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What type fluid can you use for a 1954 powerglide automatic transmission?

A 1954 Powerglide transmission uses Type A ATF (Automatic Transmission Fluid). However, it's crucial to note that modern Type A ATF is not a direct replacement. The formulations have changed significantly over the years.

You should use a specific Type A ATF formulated for older transmissions or a high-quality Dexron I/II compatible fluid that's been explicitly recommended for use in early Powerglides. Consulting a reputable restoration parts supplier or a specialist in classic GM transmissions is highly recommended to ensure you use the correct fluid and avoid damaging your transmission. Simply using a readily available modern ATF could seriously harm the transmission.