Hydraulic tilt trim fluid

[rajawolf]

Mariner around 1983 - 85....external pump in boat..manual says to use a brand name 10w-30 or a 10w-40 automotive oil...the oil in mine looks more like power steering fluid or auto trans fluid red in colour like wine....what do i use? as the manual has confused me.<br /><br />thanxs

 

[Trent]

Re: Hydraulic tilt trim fluid

Use Dextron III transmission fluid.

 

[rajawolf]

Re: Hydraulic tilt trim fluid

Thank you Trent for the reply.<br /><br />Cheers mate<br />Tony

 

[Ben Konopacky]

Re: Hydraulic tilt trim fluid

TRENT ; WHY Dextron III ? If manual reads 10W-30/40 automotive oil. Am I missing something ???

 

[Barnacle_Bill]

Re: Hydraulic tilt trim fluid

My 83 150 merc calls for 30W oil.

 

[TLL]

Re: Hydraulic tilt trim fluid

Since you have a remote mounted pump,10-30,10-40, or 30W are all acceptable oils for your TNT unit. Someone put the wrong fluid in. It likely won't hurt anyting, but eventually could cause leaks.<br />TNT Units mounted between the transom brackets with integral pumps use Dextron/Mercon ATF.<br /><br />Todd

 

[KCLOST]

Re: Hydraulic tilt trim fluid

Yep 30W fluid is what mine had in it...

 

[ZmOz]

Re: Hydraulic tilt trim fluid

If yours is already red somebody else probably already used transmission fluid. Does it smell like transmission fluid? If that's what is already in there, then you should continue using it. Mixing ATF and oil probably wouldn't be very good.