I'm with you that there is no objective statistically significant evidence that MMO does anything for either stuck valves or for that matter, lead scavenging, although it DOES have a tiny bit of TCP in it, which is used for lead scavenging. Multiple anecdotes do not equal data - I've NEVER used MMO in my engine over a 15 year period and have never had a stuck valve - what does that prove? But there's no evidence that it does any harm, either, unless you really don't like the smell (which I don't).
With respect to the question of "lard", the MSDS for MMO:
http://www.audiosears.com/MSDS/FS043...tery%20Oil.pdf
indicates five total components, none of which are animal derivatives. There's no lard in MMO, according to the folks that make it.
Marc J. Zeitlin
marc_zeitlin@alum.mit.edu
www.cozybuilders.org/
www.burnsideaerospace.com
Copyright © 2024
Marc J. Zeitlin
marc_zeitlin@alum.mit.edu
www.cozybuilders.org/
www.burnsideaerospace.com
Copyright © 2024