Would it help to install an engine heater (not sure about the proper name), basically a fan heater that sits inside the engine bay keeping the engine and lubes lukewarm. It's very common here in Scandinavia, especially the cupe heaters (same fan but inside the car).

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BMW X5 E53, 4.8iS - 2005
Professional Stereo/Nav with DSP (modified BM54 module) - Converted to Eonon GA5166X with Reverse cam
4-Corner Air Suspension - Converted to BC Coilovers