Originally Posted By: addyguy
I don't know how true this is, but I've read in a history of synthetic oils article that 'Neo' oil is the old 'Eon' oil company re-named.
Eon was one of the first syn oil companies around, and they made a diester 10W-40 in the early 1970's that was made by Emery, and was basically the same as early Amsoil and other diester 10W-40's.
My recollection correlates with yours. EON was headquartered in Houston and was a trade name for Pacer Lubricants. They later changed it to Ultron. E-11 was a 10W-40 diester. Later they added a 5W-30. They also sold an SAE 30 for diesels, D-20, a 10W-50 motorcycle oil, G-1050, a two-cycle synthetic, T-2, an ATF, and some greases and lubes.
This would around the same time Amsoil was Amzoil.
I have never been able to document any connection at all between these folks and the NEO outfit in California, and just assumed that whoever said there was a connection was simply passing on misinformation.
Samples of NEO that I have seen over the years have had some strange additives for a motor oil such as, my recollection is the same as yours, lead. That led me to conclude that trying it out in any engine I valued was foolhardy.