UOA from Russia: Honda CRV 2.4L - Liqui Moly 5W-40

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Hi guys! This is my first post here. Moscow city, terrible traffic. friend's car - Honda CRV 2,4L gasoline. Oil - LiquiMoly TOP TECH 4100 5W-40 - typical european formula.

Code:


Miles on Oil: 7458

Miles on Unit:26103

Sample Date: 06/30/2011

Make up oil: 0.2 L



Aluminum 6

Chromium 1

Iron 42

Copper 8

Lead 0

Tin 0

Molybdenum 69

Nickel 0

Manganese 1

Silver 0

Titanium 0

Potassium 1

Boron 71

Silicon 28

Sodium 5

Calcium 2240

Magnesium 9

Phosphorus 831

Zinc 990

Barium 0



cSt Viscosity @ 40oC 80.4

cST Viscosity @ 100oC 13.5

Flashpoint, n/a

Fuel 2.7%

TBN 2.46

TAN 5.76

Oxidation 25

Nitration 38
 
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Analiz kakoy laboratorii? Zheleza mnogovato, a tak norm.
 
Originally Posted By: zyxelenator
welcome2.gif
Analiz kakoy laboratorii? Zheleza mnogovato, a tak norm.

Polaris laboratory.
 
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I work with a guy from Russia!

Wow - that's a lot of Iron. There's some wear going on in that engine. Those are not the best driving conditions at all and I would not extend the oil changes out too high.

Have a great day over there!
smile.gif
 
Originally Posted By: tpitcher
Wow - that's a lot of Iron. There's some wear going on in that engine.

agree.
I think that silicon is a reason
 
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Yes, change the air filter and check the air flow system for leaks.
thumbsup2.gif
 
Originally Posted By: tpitcher
Yes, change the air filter and check the air flow system for leaks.
thumbsup2.gif



ha!
oil change was done on 9320 miles (Official Honda service - 15 000 km = 9320 miles OCI)
frown.gif

then there were 2 tests of the new oil - virgin and after 217 miles (actually a fresh oil with some part of previous LM). Important point that TBN (ASTM D-4739) decreased from 9.74 to 7.18 after 200 miles! Acid components as well as Iron and Silicon come from previous oil.
Code:


LiquiMoly LUKOIL LUXE Synthetic 5W-40

VOA UOA

Miles on Oil: 7458 0 217

Miles on Unit:26103 -- 26300

Sample Date: 06/30/2011 -- 08/22/2011

Make up oil: 0.2 L -- 0



Aluminum 6 0 0

Chromium 1 0 0

Iron 42 0 8

Copper 8 0 1

Lead 0 0 0

Tin 0 0 0

Molybdenum 69 0 11

Nickel 0 0 0

Manganese 1 0 0

Silver 0 0 0

Titanium 0 0 0

Potassium 1 0 0

Boron 71 49 45

Silicon 28 4 9

Sodium 5 1 2

Calcium 2240 2880 n/a

Magnesium 9 12 n/a

Phosphorus 831 918 n/a

Zinc 990 1017 n/a

Barium 0



cSt Visc @ 40oC 80.4 77.7 74.7

cST Visc @ 100oC 13.5 13.61 13.0

Flashpoint, n/a n/a n/a

Fuel 2.7% --- 1.3%

TBN 2.46 9.74 7.18 !!!!!

TAN 5.76 2.61 n/a

Oxidation 25 ---

Nitration 38 ---


ps. sorry for my english
 
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Daaa, i'm starting to think that the oil might be a little too thick for this engine. In the US, this engine would spec 5w20.

If the oil is too thick, it's taking much longer to get to where it needs to be, so engine wear increases.

You also mention that the oil was changed @ 9,300 miles but the report shows that you sampled @ 7,450 miles... if you added another 2,000 miles after then sample, i'm sure EVEN MORE engine wear was done during that time.
 
Originally Posted By: Artem
Daaa, i'm starting to think that the oil might be a little too thick for this engine. In the US, this engine would spec 5w20.

If the oil is too thick, it's taking much longer to get to where it needs to be, so engine wear increases.

You also mention that the oil was changed @ 9,300 miles but the report shows that you sampled @ 7,450 miles... if you added another 2,000 miles after then sample, i'm sure EVEN MORE engine wear was done during that time.


I too wonder why 5w-40 is being used. Isn't Moscow a colder climate, like northern US?
 
Originally Posted By: ltslimjim
Artem said:
I too wonder why 5w-40 is being used. Isn't Moscow a colder climate, like northern US?

Moscow climate - -10-20oC in Winter (sometimes -25-30), +25+30oC - in Summer (sometimes +35). 5W-40 is the 2nd popular grade in Rissia after 10W-40. 5W-20 i think less than 0,5% of total volume. our drivers think that use of low viscosity oils like 5W-20 lead to engine wear.
 
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Originally Posted By: ltslimjim
^I'd suggest a compromise. Find a 0w-30 full synthetic; Liqui Moly makes a very good 0w-30

thanks
grin.gif

as i mentioned this is not my car. for me LM is too "marketing" oil. i prefer another brands - mobil/castrol/lukoil
 
Originally Posted By: avss1
Originally Posted By: ltslimjim
Artem said:
I too wonder why 5w-40 is being used. Isn't Moscow a colder climate, like northern US?

Moscow climate - -10-20oC in Winter (sometimes -25-30), +25+30oC - in Summer (sometimes +35). 5W-40 is the 2nd popular grade in Rissia after 10W-40. 5W-20 i think less than 0,5% of total volume. our drivers think that use of low viscosity oils like 5W-20 lead to engine wear.


i would have to agree that the 5w-40 could be too thick. what does honda recommend? i would be surprised if it was 5w-40. uoa's of 5w-20, 0w-20 in the honda 2.4 show minimal wear. this particular engine is "easy" on oil. have your friend check the owner's manual.
 
My experience of 5w40 in a Canadian winter (which is just as bad) in an engine that also spec's 5w20 didn't yield results that looked anything like this.
 
Originally Posted By: OVERK1LL
My experience of 5w40 in a Canadian winter (which is just as bad) in an engine that also spec's 5w20 didn't yield results that looked anything like this.

5w-20 does not exist in Honda manual for Russia (p.410-411)
wink.gif
, sorry for russian version http://www.hondaonline.ru/docs/CR-V_guide.pdf
 
Originally Posted By: avss1
Originally Posted By: OVERK1LL
My experience of 5w40 in a Canadian winter (which is just as bad) in an engine that also spec's 5w20 didn't yield results that looked anything like this.

5w-20 does not exist in Honda manual for Russia (p.410-411)
wink.gif
, sorry for russian version http://www.hondaonline.ru/docs/CR-V_guide.pdf


Hey, I'm not telling you to run 5w20, LOL. I'm saying there really shouldn't be much of a difference in the UOA results. I used both Mobil 1 5w20 and Delvac 1 5w40 and the difference between the two in terms of UOA results were negligible.
 
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