SAE 30 is a type of motor oil that is commonly used in small gasoline engines, such as those found in lawnmowers. It is a straight-weight oil, which means that it does not contain any additives. This makes it a good choice for older engines that may not be compatible with newer, synthetic oils.
SAE 30 oil has a viscosity rating of 30, which means that it is a relatively thick oil. This makes it a good choice for use in warm weather, as it will help to protect the engine from overheating. However, SAE 30 oil can be too thick for use in cold weather, as it can make it difficult for the engine to start.
If you are not sure which type of oil to use in your lawnmower, you should consult the owner's manual. The owner's manual will specify the type and weight of oil that is recommended for your particular engine.
