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The 2003 Ford Ranger uses green 50/50 antifreeze, which is crucial for engine health. Potential issues include spark plugs popping off, loose gaskets needing tightening, and the engine overheating. Overheating can be a serious problem, leading to car fires and possible explosions. Excessive oil use may require prompt oil changes. It is recommended to replace the air filter every 15,000 to 30,000 miles, and the coolant every 60,000 miles. Spark plugs should be changed every 100,000 miles, except for copper ones which require replacement every 30,000 miles.
It doesn't make a difference whether it's yellow or green in color.
The 2003 Ford Ranger requires a mixture of eco-friendly 50/50 coolant and antifreeze for its engine.