VW g60 REDLINE 10W40 starting engine noise measurement. 

Here is the same measurement, with cold engine, after pumping out the 3 of the 4 litters of the LIQUI MOLY TOPTEC 4100, OW40, and injecting 3 quarts of the REDLINE 10W40.
Ambient temperature: 30 C°.
This noise reduction is not immediate but after some seconds of operation, probably as a matter of oil circulation.
I am wondering if I have done something wrong.
Unfortunately the sound is, unintentionally, closed.
The Syncro Heresy