Johnson Outboard Lower Unit Oil Type, Capacity & Change Cost

Johnson Outboard Lower Unit Oil Type, Capacity & Change Cost

Johnson Outboard Lower Unit Oil Type: Inspecting and maintaining the condition of your Johnson outboard is essential to maintaining its performance and longevity. A crucial aspect of maintaining your outboard is regularly changing the lower unit’s oil. 

This guide will provide the type of oil recommended capacity, filter, and the cost to change it to Johnson upper units on outboards. giving you the tools to ensure that your boat runs efficiently.

The oil type: Johnson outboards require premium marine gear oils of the highest quality specially designed for smaller units. They have exceptional viscosity and anti-wear characteristics to endure harsh marine conditions.

Capacity for Oil: The oil capacity of your Johnson outboard lower unit varies on the model you have selected. The typical range is between 12 to 24 ounces. Check the owner’s manual to determine the exact weight for your motor.

Oil Filter: Removing and replacing the oil filter in your lower unit is just as crucial as replacing the oil. The filter catches dirt and debris, protecting parts of the outboard’s internal components.

Johnson Outboard Lower Unit Oil Type

The kind of oil that you will apply to the Johnson lower unit for your outboard depends on the power of the engine. For motors on outboards with between 75 and 75 horsepower, it is possible to make use of SAE 80W-90 gear oils. 

For outboard motors with 75 horsepower or more, it is recommended to make use of SAE 85W-90 gear oils.

This table lists the recommended oils for Johnson outboard units that are lower:

HorsepowerRecommended Oil Type
Up to 75SAE 80W-90
75 and overSAE 85W-90

Johnson Outboard Lower Unit Oil Capacity

The capacity of oil in the oil capacity of a Johnson lower unit for outboards varies depending on how powerful the motor is. This table lists the recommended oil capacities of Johnson Outboard Lower Units:

HorsepowerRecommended Capacity of Oil (oz)
Up to 2512
From 115 to 15032
200 and over40

Johnson Outboard Lower Unit Oil Change

Changing the lower unit’s oil within the lower unit of your Johnson outboard motor can be an easy task that can be completed at your home. What you’ll need to complete:

Tools Needed

  • Johnson outboard lower unit oil
  • Oil drain pan
  • Hand pump or extractor of oil
  • Funnel
  • Set of sockets or wrenches
  • Clean cloths

Steps to Follow

  1. Begin by warming your outboard motor by running for a couple of minutes. This will help loosen up any dirt or other particles within the oil.
  2. Find the lower unit’s drain plug for oil at the lower part of the unit. Place the drain pan for oil beneath the plug.
  3. Take out the drain plug and let the oil be completely drained.
  4. After all the oil is gone Clean the drain plug with a clean rag. Then put it back in the unit below.
  5. Find the oil fill hole on the back from the unit’s lower side. Utilize either the pump hand or an oil extractor, to refill the unit with the suggested quantity of Johnson outboard lower unit oil. You may also employ a funnel to pour the oil into.
  6. After the lower unit is fully filled with oil, you can replace the fill hole with an oil plug and secure it.
  7. Lastly, clean the lower unit using the clean rag to eliminate any oil that has accumulated.

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Selecting the correct oil for the Johnson Outboard Lower Unit is a crucial choice that will be a major influence on the lifespan and performance that your engine. 

Considering factors such as operating conditions, the age of the motor, as well as manufacturer guidelines, you can select the right oil for your needs. You will get the best security and efficiency from the motor.

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FAQs – Johnson outboard lower unit oil type

What kind of oil do you put in a Johnson outboard?

For older Johnson/Evinrude outboards (1962-72) with electric shift, you’ll need Premium Type C Lube. Changing the Lower Unit Oil The lower drain/fill plug screw is usually located on the starboard side of the lower unit, beneath the “bullet-shaped” portion of the lower unit housing.

Are Johnson/Evinrude lower units interchangeable?

It is true that Johnson / Evinrude lower units can be interchanged however, you can’t rely on visual comparison alone. I want to share with you two things in this blog:

What type of lower-unit Lube should I use on my Boat?

Your Owner’s Manual will recommend the manufacturer’s proprietary lower unit lube and that is always a safe choice. We can recommend our West Marine and Pure Oceans brand Lower Unit lubes, which meet all engine manufacturer’s specifications and warranty requirements.

How do I change the lower unit oil on my motorhome?

Changing the lower unit oil. Snatch it away as the oil begins to slowly drip out. Then remove the upper vent plug screw, usually located above the cavitation plate on the starboard side of the lower unit, and the oil will gush rapidly out of the drain hole. Give the oil plenty of time to drain completely, ideally for an hour or more.

What type of lubricant should I use in my Johnson lower unit?

Johnson outboard lower units require a certain type of gear oil. Consult the owner’s guide or call a Johnson dealer to find out the right oil for your model. These merchants will be the ones with the most precise and recent information.

Can I use regular motor oils in my Johnson lower unit?

Regular motor oil is not recommended for the lower unit on a Johnson outboard. Lower units need a specialized gear oil that is designed to handle the operating conditions of an outboard and provides proper lubrication.