I can only vouch for LiquiMoly Street Race 10W50 which I used on my 2014 Daytona 675, and that reduced the cold start sound and vibration, and the engine generally ran quieter than with Castrol.
I've been using this exclusively in 3 of my cars. 2004 ford mustang, 2008 Chevy Suburban and a 2015 Mercedes CLA 250. All cars are over 120k on the clock and none have any excessive wear or leaks. I change the oil every 5 to 6k miles. No problems yet. It's a very solid product.
It’s all I use. No issues, I can’t say for sure if it made any difference with anything but I trust it.
A bit in the expensive side, but I use it and several Liqui-Moly products.
I used it often this product and like it very much. (I used it in my 2005 E320 CDI; I haven’t used it in my W123).
I've been using liqui moly for a while now and its been great.
As to which one, the two that are reported to induce the *least* consumption are Liqui Moly Leichtlauf, and Fuchs Titan Super Syn.
Liquid Molly 5W-40 is what I use in mine.
I run liquimoly and it has been great in every vehicle I've put it in. I run WIX XP filters. All my engines run beautifully. My ram 1500 tows frequent and gets ran harder than most.
My 2019 consumed maybe 1/2qt for the first two oil changes. Swapped to Liqui Moly last 2 changes and been zero oil consumption.
my personal analysis’ on my s54 over the past 7 years using LM 10/60 have all been perfectly fine with low wear numbers.
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