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The 2007 Chevy Tahoe uses Orange 50/50 coolant. Regular spark plugs should be changed at 100,000 miles, but copper ones need replacement every 30,000 miles. The air filter should be swapped out every 15,000 to 30,000 miles, while the coolant needs renewal every 60,000 miles. Various engine issues may occur, such as loose gaskets needing tightening, spark plug dislodgement causing problems, and overheating leading to serious consequences like fires and explosions. Keep an eye out for excessive oil consumption, which may necessitate more frequent oil changes, and promptly address any oil leaks.
The Peak OET antifreeze/engine coolant (part number NAO0B3) is a suitable choice for the 2007 Chevrolet Tahoe.
I would say: Dexcool Coolant - a type of coolant for vehicles.