Hello, everyone: I'm down to my last can of Gulf "Part-Ease" Loosener & Lubricant. This stuff contains colloidal graphite, petroleum distillate and 1/10 of one percent ortho triaryl phosphate that creates a graphited, heat-resistant film to keep the valve operating freely. It really works. I came up empty on a search for this and Mopar p/n 1879318. Does anyone know of a comparably formulated solvent that works well on these heat control valves? Best, Ron Kurtz E #292 [Non-text portions of this message have been removed] I have used a Macs product that is available at NAPA parts stores. Part number is 1413, Dry Graphite Film Lubricant (DGF). Also, Jig-A-Loo has a similar product that also works well and I remember came from Home Depot. I have used this type product for many years on every lug nut and bolt I have touched. I find it superior to anti seize products (like my favorite Never Seez) that leave a residue as the residue collects dirt; DGF does not. And, without the DGF (or an anti seize product and not ordinary oil), wheel fasteners are very likely not torqued properly. Very important where wheel fasteners are hammered home with power wrenches. Warren Anderson Sedona,AZ [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/