It is Hard to Compare Oils

[AEHaas]

2 Labs, same virgin oil. No wonder it is hard to compare. This is Mobil One 0W-20. aehaas Iron__________<1__________1 Chromium _____<1__________0 Nickel ________<1__________0 Aluminum ______3__________1 lead __________<1__________0 Copper ________<1_________0 Tin ___________<1__________0 Silver ________<.1__________0 Titanium ______<1__________0 Silicon ________4___________3 Boron ________247_________161 Sodium _______15__________5 Potassium ____<10_________0 Molybdenum __ 164_________58 Phosphorus __1375________ 642 Zinc ________ 1328________672 Calcium _____ 3456________2013 Barium ______<10_________NA Magnesium ____53_________17 Antimony _____<30________NA Vanadium _____<1_________NA Fuel %Vol _____0__________0 Wtr %vol ______0__________0 Vis 100C ____9.0 cS________Visc 210F 55.3 SUS Gly test ______NEG_______NEG TBN _________9.87_______not done

 

[Bryanccfshr]

From the trends lately I can tell who made each. The main indicator is how viscosity is measured. The other is the low elemental readings on the right column. Something isn't right there and I have not sent out my used oil for analysis because of that but have it labeled and stored until I can figure out where to send it

 

[rg144]

Something is whacked with the first column - zddp way off. Lab must've sent the wrong report. I often wonder how many they process in a day and what is the chance of error.

 

[buster]

I've been saying this for awhile. From one lab to the next it can vary so much. We see it all the time with Blackstone/Avlube Etc. Makes it hard to tell.

 

[427Z06]

Were both Labs aware that these were virgin oil samples? It'd be fun to doctor the color of the samples to make them look used and try again. [ March 16, 2005, 08:37 PM: Message edited by: 427Z06 ]

 

[427Z06]

Hmmm...just was a victim of the Forum double posting on me. Bad, bad, software...needs to be spanked and put to bed without dinner.

 

[AEHaas]

The left-hand lab was told the sample was virgin, but the right-hand specimen was unlabeled. The right-hand lab stated in their analysis that it looked like a virgin analysis. I forgot to mention that this is the "old" SL oil. What did Mobil claim was their Zn level? aehaas

 

[rg144]

SL oil would definitely be <1000 Here is a low mileage UOA for it: lowest UOA

 

[buster]

I just picked up some 0w-20 I found at PepBoys. Regarding ZDP levels, Mobil has been below 1,000 for at least 2-years now. They were around 850-950 ppm about 2 years ago or so. The last year they have been around 700 ppm P/800 Zn

 

[haley10]

The left column is totally whacked. The zddp levels could have never been present in an SL, API oil. Under 1000 for zinc and phosphorus for sure.

 

[ebaker]

A VOA 12/12/04 from Butler cat I saved showed: Mo 52 or 82 (blurry) Na 10 B 226 Ca 3199 Mg 22 P 1020 Zn 1144 Vis cSt 100C 9.5

 

[AEHaas]

Thanks for the additional report ebaker. One thing is for sure, use only one lab for all your tests. And you should always send in a control oil as well. As stated several times before, get serial tests to follow the trend. A single test, even a "bad" one should be followed by another in fewer miles. The trend is very important. aehaas

 

[AEHaas]

This oil is 2 - 3 years old. OK, 1200 may be high but certainly 600 is too low. Does anybody know what they claim to have put in there? aehaas