Thanks for the info. But will the engine go past 220F degrees (my normal upper range temperature that I've always tried to maintain), or even get to my 240F shut-down temp that I never exceed, even in emergency situations?

I'm cautious about over-heating the X5, so I don't want to chance it, even for a moment. That's why I installed a 3000 cfm fan in it, as the first mod I'd do, before I drove it over 10 miles from home. I've set my electric fan to maintain 190F +/- on the X5, and that was true for the other T-stat settings on my other vehicles, if I modified them from factory settings. Race car & towing vehicles usually got 160F T-stats, and their electric fans came on at that temperature, just to be safe (mostly used in hot weather in Texas).

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01 BMW X5 E53,3.0i-5L40E, 7/13/01
topas-blau,Leder-grau,"resto-project car"

Here:
14 Lexus ES350,3.5L-U660E
09 HHR Panel,2.2L-4T45E
04 Chevy 2500HD,6.0L-4L80E
98 GMC Sierra 1500,5.7L-4L60E

Gone:
66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake
08 Cobalt Coupe,2.2L-4T45E
69 & 75 C10s,350c.i.-TH350
86 S10,2.8L-700R4
73 Volvo 142,2.0L-MT4
72 & 73 VW SuperBeetles,1.6l-MT4
64 VW,1.2l-MT4
67 Dodge Monaco 500 2dr ht.,383c.i.-A727
56 Chevy 210 4dr,265c.i.-PGlide