Engine type that uses a reservoir of oil that is constantly re-used to lubricate the engine Periodic oil changes are necessary with this type of engine. __ B This is a required question

## Step 1<br />The problem is asking us to identify the type of engine that uses a reservoir of oil that is constantly reused to lubricate the engine. This type of engine requires periodic oil changes.<br /><br />## Step 2<br />The engine described in the problem is a wet or splash lubrication engine. In this type of engine, oil is sprayed directly onto the moving parts from a nozzle. The oil then drips off the parts into a sump, where it is reheated and recirculated.<br /><br />## Step 3<br />This type of lubrication system requires regular oil changes to ensure the oil remains clean and effective.