It seems that the easiest way for most people is to use a squeeze bottle. Drain the Oil: Now remove the top drain plug; this will release the vacuum that exists and allow the oil to drain freely from the Mercury lower unit. 10W-30 Mineral 4-Stroke Marine Engine Oil provides outstanding lubricity for internal engine components to reduce wear, scuffing and scoring for improved long-term reliability, making it a good choice for Mercury and other brand four-stroke outboard engines. 25W-40 Mineral 4-Stroke Marine Engine Oil provides excellent resistance against wear and corrosion along with industry-leading shear strength and viscosity retention. Screw the pump adapter into the drain plug and with the one vent engine pump till you have oil coming out and then a little more to reduce the bubbles. 10W-30 Full Synthetic 4-Stroke Marine Engine Oil contains 45 percent more dispersants, 24 percent more detergents and 49 percent more anti-wear additives than the synthetic blend. 90 hp mercury outboard lower unit oil and natural. Changing the lower unit oil of a Mercury outboard provides the proper lubrication for the internal components of the motor, while removing normal shavings from the oil. 00 for the three of them. A marine specific lower unit gear lubricant should only be utilized in a Mercury outboard. Wear - tackifiers and extreme pressure additives improve oil film adhesion and protect against excessive wear. THanks if anyone reallly knows for sure:) No guessing. Also, be sure to consult your outboard motor's owner manual to verify the steps above are in agreement with the manufacturer's recommendation for changing lower unit oil. It outperforms automotive gear oil in marine applications by providing maximum protection against excessive wear in the presence of water and helps prevent corrosion and pitting. Developed to eliminate thermal breakdown under extreme rpm, temperatures and loads, it provides the best wear and corrosion prevention for any engine, especially those operating at maximum output and high temperatures for extended periods of time.
Use a big screwdriver to keep from dinging up the screw slots and get them tight using both hands. Mercury lower unit oil changes are an important part of maintaining an outboard motor. 90 hp mercury outboard lower unit oil 2021 mercury 115. Mercury 80W-90 Premium Gear Lube is recommended for gearcases for outboards below 75 horsepower. Marine engines frequently run for extended periods of time at high rpm or wide-open throttle, often in corrosive saltwater. Maintaining your Mercury outboard lower unit provides a peace of mind knowing that your boat's motor will function efficiently when out for a day on the water.
For use in all outboard lower units and jet pumps below 75 hp except outboards with electric shift gears. Premium 2-Stroke Engine Oil is formulated to meet the needs of low- to mid-horsepower two-stroke outboard engines under general marine operating conditions. Keep the bottle or tube in the bottom pug and reinstall the top plug. The additive in such oil is normally of a higher water demulsability and has corrosion protection. 25W-40 Synthetic Blend 4-Stroke Marine Engine Oil meets the stringent requirements of high-performance Mercury outboard models and other brand engines. Fishing line wound around the prop shaft of your outboard is a real drag. Mercury Marine 92-858058K01 (80W-90) Premium Gear Lube. 2 items Sort by Featured Price - Low to High Product Name Filter by Price $10. If not removed, this jumbled mess could destroy the seals that contain and protect the oil inside your gearcase. Mercury outboard lower unit oil type. In this guide, we'll take a closer look at the wide variety of oils and gear lubes offered in the Mercury Precision Lubricants product line to help you select the best choice for your engine or gearcase. Features: Water intrusion - advanced emulsifiers prevent foaming to protect gears if water enters gear housing. It reduces rust and corrosion of internal components and meets or exceeds all outboard and personal watercraft manufacturers' recommendations for use of TC-W2® and TC-W3® oils in premix and oil-injected two-stroke applications. 25W-50 Synthetic Blend 4-Stroke Marine Engine Oil is formulated with additives designed to maintain performance under high-heat and high-rpm conditions.
Excellent resistance to water and moisture. Not fixing this problem will result... 2000 90hp Mercury lower unit oil. They are not cheap at the dealer, I think they gouged me for $9. OptiMax Synthetic Blend two-stroke engine oil was developed to meet the needs of Mercury OptiMax® and direct fuel-injected (DFI) two-stroke outboard engines. Ensure that you have the washers (mine are blue) under the screws to seal the screws. Once all the oil has been completely drained, the lower unit will have to be re-filled.
Its clean-burning formula reduces carbon build-up in exhaust systems and provides superior lubrication in premix or oil-injected two-stroke applications. It is important to do this as quickly as you can to minimize the total amount of oil loss. NOTE: Mercury Premium SAE 80W90 Gear Lube should not be mixed with Mercury High-Performance SAE 90 Gear Lube. On the 6 cyl engines remove the vent plug at the top and drain on the bottom. West Marine has them as well as your local Merc dealer. On the 3 cyl engine like mine, there are 2 vent plugs on top. It protects anti-pollution systems, increases the life of diesel particulate filters (DPF) and provides outstanding wear and corrosion prevention to help extend engine life. Go to WW and as Chris and wired said buy a quart of Quicksilver/Mercury Premium LU oil in the quart in the package that has the pump. It contains extreme pressure synthetic additives to protect gears from metal-to-metal contact and provide excellent protection against corrosion and excessive wear. Excellent instructions. We recommend original manufacturer marine oil for best performance and longivity.
With a higher concentration marine additive package, Premium Plus 2-Stroke Marine Engine Oil Synthetic Blend is formulated for high-horsepower two-stroke outboards, including direct fuel-injected engines. Great protection of components from rust and corrosion in dry conditions and in moist conditions. This process can easily take between 5-10 minutes. It provides maximum protection for OptiMax and DFI engines, outperforming other oils by combining a modified base stock blend with a synthetic additive package that provides superior resistance to piston scuffing, minimizes carbon build-up and helps maintain engine top-end speed and acceleration.
There are various tools available in order to re-fill the oil, such as squeeze bottles and tubes. Tighten both the lower and upper drain plugs and wipe off any oil that may have fallen on to your lower unit. When not on the water, marine engines often sit in storage for long periods of disuse during the off-season. Thereafter you will need to locate and identify both the upper and lower Fill and Drain Plugs. Allow all of the oil to drain completely from the lower unit. Always ensure your oil has the following properties in order to function correctly: - Excellent seal compatibility.
5W-30 Full Synthetic Turbocharged Direct Injection Diesel Engine Oil resists thermal breakdown and oxidation under extreme conditions to optimize Turbocharged Direct Injection (TDI) diesel engine performance in marine applications.