7 FAQs about motor oil for your boat

Engine oil is an essential component for the proper functioning of marine engines. Choosing the right engine oil and keeping it in optimal conditions is key to prolonging engine life and avoiding mechanical failures. 

In this article, we resolve some of the most common doubts about engine oil in the marine field.

1. What is engine oil used for?

Engine oil lubricates internal engine parts, reducing friction and preventing premature wear. It also helps dissipate heat, keep the engine clean and protect against corrosion.

2. What is the best motor oil additive?

Additives improve the properties of the oil and may include detergents, antioxidants and viscosity improvers. The best choice depends on the type of engine and its conditions of use. In marine engines, additives that protect against moisture and deposit formation are recommended.

3. At what level should the engine oil be?

The oil level should be within the minimum and maximum marks on the dipstick. A low level can cause excessive friction and a high level can cause foaming and loss of lubrication. It is recommended to check the level periodically and before each trip out to sea.

4. At what temperature does engine oil work?

The oil in a marine engine typically operates between 85°C and 110°C. Maintaining it in this range is crucial for optimum performance. Higher temperatures can degrade the oil and reduce its effectiveness.

5. At what temperature does engine oil burn?

The flash point of motor oil varies according to its type and composition, but generally ranges from 200°C to 250°C. It is important to avoid leaks and oil accumulations in hot areas of the engine to prevent fires.

6. At how many degrees does motor oil freeze?

The freezing point depends on the viscosity and composition of the oil. Mineral oils can start to thicken at -20°C, while synthetic oils resist temperatures down to -40°C. In cold environments, it is advisable to use oils with good fluidity at low temperatures.

7. When should I change the engine oil in my boat?

The frequency of oil changes varies according to the type of engine and its use. In general, it is recommended to change the oil every 100 hours of engine operation or at least once a year. It is always best to follow the manufacturer’s instructions.

Valvoline and Cummins

Valvoline is one of the leading brands in lubricants and offers high quality products designed specifically for Cummins marine engines and diesel engines. Its Premium Blue line, officially recommended by Cummins, is one of the best choices for diesel engines, providing excellent thermal stability and friction protection.

The best oils and additives for Cummins engines

Cummins engines require high-quality oils that meet brand specifications to ensure optimum performance and extended service life. Synthetic and semi-synthetic oils with high thermal resistance and oxidation protection are ideal for these engines. 

Among the best options is Valvoline Premium Blue oil: Developed in collaboration with Cummins, it is one of the best oils for high-performance diesel engines. It offers excellent wear protection and high thermal stability.

In our online store you will find a wide variety of the best brands of marine engine oils and Cummins engines, such as Valvoline, Fleetguard, Matrax, Tetralube, and more. Always ensuring the best performance and protection for your boat or heavy equipment. 

We also have a large selection of oils and additives on offer.

If you need advice on which motor oil or additive is best suited for your boat, don’t hesitate to contact us – we’ll be happy to help!