RE: Wood Deck Care and Maintenance
Probably not the best solution, but it seems to work.
On my old F175 and F147, (now a F160), the deck / wood showed signs of very slight water penetration (a few centimeters of discoloring by small cracks).
I just dabbed small amounts of polyurethane on the spots, which resealed the cracks and stopped the spread of the water / discoloration. The color of the polyurethane didn't match the wood, so it wasn't a perfect solution, but it only took a few minutes to do the job.