tin noticed the same with his 135i after only a short trip the one day. It is because the cars not getting up to temp. You need to get the car out once a week at least for a good run to get the temps up and properly get the oil moving. __________________ E92 335i / M3 Hybrid - The Build
	Appreciate 0 Quote

04-12-2016, 01:14 AM	#9
abeardo83 Captain 96 Rep 828 Posts Drives: E92 M3 Join Date: Nov 2015 Location: Cheshire iTrader: (2) Garage List 2008 BMW M3 [0.00]	I've only owned it since October. It'll be getting an oil change soon though (I intend every 6k miles). It's previous owner did everything through BMW so I reckon it's probably been kept to CBS.
	Appreciate 0 Quote

04-12-2016, 05:10 AM	#11
Phil325i Brigadier General 616 Rep 3,194 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	If you think you do have sludge, it's probably best to consult a good indy about the possibility of an engine flush. I'm not a big fan of flushing myself, but if it's bad, it might be worth it. As for oil going forward, any good quality fully synthetic with BMW LL04 approval will be fine. __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
	Appreciate 0 Quote

04-12-2016, 05:55 AM	#12
Aragorn30d Lieutenant Colonel 175 Rep 1,596 Posts Drives: E90 330d Join Date: Mar 2015 Location: Fife iTrader: (0)	Make sure the thermostat is working and the engines actually reaching operating temperature. 11miles is long enough that it should be fully warmed up by then. Just reduce your oil change interval and continue using your normal oil. I change my oil every 5k. Force of habit, i like clean engines. A petrol engine should be able to do most of that 5k interval without making the oil black. If its dirty inside it will go black pretty quickly, so just change it again. After 5k the oil should still be brown.
	Appreciate 0 Quote

04-13-2016, 02:30 AM	#13
abeardo83 Captain 96 Rep 828 Posts Drives: E92 M3 Join Date: Nov 2015 Location: Cheshire iTrader: (2) Garage List 2008 BMW M3 [0.00]	Gave the car a longer run on the way home from work last night, also used the paddles to try and keep the revs up. Got home, checked cap and no yellowyness - so i'm assuming that it's as RajB said and just because it was a short run.
	Appreciate 0 Quote