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What kind of gear oil does a 1997 dodge 1500 need?

A 1997 Dodge 1500's required gear oil depends on what type of axle(s) it has. You'll need to check your owner's manual or the sticker on the differential to determine the correct type. However, it's *highly likely* it uses either:

* 75W-90: This is a common viscosity for rear differentials in trucks of that era. It might specify an API GL-5 rating.

* 75W-140: If you live in a very hot climate or tow heavy loads regularly, a 75W-140 might be specified. Again, likely with an API GL-5 rating.

Crucially: The owner's manual or the sticker on the differential will specify the *correct type*. Don't rely solely on this information; consult your vehicle's documentation. Using the incorrect gear oil can severely damage your differential.

The API GL-5 rating is important because it indicates the additive package suitable for hypoid gears, which are commonly found in truck axles. Using the wrong additive package can lead to premature wear.