Trim Pump Fluid Advice

[James Thompson]

I just woke up my 89 Mercury 150 from it's winter sleep yesterday. It was a glorious cloud of Seafoam blue smoke that filled the yard I'll be doing all the usual maintenance for the the season but was wondering if I should try to change the trim pump fluid. Ive had the engine for a few years now and have never had a problem or leak, it's the three ram style. I'm kind of a if it aint broke don't fix it kind of guy. But if I should any tips or techniques would be helpful and also suggestions for type and brand of fluid. The wife and i were taking the Checkmate out this weekend but typical Outerbanks weather, it went from 70* to 50* overnight.

[SS Minnow]

If it is the original fluid from 1989, I would change it. If unsure how old it is, what does it look like? I would probably change it if unknown.

It may be just me, but I change those things every so often, depending on use. For what it costs and the time it takes, I feel better knowing that I am running clean fluids.

[Dave Strong]

ATF

Dave

[Merc 2.5]

I agree on the atf fluid. Seems to run a bit faster than oil also

[rgsauger]

Type F or Dex Merc?

[Dave Strong]

Type F or Dex Merc?

Don't matter, I use full syn for our cold spring and fall mornings.

Dave

[rgsauger]

Thanks Dave