Oil and Blown Engines. Oil data needed.

[Dirtleg]

*** This thread is not about Blown Engines***

Okay I've been following as much as I can the issues some people have had regarding excessive oil consumption and in extreme cases blown engines.

My concern is that certain oils may be more susceptible to misting in the crankcase. In that event it could be that certain oils are prone to bathing the PCV and catch cans with more vapors than they can handle leading to oil consumption and other associated issues.

My intent for this tread is to open a line of discussion in the event there is actually some merit to the idea. I am fully aware there may not be any merit to it but without asking the question, documenting the responses and looking at the data it will not be something that can be used to help determine the cause of the issue.

The questions I have to ask are;

1. What brand, weight, type of oil are you using?

2. How often do you change the oil?

3. Are you using a catch can and if so which one?

4. If using a catch can how often do you empty it out?

5. How much accumulation do you have when you empty it?

6. If you're willing/capable of checking, how clean/oily is your throttle body? @ how many miles?

If this is true a pattern should be identifiable if enough thoughtfully presented, consistent data can be gathered.

This is not a brand "x" vs "y" thread. I don't care about brand names, reputations, or opinions. Lets get some real world data flowing from the real world experiences of the forum users.

One important note. If there are actually any results to be found here the more specific and accurate your data is the better. It could also be that it's not an oil issue at all but again reviewing the data will lead to that conclusion if that is the case.

I realize this is a way out there idea but it would not be the first time certain engines and certain oils didn't play well together.

Just to clarify the intent of this thread again.

If you guys/gals would be willing to compile and share the information asked for I will collect the data and put up a spreadsheet to see if there is a pattern to found in there somewhere.

Regardless of the end result it would be good to be able to acknowledge there is an issue or rule it out.

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[greg hazlett]

1. Amsoil sig series 5w-30

2. Oil had 4500 miles on it when it went boom

3. UPR DVCC and now the CSCC after the boom

4. As needed but it had been emptied twice before boom

5. At least half full both times

6. Oil in TB AFTER gutting the PCV to eliminate the turbo smoke show

I think you need to add one more data point- gutted PCV or not

 

[jbailer]

1. What brand, weight, type of oil are you using? Pennzoil Platinum w/Pure Plus 5W-30

2. How often do you change the oil? ~7500 miles

3. Are you using a catch can and if so which one? Mishimoto

4. If using a catch can how often do you empty it out? 8,000 miles (LOL forgot)

5. How much accumulation do you have when you empty it? 1/4 full

6. If you're willing/capable of checking, how clean/oily is your throttle body? @ how many miles? 18,000 miles and it's clean and bone dry.

7. PVC = Unmodified stock, old style PCV

 

[menaecoboost]

1. Castrol 5w-30
2.3000-4000 miles
3.upr dual valve CC
4. Usually with every oil change.
5. 1/8-1/4 full
6.at 10k miles TB is clean
7. Pcv is gutted

 

[neodark]

1. Rotella T6 5W-40, probably going to x-cess on next change.
2. 5K
3. UPR Single w/ check valve (Going to dual soon)
4. W/ oil change
5. 1/10th full. I could go 3 or 4 oil changes without issue.
6. No oil, perfectly clean @ 11k Mi.

 

[Cobra Jet]

Good thread!

I think one good thing to add would be for those who have had catastrophic engine failures to post up what cylinder (or cylinders) failed... There may be a common failure trend that needs to be mapped.

 

[sk8erord]

1. Rotella T6 5W-40
2. Every 5k, or after a track day.
3. Mishimoto CC
4. Every oil change
5. About 1/2 full (not sure how many oz that is)
6. Bone dry, no oil @ 21k miles

 

[TunaFish15]

1. What brand, weight, type of oil are you using? Pennzoil Platinum w/Pure Plus 5W-30

2. How often do you change the oil? 8000 miles

3. Are you using a catch can and if so which one? UPR single catch can(revised version)

4. If using a catch can how often do you empty it out? Every 3,500 miles

5. How much accumulation do you have when you empty it? 1/8 full.

6. If you're willing/capable of checking, how clean/oily is your throttle body? @ how many miles? 21,000 miles and dry.

7. PVC = Unmodified stock, old style PCV

 

[dsmisfits]

So, I will be the first to say I don't know everything about cars, but I just checked my mishimoto catch can with 1000k ran through it and I maybe have 10 drops of oil if that. I checked my Throtte Body and no oil. I am curious of those with blow by or blown engines how their cars were broken in, I beat the crap out of mine during the break in time frame. I have had GTIs and GLIs with up to 180k without issue and either apr tuned or Giac tuned from the start. Not saying VWs are better or worse then Eco. This is what happens when I got done with work early and decided to tinker and I figured I check. My car has the old style PVC and is not gutted.

 

[Tune+]

I think people are getting riled up for something very minor, have a read of the post I just made in the other thread. You will have issues with oil in the intake system/manifold/throttle body when the crankcase is pressurized.

 

[Tucsonturbos]

1. Pennzoil Plat 5w30

2. every 5000 miles

3. Mishimoto (vented to atmosphere)

4. roughly every 3000 miles

5. 1/8-1/3rd full out of 3 times checked

6. 10,000 and dry

7. PVC = gutted old style

 

[Wblv17]

isn't this for motors that have blown?

 

[Dirtleg]

isn't this for motors that have blown?

I'm more or less attempting to track the oil accumulation caught relative to the miles driven. If a certain oil shows that it consistently produces higher or lower numbers under similar conditions it could be an indicator of how well that oil resists turning into oil vapors in the crankcase.

Also if there is a trend of oily throttle bodies on cars with low oil accumulation it could point at other issues such as turbo seals. And again if it were more common with one oil than another there would be data to support it.

So really not just for blown motors as I'm sure that sample size would be too small to really see a pattern like this if indeed one exists. I don't even know that it does yet hence this thread.

And thanks for the responses so far.

I noticed that Tunafish 15 added his PCV configuration to his list. I overlooked that but it would be good to know that too. On that note I'm fully aware I may have overlooked more things that would be helpful. So if any of you have any suggestions lets hear them.

I'll get the spreadsheet started over the next week. I've got an intercooler to install this weekend.

I'm going to look into hosting the spreadsheet online once it's functional so that you can enter the data yourself. That way it'll be more "alive" and we'll have easy access to the current results.

 

[Juben]

1. What brand, weight, type of oil are you using?

Pennzoil Ultra, 5w30, full synthetic

2. How often do you change the oil?

Every 5,000 miles unless I've been to the track a lot at which point I'll change it every 3,000 miles.

3. Are you using a catch can and if so which one?

UPR Dual Valve Catch Can (DVCC)

4. If using a catch can how often do you empty it out?

Every 2,500 miles

5. How much accumulation do you have when you empty it?

3 oz. - 4 oz.

6. If you're willing/capable of checking, how clean/oily is your throttle body? @ how many miles?

My throttle body is spotless as are the charge pipes and BPV. I've currently got 35,000 miles on the car.

Other notes:

I'm running an old style gutted PCV. I recently had the intake manifold on mine removed and the intake valves looked really good too with very little to no buildup on them.

I also agree with Adam that the issue seems to be a bit overblown. There's a multitude of people running gutted setups and catch cans without disastrous results. I'd put my money on that engine already being hurt, e.g. broken ring lands or cracked piston, which allowed the crankcase to become pressurized. That's where I think the oil came from in that situation as it's been an isolated incident thus far and hasn't been repeated with anyone else's car running the same setup.


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[jrock]

Is this trend about info needed for Blown Engines:

Is that the case? Right now, it look like Pennzoil has the most "Blown engines"???

Or is everyone just answering the questions without a blown engine?

Just wondering?

"Oil and Blown Engines. Oil data needed."

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