What type of coolant to use on BMW x5?

For a BMW X5, it's recommended to use a high-quality coolant that meets BMW's specifications, specifically the BMW Antifreeze/Coolant (usually blue or green in color). This is typically a mixture of ethylene glycol and water in a 50:50 ratio. Always check your owner’s manual for specific coolant requirements and ensure you avoid using non-BMW approved coolants to maintain optimal engine performance and prevent potential damage.