LM Leichtlauf 5W-40 4.5k mi; BMW 335i

[sfbmw]

Sample taken from a 2011 BMW 335i 6spd using LM Leichtlauf 5W40 API SN. What are folks thoughts on fuel dilution and viscosity? Wear metals seem OK to me at 8ppm/1k mi.

 

[fantastic]

Viscosity a bit low for the mileage but fuel seems reasonable. Perhaps this engine is a little harder on oil? You'll need to test more to confirm.

 

[drtyler]

VOA of the SP version was posted today. It was done by a different lab, so there will be some variation based on that. It's 100C viscosity was 12.23 cSt. Not much difference from your UOA. Fuel dilution doesn't appear to be too bad. I would say that everything is ok.

B

Thread 'Liqui Moly Leichtlauf 5W-40'

Jul 17, 2025

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.

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