Outboard leak identification

[Stihl029]

I have a 2011 90 4 stroke Merc on my tracker boat. This morning I went out and there's fluid on the ground under the motor. Can anyone identify the fluid and where it may be coming from? Is it something of concern, or is it an overflow because of the heat of the day? It looks and smells like hydraulic fluid, and the only place on the drive I can see where it may have come from is the water intake fins. I do lower the unit onto a support bracket to the trailer. I was wondering if I had put to much pressure on it maybe? Please, I am not a mechanic, nor do I know the terminology. I have posted pics. Thank you if you can help.

 

[johnnygjr]

The oil in lower units is usually dark blueish. Check hydraulic fluid in trim reservoir,the system that raises and lowers engine. That fluid is usually reddish in color.Check engine crankcase oil next,dip stick usually has yellow handle

 

[Stihl029]

Thank you for replying. The color of this fluid seems to be greenish. I'm hoping that it's just part of the trim reservoir. I'm thinking that being as it didn't happen until the second day after using the boat that may be I put too much pressure on the unit up against the brace between the lower unit and the trailer. Will be checking all levels as you suggested just in case thank you.

The oil in lower units is usually dark blueish. Check hydraulic fluid in trim reservoir,the system that raises and lowers engine. That fluid is usually reddish in color.Check engine crankcase oil next,dip stick usually has yellow handle