I have flipped flopped between teak oil and varnish. Based on how things weathered, I settled on varnishing the door & dash trim and oiling the hatch rails on the bow and the teak inside the cabin. I got rid of all the teak where fish guts go....
Varnish on door & dash holds up for years but did not hold up out on the bow. Sanding and revarnishing is a pain so I powerwash & oil the slider rails every year. Inside the cuddy, oil lasts years.
don't use trans fluid. That's just stupid...
