Synthetic trim fluid?

[ZmOz]

I think I want to try some synthetic oil in the trim for my inline 6 this year. (mods please don't move this, trim systems are all pretty much the same between brands) First, does anyone think it would be a bad idea to switch to synthetic in a 30 year old trim system? Second, I've heard of using both 30 weight motor oil and Dextron III ATF in the trim system...which would be better?

 

[ZmOz]

Re: Synthetic trim fluid?

^

 

[ZmOz]

Re: Synthetic trim fluid?

Nobody knows anything about trim fluid??

 

[ZmOz]

Re: Synthetic trim fluid?

Still wondering...

 

[Terry H]

Re: Synthetic trim fluid?

there's a dude around here that knows a thing or two about oils and I am certainly not he...but given the three choices you mention, I would use the ATF...that's what I used on my 25 year old 'rude a couple of years ago with no ill effects...just a Thought

 

[Elmer Fudge]

Re: Synthetic trim fluid?

Yeah! I've heard of that guy who knows two things about oil,maybe if i yell he'll hear me,<br />HEY LUBY WHERE YOU AT! <br /><br />I changed my trim fluid a few weekends ago,i used Dextron III ATF, because thats what the previous owner of my motor used, it works just fine.

 

[Freezebear]

Re: Synthetic trim fluid?

My 92 Johnson calls for power steering fluid and not to use motor oils or transmission fluid. I changed it to the Valvoline synthetic last year and it works fine. No problems at all with the hydraulic system, just the electric motor crapped out from worn out brushes.

 

[Link]

Re: Synthetic trim fluid?

^^bump^^ Lube's seems to be hard of hearing this weekend ... With the weather we had over the weekend I'd bet he was out boating