I don't want to start a war here, but both products are added to the oil; each has its own unique chemistry and attacks the cleaning problem in two entirely different ways. One thing is for sure, neither product is an additive in the sense that you add or modify the existing additive package already in the oil as they both blend into the oil.
Auto-RX uses an ecological ester package as a solvent to slowly clean the internals of an engine.
LC uses a set of aromatic hydrocarbon solvents to clean a bit more aggressively and to reduce oil oxidation.
I have used both (excellent) products at different times and will continue to do so.
Look at this way, in a land with the freedoms we have, aren't we glad we have a choice of products and can express opnions?
Cheers,
Mola
[ October 29, 2003, 03:40 PM: Message edited by: MolaKule ]