Automotive Tools - Car & Fuel

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Select your vehicle to get the correct BCI group size for a replacement battery. Quick reference.

Automotive car battery finder group size

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Adjust recommended tire pressure for extra load or high speed. Simple reference chart.

Automotive guide PSI tire pressure

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Enter your car's make and model to find the minimum and maximum rotor thickness specs. Static lookup table. Local reference.

Automotive brake calculator car rotor

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Enter two tire sizes and see a side‑by‑side comparison of diameter, width, and speedometer error. Local math.

Automotive comparison size tire visualizer