https://www.stle.org/images/pdf/STL.... Esche_The Role Additive Chemistry Plays.pdf
Planning to add a can to my oil on my Subaru ForesterXT. I will do a UOA
Has anyone seen an analysis of the product or a UOA or an oil with this added?
Those that Actually use it know it makes a noticable difference in the way any engine runs ....use it with confidence.
Sure but IMO that's strictly with regards to emissions components which obviously isn't related to the engine.
Maybe you are right, but I like it and use it in everything I own now as of 7/10/2025. I wrote this story a couple times already here on Bitog, probably in this same forum. I was going to have to spend over $500.00 on my 2015 Honda CRV to get rid of a cold start rattle coming from the VVT actuator. It started around 60,000 miles. This particular Honda engine was noted as having this problem. I didn't have to fix it, but it irritated me. I had been reading about different mechanic in a bottle snake oil solutions, of which there are many. I came across Liqui Moly. Of all I read up on, Liqui Moly company does have a stellar reputation for their product quality, compared to other lubricant and additive makers. Anyhow, I poured a full 10.1 ounce can in my 2015 Honda engine at the next oil change. It took a couple days, but the cold start rattle was gone. Their old-fashioned crushed rock works for me. They say it takes 300-400 or so miles for it to form its boundary layer on your engine's interior. I made a point to e-mail and also talked to their technical support on using it in my new 2025 Toyota Rav4 engine. I posted that letter from Stefan at Liqui Moly here on Bitog somewhere. Both Stefen and the guy on the phone said using Mos2 in new engines is safe to use, will not hurt them, and likely help them. If I ultimately have to take my oil pan off someday to scrape out the layer of crushed black rock out of it, so be it. I am going to use their newest engine oil in my new Toyota next oil change. Liqui Moly tech did tell me it is not necessary to use Mos2 or their Ceratec in that particular oil because there is a built-in anti-friction ant-wear additive already in their Molygen engine oils, using the Mos2 or Ceratec would be wasteful, basically do no good. I am going to use Liqui-Moly Molygen 5w-20 in my new Toyota. If I switch to a different oil later, the Mos2 will be back in. I have used Liqui Moly engine oil in the past and like the results. That was their Top Tec 4600 5w-30. My next favorite engine oil is Royal Purple HPS, the Royal Purple engine oils I use must have their "Synerlec" additive to make the difference. The HPS oils are not API rated however, which is why I chose to try the pretty green Liqui Moly instead. Liqui Moly started their company on the Mos2 additive in the late 1950's. It is safe to use in brand new 2026 engines, if you want to. Nobody is being forced to use it, and it does make your engine run better in many cases. Take Care SubieRubyRoo
