Liqui Moly Leichtlauf 5W-40

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Apr 24, 2019
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Texas
Here's the Liqui Moly Leichtlauf 5W-40 VOA I hinted at in my Valvoline Euro thread.

Looks good. No issues. On the thinner side of 5W-40 but within range. This bottle has a date of 2023 but it was shaken vigorously for 10 minutes before sample was taken to ensure nothing fell out of suspension. This bottle is API SP for those curious.

Screenshot 2025-07-17 174026.webp
 
Here's the Liqui Moly Leichtlauf 5W-40 VOA I hinted at in my Valvoline Euro thread.

Looks good. No issues. On the thinner side of 5W-40 but within range. This bottle has a date of 2023 but it was shaken vigorously for 10 minutes before sample was taken to ensure nothing fell out of suspension. This bottle is API SP for those curious.

View attachment 289995
https://www.oaitesting.com/contact.aspx

Thank you for the VOA that you posted here, but the Link I sent you will give you a better VOA!
Blackstone was what it was back in the day but using them today is kind of like a Blind person, meaning, Blackstone, going 1 on 1 with anyone in anything.
 
https://www.oaitesting.com/contact.aspx

Thank you for the VOA that you posted here, but the Link I sent you will give you a better VOA!
Blackstone was what it was back in the day but using them today is kind of like a Blind person, meaning, Blackstone, going 1 on 1 with anyone in anything.
Umm why? I just dropped $100 on two tests and now I'm being told I used the wrong lab? I'm confused.
Seems an emissions friendly oil but that viscosity is a bit low like you said. Thanks for testing it.
Would you recommend this over the Valvoline European I posted yesterday or the Valvoline? I have access to both but I'm trying to decide which flavor I want to use in my next oil change. Thanks!
 
Umm why? I just dropped $100 on two tests and now I'm being told I used the wrong lab? I'm confused.

Would you recommend this over the Valvoline European I posted yesterday or the Valvoline? I have access to both but I'm trying to decide which flavor I want to use in my next oil change. Thanks!
You will get a better analysis for less money with OAI. This is both a VOA and a UOA, do a Google search on both OAI and Blackstone, put in Bitog before you put in OAI or Blackstone.

Here is an example, Problems with Blackstone UOA's or Problems with Blackstone VOA's, see what comes up. I could be wrong, but I do not think you will find any problems with OAI.
 
You will get a better analysis for less money with OAI. This is both a VOA and a UOA, do a Google search on both OAI and Blackstone, put in Bitog before you put in OAI or Blackstone.

Here is an example, Problems with Blackstone UOA's or Problems with Blackstone VOA's, see what comes up. I could be wrong, but I do not think you will find any problems with OAI.
okay I'll check them out. Whats the cost?
 
Would you recommend this over the Valvoline European I posted yesterday or the Valvoline? I have access to both but I'm trying to decide which flavor I want to use in my next oil change. Thanks!
That's up to you, Valvoline seems to be a bit thicker & with fuel dilution should help a bit. Might save some $$ to boot so Valvoline is a somewhat easier choice.
 
Umm why? I just dropped $100 on two tests and now I'm being told I used the wrong lab? I'm confused.
I agree to use Oil Analyzers. Here is why. Blackstone charges more money for less. They do not include TBN, oxidation, or gas chromatography in their stock results, while OAI does. Blackstone does offer Universal Averages and more personalized feedback. The Universal Averages are very handy and it's the only reason I'd use BS *once* if you'll be sampling the same vehicle multiple times. Blackstone's Flashpoint is how they infer fuel %, and it is not very accurate. Several posters here sent the same sample to BS and OAI and OAI's direct measurement of fuel in the oil is typically 4x higher than BS's inferred method. Of course on a virgin oil sample, there is no fuel, but you get the point.
https://www.amsoil.com/p/oil-analyzers-test-kit-ups-pre-paid-oaiuppkit/?code=KIT02-EA
They do charge tax and shipping, but if you buy multiple kits, the cost per kit goes down quite a bit (I think free shipping over a certain dollar amount).
 
Compare it to the ones I've posted here.
Could you elaborate what you mean?
I agree to use Oil Analyzers. Here is why. Blackstone charges more money for less. They do not include TBN, oxidation, or gas chromatography in their stock results, while OAI does. Blackstone does offer Universal Averages and more personalized feedback. The Universal Averages are very handy and it's the only reason I'd use BS *once* if you'll be sampling the same vehicle multiple times. Blackstone's Flashpoint is how they infer fuel %, and it is not very accurate. Several posters here sent the same sample to BS and OAI and OAI's direct measurement of fuel in the oil is typically 4x higher than BS's inferred method. Of course on a virgin oil sample, there is no fuel, but you get the point.
https://www.amsoil.com/p/oil-analyzers-test-kit-ups-pre-paid-oaiuppkit/?code=KIT02-EA
They do charge tax and shipping, but if you buy multiple kits, the cost per kit goes down quite a bit (I think free shipping over a certain dollar amount).
Ok I'll check them out. I'll buy 3 of those and compare. I'll do the VOAs again. I have a UOA on the horizon too but I'm still 800mi out from my oil change. In due time!
 
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