I was looking at the 2020 Chev owners manual and checked what lube GM recommends for all the miscellaneous small lubricant requirements. Here it is. So I checked my owners manual from my 2008 Burb and the same product is mentioned there. So for at least the last 12 years GM has been specifying this lube, which is Teflon based. The Teflon patent which was owned by DuPont has run out. The chemical name is Polytetrafluorethylene (PTFE). Almost all lube manufacturers now have a PTFE product.