Table of Contents
- 1 How much gear oil does a lower unit hold?
- 2 How much oil does a Johnson outboard take?
- 3 Can you overfill lower unit oil?
- 4 How much oil does a 2-stroke outboard take?
- 5 What is the difference between lower unit oil and gear oil?
- 6 Is SAE 90 the same as 80W 90?
- 7 What kind of lubricant should I use on my gearbox?
- 8 Can you use AMSOIL gear oil in an outboard?
How much gear oil does a lower unit hold?
STEP
| Lower Unit Oil Needed by Model | |
|---|---|
| Model | Approximate Fluid Ounces Required |
| 25 (4-stroke) | 9.5 fl oz |
| 30 (2-stroke) | 14.5 fl oz |
| 30 (4-stroke) | 9.5 fl oz |
How much oil does a Johnson outboard take?
The maximum amount of oil that meets this standard is 40:1, or 3.2 ounces of oil per gallon of gasoline. 50:1, or 50 parts gasoline to 1 part 2-cycle oil is 2.6 ounces of oil per gallon of gasoline.
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.
Can I use regular gear oil in my lower unit?
So, can you use any old gear lube in your marine lower unit? If you want the best protection possible, and want your lower unit to last as long as your boat, then the answer is no. Consult your engine’s manual and look for the proper marine gear lube for your application.
Can you overfill lower unit oil?
To answer, yes you can. I have seen guys that will pump it till the oil comes out the top which is correct, but will then put the top screw in & then give a few more pumps for “good measure”. This usually causes overfilling as well as a slight pressurizing if they get that bottom screw in real fast.
How much oil does a 2-stroke outboard take?
Use a 32:1 gasoline to oil ratio. One gallon of gasoline combined with 4 oz of two-cycle engine oil.
Is lower unit oil the same as gear oil?
Lower units contain hypoid gears (think ring and pinion, like a car differential) so they demand extreme pressure additives. The marine gear oil you choose will depend on the size of your marine engine. Consult your engine’s manual and look for the proper marine gear lube for your application.
What kind of oil does a Johnson outboard take?
XD50™ SYNTHETIC BLEND 2-STROKE OUTBOARD OIL Use XD50 for reduced smoke, reduced maintenance and increased reliability in any Evinrude and Johnson outboard. XD50 is suitable for any direct injection, oil injection or pre-mixed outboard that specifies a TC-W3 oil.
What is the difference between lower unit oil and gear oil?
Is SAE 90 the same as 80W 90?
Can I use SAE 80W-90 instead of SAE 90w? Yes it is the same… close enough anyway. SAE 90 gear oil is equivalent to 50wt engine oil (SAE 80 = 30wt), so you could always dump that in instead if you want.
Why do you fill lower unit oil from the bottom?
Air…….it will take you forever to fill from the top due to all of the air that must be vented out in the process. When you fill from the bottom, with the top plug out, you force the air out as you force the lube in.
What kind of outboard oil for Johnson 70?
What type of outboard oil and lower unit grease/oil for johnson 70? Just bought the boat so I would like to change both. It is a 1991 johnson 70 oil injected of course. I would also like to change the lower unit oil.
What kind of lubricant should I use on my gearbox?
Further, without a coating of oil for even a short time, “flash rusting” of internal parts of the gearbox can take place. Third, to properly flush the gearbox, use one of the new gear lubricants, or a light viscosity of R&O compressor/turbine oil, filling to one-third the recommended operating oil level.
Can you use AMSOIL gear oil in an outboard?
Be carefull using a GL5 in a lower unit. I believe most call for GL4. Unless your unit specifically calls for a GL5 I would stay away. This is the reason that Amsoil specifically makes a marine gear oil. neilw, A marine specific lower unit gear lubricant should only be used in an outboard.
What kind of outboard oil and lower unit grease?
It is a 1991 johnson 70 oil injected of course. I would also like to change the lower unit oil. What kind is best and a link w/ proper procedures would be great. thanks in advance