The operation of water technology is associated with extreme loads on the units of the units, especially given the constant contact with water. The right Ravenol lubricant for outboard motors can dramatically change the life of your power unit. Unlike automotive analogues, marine lubricants must have specific emulsification properties and the highest adhesion to metal.
Choice lubricant Owners often face a dilemma of whether to use universal products or specialized chemicals from a German brand. Statistics on gearbox breakdowns show that most problems arise precisely from water intake and loss of oil lubricating properties.
In this article, we will discuss in detail the product line RAVENOL MarineSo you can make an informed decision, and you'll know why. lubricant's ability to repel water while maintaining viscosity It's a key factor in the survival of the motor in a salty environment, and deep immersion in the chemical composition will help avoid costly repairs in the midst of navigation.
Why the water environment requires special lubricants
Water is metal-aggressive, especially when combined with high temperatures and mechanical friction. Conventional lubricant can quickly wash out or turn into an emulsion, no longer performing its protective function. Ravenol lubricant for outboard motors is designed to address these harsh operating conditions.
The key difference is the presence of special additives that prevent corrosion even with microscopic damage to the osteoils. Hydrophobic properties This material allows it to displace moisture from the friction contact pairs, which is critical for submerged units.
- 🌊 High resistance to washing out of water of any salinity.
- 🛡️ Powerful anti-corrosion additives to protect non-ferrous metals.
- 🌡️ Stability of viscosity specifications at sharp temperature changes.
The use of inappropriate compositions often leads to the gear They start to work dry or low-efficiency, and it causes bullying and wear and tear of expensive parts, and investing in quality products pays off without having to open the lower unit every two seasons.
Ravenol Marine Gear Oil Review
Series Marine Gear Oil It is a synthetic oil specially designed for outboard gearboxes, which provide reliable protection against wear and corrosion, and is designed to work under high loads and in constant contact with water.
One of the main features is compatibility with seal and gland materials, which prevents them from swelling or drying out, which often happens with cheap analogues. RAVENOL Marine Gear Oil SAE 90 and SAE 140 These are the most popular options for different climate zones.
The secret of the durability of the gearbox
Ravenol oils are based on a high-quality base that does not oxidize when it comes into contact with air entering the gearbox through the sapun, which prevents the formation of acids that corrode the metal from the inside.
When choosing viscosity, you need to consider the recommendations of the engine manufacturer: too thick oil in cold climates can cause overheating at the start, and too liquid – will not create a protective film in the summer. Optimal balance ensures the proper operation of all transmission nodes.
The oil change in the gearbox should be carried out at least once a season or every 100 motor hours, regardless of the visual purity of the used composition.
Protection of external nodes: lithium and molybdenum lubricants
Plastic lubricants are required to service external elements such as gas control thrusts, rotary mechanisms and screw slides. Lithium complexes Molybdenum disulfide (MoS2) is ideal for this purpose, and they create a strong layer that can withstand shock loads.
Ravenol lubricant with MoS2 penetrates the metal's microcracks, providing long-term protection, especially for boats that are often used in salt water. Salt is a powerful catalyst for corrosion, and without protection, knots can become sour in one season.
The application of the composition should be thorough, with full coverage of the working surfaces. You should not save material, since its excess is better than lack. High adhesion It allows the layer to hold even at high speeds of rotation of the screw.
- 🔧 Ideal for screw screw joints.
- ⚓ Protects the steering joints and cables.
- 🚫 Prevents the attachment of bolts and nuts to the body.
Anticorrosion treatment and conservation
Winter storage is a critical time for an outboard motor, and the moisture left inside can cause irreparable damage, and Ravenol's special sprays and preservatives create a thin film that blocks oxygen and water from accessing metal.
Not only the outer surfaces, but also the inner cavities of the carburetor or intake manifold are subject to treatment. Preservation properties These materials allow you to leave your equipment unmaintained for several months without the risk of rust, which is especially important for owners who clean boats in unheated spaces.
⚠️ Attention: Before applying the preservative, be sure to remove the remnants of the old lubricant and dirt, otherwise the protective layer will lie unevenly and will not be effective.
Use of use RAVENOL Haftschmier-Spray or similar products of the brand ensure that the engine starts from the first time in the spring, the film is not washed away with condensation and is held until the first start, when it is evenly distributed throughout the nodes or is replaced by working oil.
Technology of oil replacement in the gearbox
The process of replacing the transmission oil requires carefulness and a certain sequence of actions. A violation of the technology can lead to the entry of air or water into the system. First, you need to warm up the engine so that the oil becomes more fluid.
Then the motor is placed upright, the bottom drain plug is unscrewed, and the workflow drains into the prepared container. It's important to pay attention to the color and presence of metal shavings on the cork magnet. silver-paste Large pieces of metal are a sign of serious problems.
☑️ Oil-replacement algorithm
The new oil is pumped from the bottom up to avoid air traffic jams, using a special syringe or pump that comes with a canister, and when the oil comes out of the top hole, the top stopper quickly swirls, then the bottom one.
The moment of tightening of the plugs must meet the specification, so as not to break the thread in the aluminum case. Copper or aluminum washers It is recommended to change the oil every time you change the cork, which ensures that the connection is leaky.
Comparative specifications of Ravenol Products
For convenience of choice, we will present the main specifications of the popular products of the line: different types of motors and operating conditions require an individual approach to the choice of lubricants.
| Product | Type of base | Principal application | Temperature conditions |
|---|---|---|---|
| Marine Gear Oil 90 | Mineral | Low power gearboxes | up to +40°C |
| Marine Gear Oil 140 | Synthetics | Powerful engines, hot climate | up to +50°C |
| Marine Grease Li | lithium | Bearings, slats | -30°C... +120°C |
| MoS2 Anti-Friction | Molybdenum disulfide | High loads, blows. | -40°C... +150°C |
From the table, we can conclude that today's four-stroke motors prefer synthetic versions, which foam less and remove heat better. Mineral oils It is acceptable in older two-stroke models with a less stressful mode of operation.
Frequent service errors and their consequences
Inexperienced owners often make mistakes that negate the effectiveness of even the most expensive lubricants. Mixing oils of different types and brands can lead to a chemical reaction and precipitation. This sludge clogs the lubrication channels and disables the nodes.
Another common mistake is using automotive lithium lubricants for water applications, which are not water resistant and quickly washed out, leaving the knot unprotected after a couple of weeks.
⚠️ Attention: Never fill the gearbox with oil "on the eye." Lack of level will lead to the upper gears working without lubrication, since the spraying comes from the screw of the worm gear.
Ignoring replacement timing is also fatal, and over time, additives degrade, and the oil loses its properties, turning into an aggressive environment. Regular TO The long life of your outboard motor.
Keep checks and labels from used oils. In case of warranty, the dealer may require proof of use of recommended consumables.
FAQ: Frequently asked questions
Can Ravenol oil be mixed with other brands?
It is highly recommended not to mix oils from different manufacturers or even from different brands. The chemical compositions of additive packages can conflict, resulting in loss of lubricating properties and the formation of sediment. It is better to drain the old oil completely before pouring a new one.
How often should you change the oil in the gearbox?
The optimal rate of replacement is once a year before the start of the season or every 100 motor hours. If you notice that the butter has acquired the color "coffee with milk", this is a sign of water intake, and you need to replace immediately, regardless of the mileage.
Will Ravenol be suitable for Yamaha and Mercury engines?
Yes, Ravenol Marine products are fully compliant with the NMMA TC-W3 specifications and the requirements of most engine manufacturers, including Yamaha, Mercury, Honda and Suzuki. They are versatile and suitable for any aqueous equipment.
What to do if there is a lot of chips on the cork magnet?
Fine magnetic dust (“silver”) is acceptable, but large metal fragments or shiny shavings indicate the destruction of gears or bearings. In this case, you need to defect the gearbox and replace damaged parts, a simple change of oil will not help.