Porsche 996 Carrera 3.6 l. Valvoline VR1 5W50

[juankimalo]

Hi guys:

Porsche 911 (996) Carrera 3.6 l. Model year 2004
Valvoline Racing VR1 5W50
Here you can see the results of the analysis.

11 months oil time from last change
6.700 km made from last change
(The car has 44.600 km)







I'm not an expert and I'd like to know why the result of Silicon is so high

Thanks

 

[Artem]

Ummm.... its all in spanish or something

 

[dtt004]

Hi.

I don't understand too much because it's all in Spanish, but it's similarly formatted to the usual oil analysis reports that are posted.

Silicon can be an engine oil additive, or it can also be an indicator of contaminants inside your engine oil. Usually this arises from the air filter. Usually.

Your quickest bet is to examine the air filter. It may need to be replaced, or if you are using a reusable-media air filter, then it probably needs to be cleaned. I don't personally think the silicon is too high, but it is the standout contaminant in this report.

I also do not have much experience with the VR-1 oil, but it is formulated for racing, so the additive package is different.

Remember, racing oil is not always better for street use. They are two different operating conditions requiring two different types of oils. Believe it or not, street operation places as much stress on the engine as if it was raced. It's just the variables acting on the system are different.

 

[2006_Charger_R/T]

1. Bad or broken air filter?
2. K&N or equivalent oil-type air filter?
3. Leak around filter?
4. Leak in air intake system?
5. Left over sand casting. Highly unlikely.

 

[juankimalo]

The air filter was replaced at the same time of the oil change.
It's an OEM air filter.

It has 6.700 km, never driven through sand roads or dirty asfalt



Originally Posted By: dtt004
Hi.

I don't understand too much because it's all in Spanish, but it's similarly formatted to the usual oil analysis reports that are posted.

Silicon can be an engine oil additive, or it can also be an indicator of contaminants inside your engine oil. Usually this arises from the air filter. Usually.

Your quickest bet is to examine the air filter. It may need to be replaced, or if you are using a reusable-media air filter, then it probably needs to be cleaned. I don't personally think the silicon is too high, but it is the standout contaminant in this report.

I also do not have much experience with the VR-1 oil, but it is formulated for racing, so the additive package is different.

Remember, racing oil is not always better for street use. They are two different operating conditions requiring two different types of oils. Believe it or not, street operation places as much stress on the engine as if it was raced. It's just the variables acting on the system are different.

 

[unDummy]

Its good that the air filter has been replaced. Hopefully that will cause the Si to drop with your next UOA. If it doesn't, the engine is sucking in unfiltered air somewhere.

If engine was serviced and RTV/Silicone liquid gasket was used, it'll show high Si in the oil but that will taper off with each oil change.

You need a VOA on the oil itself for comparison.

I'd change the oil out a little earlier next time.

 

[juankimalo]

The chemist told me that the Silicon high percentage wasn't due to dust, because they didn't appreciate 1/3 of Alluminun

Perhaps I didn't take the sample correctly

 

[Turk]

Originally Posted By: unDummy
Its good that the air filter has been replaced. Hopefully that will cause the Si to drop with your next UOA. If it doesn't, the engine is sucking in unfiltered air somewhere.

If engine was serviced and RTV/Silicone liquid gasket was used, it'll show high Si in the oil but that will taper off with each oil change.

You need a VOA on the oil itself for comparison.

I'd change the oil out a little earlier next time.



+1

 

[Eddie]

Looks very good on the wear metals, H20, Oxidation and viscosity.

 

[Steve S]

Nice car.

 

[Steiner]

Just a note on the VR-1 "Racing" Oil.....

It's not a true racing oil in the traditional sense. It has a regular detergent and additive package for normal street use and oil change interval. They throw the "Racing" label on it because it does not meet the phosphorus limits for an SM/SN rated oil as it is supposed to be higher in ZDDP than currently mandated levels; kinda like how all the aftermarket exhaust manufacturers throw the label "off highway use only" on their products since they don't meet noise guidelines. However, I can imagine some people that are running that oil with performance flat tappet cams taking a look at the zinc number and getting upset....

Since this oil sample comes from Spain I can't say whether the same guidelines for manufacture or rating applies to it as in the US though.

 

[Doug Hillary]

Hi,
juankimalo - Sorry but I can't comment on your single pass UOA

Valvoline make some excellent lubricants and this is one of those. It has similar characteristics to Porsche Approved M1 5W-50 - except for Pour Point (-42C against -54C)

However this viscosity is not really required in your car and you may find a 0W-40 or 5W-40 Porsche Approved lubricant a better overall choice

 

[Audi Junkie]

lol.

 

[aquariuscsm]

On this UOA,iron is 6ppm and copper is 8ppm. The wear metals are very low. Looks like it`s protecting your engine very well! Valvoline makes some of the best oil imo. Keep on using it :^)

 

[juankimalo]

Originally Posted By: unDummy
Its good that the air filter has been replaced. Hopefully that will cause the Si to drop with your next UOA. If it doesn't, the engine is sucking in unfiltered air somewhere.

If engine was serviced and RTV/Silicone liquid gasket was used, it'll show high Si in the oil but that will taper off with each oil change.

You need a VOA on the oil itself for comparison.

I'd change the oil out a little earlier next time.





Mistery solved!!!

jake Raby from Flat 6 Innovations told me it's was due to RTV Sealant!!

 

[juankimalo]

Originally Posted By: Doug Hillary
Hi,
juankimalo - Sorry but I can't comment on your single pass UOA

Valvoline make some excellent lubricants and this is one of those. It has similar characteristics to Porsche Approved M1 5W-50 - except for Pour Point (-42C against -54C)


Yes, but I live in Madrid and in winter we have several days close to 0ºC (32º F). It's not an important detail for me.
I'll never seen low than -5ºC ( 23º F) here, but in summer we suffer sereral days at 40ºC (104 ºF)
That's why I used Mobil 1 5W50. It's Porsche Approved.

But as you know, Valvoline produces excellent lubricants. The VR1 5W50 is not Porsche Approved but is similar to Mobil 1.
Valvoline Synpower 5W40 would be the best choice but I looked at SAE 50 for hot temperatures.

Nevertheless, Valvoline is superior to M1 in HTHS = 4,6

Look at this table I did some months ago:

Originally Posted By: Doug Hillary
However this viscosity is not really required in your car and you may find a 0W-40 or 5W-40 Porsche Approved lubricant a better overall choice


You're right. Look at this other table:

I read that Redline is a high valued lubricant.



Another question Doug:

It was my first UOA.

Where could I find the average numbers to compare the results?

Thanks in advance

 

[juankimalo]

Originally Posted By: aquariuscsm
On this UOA,iron is 6ppm and copper is 8ppm. The wear metals are very low. Looks like it`s protecting your engine very well! Valvoline makes some of the best oil imo. Keep on using it :^)


Thanks

I purchased it again yesterday. The best Porsche specialist in Madrid (Spain), always use Valvoline. They don't like M1 0W40 in our climate area.

 

[Doug Hillary]

Hi,
juankimalo - I know Madrid and I was in Vigo (Baiona too) last year - great places!!

I live in a similar climate to you here in OZ - around -5C winter to >40C summer, but in the Tropics with very high humidity in our (now) wet season!

Porsche require a minimum HTHS viscosity of 3.5cP/mPa-s.

Above 4 is probably counterproductive!

I only run at 4 because may car has been slightly modified to run hotter than normal ("normal" around 94C - mine at 98-104C) and is used for long distance high speed trips

Some evidence exists that too high an HTHS may be counterproductive to engine efficiency and (circumstantial)durability in our engine "family"

Regarding UOAs - you must trend yours for a good outcome for you. Your current figures look good for a single pass UOA except for Si and the PQ Index. But wirhout a PQI datum point it may in fact be OK

Perhaps a UOA every six months may be best to establish you trend! You could also set your OCI from the results!!

IME it is not always wise to have too much confidence in independent Porsche shops! Sadly many are not very knowledgable regading lubricants - many push what they get the best return from!

Enjoy your car in a great Country

 

[rshunter]

Here is a translation of what the report states...

Viscosity is low for an oil 5w50. Contamination by fuel is not appraised. An abnormally high silicon content is appraised. To external contamination (dust) and/or silicon meetings or similar can have. (It does not seem that it is external contamination since aluminum presence is not detected along with silicon in proportion 1/3)

 

[juankimalo]

Sorry Doug.

I'm a newbie in UOA. I don't know the meaning of PQ, and the importance of this detail. Could you explain it please?


I don't understand "trend" due to my poor english
Do you mean to look for my own "baseline"?


I'll take note about the viscosity (HTHS <4)