What kind of oil goes in power trim?
Dextron ATF is a good substitute for outboard tilt and trim oil, especially since the tilt-trim unit is a hydraulic system. As a substitute, Penzoil company has a marine tilt-and-trim hydraulic fluid that can be used for power steering and tilt-and-trim systems.
What is the difference between trim and tilt?
The difference between tilt and trim on a boat is referencing the location of the outboard or the drive of the inboard. Trimming is used when underway and goes about 20 degrees of the way up and tilting is coming all the way up for storage.
What is hydraulic fluid made from?
mineral oil
Today most hydraulic fluids are based on mineral oil base stocks. Natural oils such as rapeseed (also called canola oil) are used as base stocks for fluids where biodegradability and renewable sources are considered important.
How do you fill a Mercruiser trim pump?
Turn the fill screw on the top-right side of the trim pump tank counterclockwise with a flathead screwdriver. Pour hydraulic fluid into the tank until the level reaches the “Full” line. Replace the fill screw. Disconnect the leftmost (Up) line from the trim cylinder with an adjustable wrench.
Can I use regular gear oil in my lower unit?
Any gear oil that has a “GL-5 or GL5” rating is suitable for outboard lower units. That rating means that it will not foam if it comes in contact with water.
What kind of oil does a MerCruiser trim pump use?
Do not use automatic transmission fluid (ATF) for Mercruiser trim pumps, because the material used for the seals on its trim pump system is not compatible with either ATF or brake fluid. In the 1970s, 30 weight nondetergent motor oil was used as a substitute for outboard motor tilt-and-trim oil.
What kind of Oil can I use for outboard trim?
A substitute for outboard tilt-trim oil is automotive oil with SAE 10W30 specification. For example, it is recommended that you use SAE 10W30 oil in older Mercruiser brand trim pumps.
What kind of oil to use for tilt trim?
For this reason, marine manufacturers produce manuals for owners of outboard motors which recommend specific oil types — automotive oil with SAE 30 or SAE 10W30 specification, transmission fluid type F, Dextron Automatic Transmission Fluid (ATF) or power tilt trim fluid by OMC company.
What kind of oil does a marine engine need?
Outboard tilt-trim oil provides rust protection for engines in the marine industry. For long periods of time, marine engines function under high loads and rotations per minute (RPMs), which causes automotive oils to break down and lose viscosity or ease of flow.