2 labs test amsoil ALM 5w20

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pb

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here i go again. from previous thread (http://www.bobistheoilguy.com/forums/ubb...0_V#Post3489100), we discounted the MFA lab results since it's a) free and b) wide range of results in comparison to ALS and polaris' numbers. This test i did not send a sample to polaris.
Code:
		MFA		WIX/als	
vanadium	13		0
silicon		2		5	
sodium		20		3	
molybdenum	123		147	
boron		154		236	
magnesium	99		7	
calcium		4229		3540	
phosphorus	750		712	
zinc		1492		801	
tbn		8.7		11.2	
v40C		72		53.6	
v100C		8.1		9.1	
					
cost		free		18.09	
 

JHZR2

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Originally Posted By: gonefishing
You get what you pay for with MFA.
What's to say which is correct?
 
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It doesn't make sense in MFA's analysis to have 4229 ppm of Calcium, yet only get 8.7 TBN. The Wix analysis is more reasonable. And what's with MFA's measurement of 1492 Zinc with only 750 Phosphorous? Kind of ridiculous.
 
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Originally Posted By: JHZR2
Originally Posted By: gonefishing
You get what you pay for with MFA.
What's to say which is correct?
That's what I said in a similar thread. It makes you wonder just how accurate any UOA is. It could cause you to run spent oil longer than it should be run. Or dump good oil too soon which would considered wasteful but certainly not as bad as running spent oil. Just be off +/- 10%, or more on tbn like in this example and that could screw everything up in determining how long to run an OCI.
 
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