Transfer Case Oil To Use
Remove the oil pan from under your truck and dispose of oil in the OSHA-approved container.
Transfer case oil to use. 8172020 The owners manual states that the transfer case fluid and manual transmission fluid should be 80W90 GL4 gear oil. The main reason Toyota chose to update to the 75W transfer case fluid was to improve the vehicles efficiency. It removes heat and lubricates the internal parts in the transfer case keeping its gears cool and turning smoothly.
The main reason Toyota chose to update to the 75W transfer case fluid was to improve the vehicles efficiency. Replacing this fluid at appropriate intervals can help prevent premature wear and damage caused by contaminated or broken-down fluid. 842020 Toyota transfer case fluid part number 08885-81080 is a 75W viscosity fluid and does not specifically identify with any GL gear lube specification like the older recommended gear oils eg.
772015 Place an oil drain pan underneath the transfer case to catch the old fluid. So uncommon that the only 75w options available are the original OEM fluid and Ravenols SAE 75w manual transmission fluid. This video is applicable to Chevy Silverado and GMC Sierra models List of tools used.
12242018 Toyota specifies their Genuine Transfer gear oil SAE 75w or equivalent as a proper fluid for the transfer case. Saw somewhere that Mercon LV ATF is approved to be used in the transfer case. I have looked extensively and find that GL4 is really hard to come by.
For conventional transfer cases you will also require DEXRON II fluid for transmission. Lubricant fluid in the transfer case helps to keep its gears cool and turning smoothly. In all-wheel-drive vehicles the transfer case helps to shift power from one axle to another depending upon traction conditions.
Full-time systems use SAE 10W 30 or 10W 40 engine oil while the conventional transfer cases will require SAE 80W-90 or SAE 80W GL-5 gear lubricants. The transfer case of the Toyota FJ Cruiser in the photo for example takes only 15 quarts 14 liters of SAE 75W gear oil. With the top oil fill plug still out remove the bottom oil drain plug to drain the oil into an oil drain pan.
