I have a trim tab system on my 28ft Chris Craft. I just purchased the boat and the system is low on fluid. I was wondering what kind of fluid I can put in the system to fill it. I've looked around but haven't found a specific product called trim tab fluid.

Please help....

Sincerely,
James

Mine uses Automatic Transmission fluid(Bennett system)

If you have K-planes, the pumps are similar to the power trim pumps and they want engine oil, like 10-30.