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1993 Cadillac STS 4.6 northstar coolant tempeature?

The ideal operating temperature for a 1993 Cadillac STS 4.6 Northstar engine is between 195-220°F (90-104°C). However, fluctuations within a reasonable range are normal, particularly depending on ambient temperature and driving conditions. If the temperature consistently runs outside this range, especially significantly higher, it indicates a potential problem requiring investigation.