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Mercruiser power trim oil

baba_bluey

Regular Contributor
"What up fellas. I have a 1980

"What up fellas. I have a 1980 Mercruiser 470 I/O. Had to replace trim cylinders. What type of fluid should i use? Someone told me to use ATF fluid, but manual says: 10w/30 or 10w/40."
 
"Ayuh,...

It;s a pretty sim


"Ayuh,...

It;s a pretty simple Hyd. system,...
It'll work with Any light oil...

ATF is what I use,... Motor oil will also work,..
It's your choice..."
 
Bondo et al:

After 21 years


Bondo et al:

After 21 years is there a problem if I just empty the reservior to switch from PS/trim oil to ATF? Or do I need to flush the lines and cylinders? Which ATF?
 
"Nope,... No problem Guy... Yo

"Nope,... No problem Guy... You don't even have to drain it if you don't want too...

All of these oils will mix Just Fine...

I've actually got Equipment Hyd. oil in mine right now...
Only because that's what I had close by...
Btw,...
Any AFT will do...Cheaper the Better..."
 
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