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Old 01-17-2020, 04:11 PM
Tdavis1094 Tdavis1094 is offline
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Valve cover gunk

The shop pulled valve cover today and we found this they say that it was from the car running idle for too long is this possible? They are replacing valve cover spark plugs coil packs oil and also filters and fixing the fans.
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Old 01-17-2020, 04:12 PM
Tdavis1094 Tdavis1094 is offline
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Old 01-17-2020, 06:56 PM
BabyUnicornTaco BabyUnicornTaco is offline
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Do you only drive short distances? If so that may explain what you see.


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Old 01-18-2020, 10:25 AM
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CALWATERBOY TRE CALWATERBOY TRE is offline
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Originally Posted by Tdavis1094 View Post
The shop pulled valve cover today and we found this they say that it was from the car running idle for too long is this possible? They are replacing valve cover spark plugs coil packs oil and also filters and fixing the fans.

Interesting. Ask them to detail exactly what happens when the engine 'idles too long.' Post!

Exactly what is the idle time limit?
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Old 01-18-2020, 10:33 AM
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No doubt you need to drive that car longer and harder. The gunk you see is from condensation being absorbed by the oil. Condensation forms each time the car is driven for a short distance in cold weather. By driving the car for longer trips, getting it totally warm, the condensation will evaporate. My guess is that we regularly need to drive these cars for 30+ minutes in one trip.
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Old 01-18-2020, 10:47 AM
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No doubt you need to drive that car longer and harder. The gunk you see is from condensation being absorbed by the oil. Condensation forms each time the car is driven for a short distance in cold weather. By driving the car for longer trips, getting it totally warm, the condensation will evaporate. My guess is that we regularly need to drive these cars for 30+ minutes in one trip.

Believe BMW specs 10 min, and that works in Orange County. But not in Whitehorse. Yukoner?
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Old 01-18-2020, 07:15 PM
Tdavis1094 Tdavis1094 is offline
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Thanks for the input I drive the car a lot I live in Alaska and frequent commutes everyday besides weekend at lest 50 miles. the temps rightnow are usually 7 degrees to 25F. The cars runs better than ever they installed bremi coil packs, new spark plugs, new valve cover, new battery and also coolant using pentozin E, driven dt-40 oil Used and replaced cabin air filter. it has 100,325 miles currently running an injen intake We replaced the valve cover at around 67,000 miles and they said that's the reason the car was acting up I figured the valve cover failed prematurely but that wasn't the case. I'm going to drive the car harder and I'll be more than happy to because this thing is a blast rightnow. Bmw for life.
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Old 01-18-2020, 07:16 PM
Tdavis1094 Tdavis1094 is offline
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I forgot to add the symptoms I was having is not being able to accelerate low power service engine light and very frequent misfires that were very bad at idle. Almost made me want the sell the car
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Old 01-19-2020, 07:31 AM
edycol edycol is offline
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What oil was used in the vehicle and what was OCI?


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Old 01-19-2020, 11:44 AM
Yukoner Yukoner is offline
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Quote:
Originally Posted by CALWATERBOY TRE View Post
Believe BMW specs 10 min, and that works in Orange County. But not in Whitehorse. Yukoner?
This yellow foamy crap happened to me in a Ford Mustang once. Looks horrible. I can confirm that 10min driving does NOT burn the condensation off in real winter weather. The X1 gets it too. I'm sure the E90s also suffer from it, but I don't drive them that much in the deep cold, so I don't know for sure.

In these temps, it would likely take a 1 to 2 hour non-stop trip to heat the engines up enough to get rid of the condensation.

FWIW, I have been told by many, many dealers, independent mechanics, etc, that the yellow foamy crap is nothing to be concerned about and it won't hurt anything.
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Not even sure if -40 degrees is cold anymore ?
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Old 01-19-2020, 08:54 PM
Tdavis1094 Tdavis1094 is offline
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The oil I've been using is Driven DT-40 it's the only oil they use is driven brand at the shop
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Old 01-20-2020, 07:46 AM
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The oil I've been using is Driven DT-40 it's the only oil they use is driven brand at the shop
Not sure what "DT-40" oil is. The oil absolutely, positively must be LL-01 compliant.
Where are you located?
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Old 01-20-2020, 08:06 AM
edycol edycol is offline
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Valve cover gunk

Quote:
Originally Posted by Tdavis1094 View Post
The oil I've been using is Driven DT-40 it's the only oil they use is driven brand at the shop


That oil is not approved by BMW. BMW LL specifications are most stringent when it comes to oxidation.
I would not put that in my BMW if someone paid it to me.
Use LL01 oil or oil that has MB229.5 approval.
Usual suspects:
Castrol 0W40
Mobil1 0W40
Both available in Wal Mart have MB229.5 approval and Porsche A40.
Advanced Auto Parts has right now sale on synthetics. I got yesterday for my 328i 10qt of Pennzoil Platinum Euro that has both LL01 and MB229.5 approvals. Sale is: 5qt of oil with filter for $33. Got filter for my minivan though.
Also, new Valvoline 5W40 European Vehicle has LL01, MB229.5, Porsche A40 approvals and are available in Wal Mart.
Whatever you do, use oils that have approvals not that are “recommended for.”
I would bet your culprit is oil!


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Last edited by edycol; 01-20-2020 at 08:08 AM.
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Old 01-20-2020, 11:58 AM
Tdavis1094 Tdavis1094 is offline
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a family friend owns the car shop that I go to I don't think he would recommend crappy oil that didn't belong he also rebuilds old Porsche's for a living. If he did recommend junk he would go out of business and his reputation wouldn't be flawless like it is now. I did some research and it's quite the opposite.
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Old 01-20-2020, 11:59 AM
Tdavis1094 Tdavis1094 is offline
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And the oil is specifically 5w-40 brand is driven DT-40 my apologies
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Old 01-20-2020, 12:02 PM
Tdavis1094 Tdavis1094 is offline
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Oil
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Old 01-20-2020, 01:25 PM
bimmer328xi bimmer328xi is offline
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Yeah, I would check the oil. The driving you do should be plenty.
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Old 01-20-2020, 05:19 PM
edycol edycol is offline
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Oil


My money is on oil!


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Old 01-20-2020, 05:54 PM
Tdavis1094 Tdavis1094 is offline
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He explained that if the vehicle idles say for 20-30 mins it's bad for the air oil seperator and can cause this gunk from water evaporation in cold temps and it causes it to freeze. I've also washed the engine a few times before covering important parts. not sure if there was a slight leak and water could have gone into the engine and trapped moisture but I've done oil changes throughout and the oil looked fine. I've done some reading and found similar instances on a lot of bmws I've let the car idle a few times for 20 to 30 mins. This year it was horrible -15 -25 in the winter. The oil could be a possibility as I am taking everyone's input into consideration I've used liquimoly 5w-40 and I burned through that super fast for some reason compared to the Driven 5-w40 in the summertime.
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Old 01-20-2020, 05:56 PM
Tdavis1094 Tdavis1094 is offline
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I also recently got a oil change with the valve cover install. Same oil Driven 5w40
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Old 01-20-2020, 07:13 PM
edycol edycol is offline
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Quote:
Originally Posted by Tdavis1094 View Post
He explained that if the vehicle idles say for 20-30 mins it's bad for the air oil seperator and can cause this gunk from water evaporation in cold temps and it causes it to freeze. I've also washed the engine a few times before covering important parts. not sure if there was a slight leak and water could have gone into the engine and trapped moisture but I've done oil changes throughout and the oil looked fine. I've done some reading and found similar instances on a lot of bmws I've let the car idle a few times for 20 to 30 mins. This year it was horrible -15 -25 in the winter. The oil could be a possibility as I am taking everyone's input into consideration I've used liquimoly 5w-40 and I burned through that super fast for some reason compared to the Driven 5-w40 in the summertime.
OK, there is a lot of nonsense here.
First of all, -15 -20 is nothing for these engines. These engines were used across Europe in police vehicle BMW's. They are idling, running 120mph+ etc. His explanation is ridiculous at best.
How much water is there? It is very easy to determine. Send sample to Blackstone and you will get % of water, shear of oil, remaining additives (TBN), and if you pay addition $10 you can get TAN (acidity of oil).
Now, I worked on development, testing and approval process of oils. I can tell you one thing, when manufacturer aims at certain customers (in this case of European vehicles) and does not send oil for an approval, that means they are hiding some big stuff. Approval process is really cheap (approx. $4,000-5,000) and nothing stops Joe Gibbs to send his oils for approval to BMW, Mercedes etc. If you ask them why they don't, 99% of time answer is that it is too expensive, big corporations make money that way etc. It is all lie. BMW etc. have approval process so that you, customer, could know what to use and not wonder around.
In addition, it is impossible to find PDS and MSDS of this oil. Why? Why Joe Gibbs is not sharing performance numbers like other manufacturers? KV100? KV40? HTHS? Noack? MRV? I know that someone did VOA of this oil and turned really unimpressive with additives that were relevant some 15 years ago. Also, it does not have any more ZDDP than any other oil.
However, what I would like to know is Noack of this oil or evaporation loss as well as TAN after OCI.
My advise is to switch to LL01 oil. However, if you feel you own somethign to your friend, stay with DT-40, cut OCI. Go on Blackstone web site, get sample kit. Take sample next oil change and send it to Balckstone. Order in addition to regular analysis TBN and TAN analysis. Post it here, others and I will interpret that for you.
As for Liqui Moly, I stopped using that junk sometimes in 1997 when it became popular in Europe. Now, you are mostly paying for oversized Made in Germany fonts in front. That is it. It is mediocre oil at best.
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Old 01-20-2020, 08:19 PM
Tdavis1094 Tdavis1094 is offline
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Very Informative info I'll be sending in an analysis on the oil and I'll be getting back to you guys. Thanks for all the input as you guys are a big help with my car and I'd like to get other people's opinions besides my buddy's because he's the only one that's worked on my car besides myself. I figured liquimoly was garbage as it burned through it like there was a leak but none whatsoever. One more question what kind of oil do you guys prefer to use in your bmw ? What make and model vehicle as well thanks a lot guys.
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Old 01-20-2020, 08:38 PM
edycol edycol is offline
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Originally Posted by Tdavis1094 View Post
Very Informative info I'll be sending in an analysis on the oil and I'll be getting back to you guys. Thanks for all the input as you guys are a big help with my car and I'd like to get other people's opinions besides my buddy's because he's the only one that's worked on my car besides myself. I figured liquimoly was garbage as it burned through it like there was a leak but none whatsoever. One more question what kind of oil do you guys prefer to use in your bmw ? What make and model vehicle as well thanks a lot guys.
One more thing. I was thinking a bit. DT-40 is advertised as racing oil. Take into consideration that demands of race cars are completely different than demands of regular cars. Race oils do not usually have strong additive pack, and emphasis is elsewhere. This actually could lead to oxidation. It might be very well that this oil on race track provides great performance, but in city driving it might be a problem actually. Demands of city driving, idling, short trips, grocery getting, school drops etc. put different strain on engines, hence, oils have to do different job. I can guarantee you that racing oils are not developed for one hour of idling due to breastfeeding and diaper changing situation.
Right now I ahve in my 328i BMW TPT 5W30. I just got Pennzoil Platinum Euro 5W40 (Pennzoil is rebadged Shell) for next oil change. Pennzoil utilizes GTL base stock which is very good in winter and has lower evaporation loss (take into consideration that BMW oil is made by SOPUS or in US Pennzoil).
However, there are other excellent choices. Motul is very good choice, Valvoline, etc.
Now, I am not working anymore in industry so not sure what is going on with BMW LL01 approval. Some oils do not carry that approval anymore. Castrol Edge 0W30 was my favorite oil for Euro gassers, and I still use it in wife's Tiguan. It is excellent oil, and goes for some $63 for 6qt box on Amazon. In Wal mart you can find Castrol Edge 0W40, another excellent oil that for whatever reason does not carry LL01 as of few months ago.
My take is, buy oil that has these three approvals on the bottle:
BMW LL01
MB229.5
Porsche A40.

Of all, MB229.5 is most stringent approval.

Last edited by edycol; 01-20-2020 at 08:56 PM.
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