What oil goes in outboard gearbox?
Marine Gear Oil 75W-90 is designed to be used in outboard and stern drive gear cases where the manufacturer recommends a SAE 75W-90 gear case oil. It can be used where an API GL-5 SAE 80W-90 or SAE 90 is recommended.
What type of oil goes in a Mercury lower unit?
Mercury Premium SAE 80W90 Gear Lube is recommended for lower units for outboards below 75 horsepower. Mercury Premium SAE 80W90 Gear Lube should not be mixed with Mercury High-Performance SAE 90 Gear Lube.
Is Marine gear oil the same as regular gear oil?
Marine gear lube, unlike automotive gear lube, is formulated to emulsify water. This serves two purposes: It provides consistent lubrication, keeping water away from moving parts.
What color is outboard gear oil?
Both the HD and Regular Gear Oil are a Yellow or Brownish color. A rule of thumb for the models that require the HD Gear Oil is the oil filter. If the engine uses a N26-13440-02-00 oil filter, or a N26 for short. Then that engine requires the HD Gear Oil, which is to the left and is also a brownish or yellowish color.
How often should you change the lower unit oil?
every 100 hours
Most sterndrive and outboard manufacturers advise you to change the gearcase oil in your lower unit every 100 hours or once a year (whichever comes first). Clean oil is critical for protecting the heavily loaded gears in your lower unit and preventing expensive damage.
Can you fill lower unit oil from top?
This. Adding from the top, with the bottom buttoned up so oil doesn’t drain right back out, creates an air pocket. It is a pain filling from the bottom though… Yep, if there isn’t oil in the LU, then there is air.
What Colour should outboard gear oil be?
Brand new gear oil should be a shade of blue, green, brown, or yellow, depending on the brand. Used gear oil should be a black/dark variation of the brand new color.
How does a outboard gearbox work?
How It Works: The gearcase takes the vertical rotational power from the driveshaft and converts it to horizontal rotational power along the prop shaft and to the propeller. The gearbox also dictates which direction the prop shaft and propeller rotate in. The drive shaft enters the gearbox and ends at a pinion gear.
What oil is used in a Yamaha outboard gearbox?
Use a quality, marine-based formula, like Yamalube® Marine Gearcase Lube. It can perform all of these required protection and lubrication duties, even with a full 10% of water present.
How often should you change oil in a Yamaha 4 stroke outboard?
How Often Should You Change Oil In A 4 Stroke Outboard? Oil and oil filter changes are required every 100 hours or every year for most four-stroke outboards. Changing the oil as part of preparing for off-season storage is recommended by professional technicians if you plan to put your boat up for the winter.