05 XJR - Random coolant smell coming from right front of engine bay
#21
Don:
I do appreciate your input on antifreeze, a few clarifications. Dex-Cool is a patented GM formulation and yes is is utilized by many manufacturers. Prestone as many antifreeze manufacturers use the OAT technology to achieve long life drain intervals. I am sure most of us can recall the 50,000 mile drain intervals from the past, not the 150,000 mile as is typical today, again with the OAT technology. I suspect all new cars today specify OAT coolants independent of color.
Antifreeze color does not indicate the stabilizer technology only the color dye used, and yes Dex-Cool has a patented dye to go with the formulation.
RyeJag
I do appreciate your input on antifreeze, a few clarifications. Dex-Cool is a patented GM formulation and yes is is utilized by many manufacturers. Prestone as many antifreeze manufacturers use the OAT technology to achieve long life drain intervals. I am sure most of us can recall the 50,000 mile drain intervals from the past, not the 150,000 mile as is typical today, again with the OAT technology. I suspect all new cars today specify OAT coolants independent of color.
Antifreeze color does not indicate the stabilizer technology only the color dye used, and yes Dex-Cool has a patented dye to go with the formulation.
RyeJag
#22
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I think the main criterion for X350 owners is that the coolant must meet the Ford WSS-M97B44-D specification and that it is inadvisable to mix coolants from different manufacturers due to the possibility of interactions between different corrosion inhibitors. So if you use something other than orange-dyed GM brand Dex-Cool, you should probably do a complete and thorough system flush to remove all traces of old coolant before using a different brand.
Cheers,
Don
Last edited by Don B; 04-24-2017 at 10:57 PM.