Hydraulic reservoir

[Bruce Parker (RIP)]

Originally Posted by Richard Farrant

Assuming this is for hydraulic oil and not brake fluid. I would not use any coating in the tank for fear of particles getting into the hydraulic system.

It's a hydraulic clutch but the same as a brake fluid system. I assume the inside of a reservoir is uncoated steel (plastic in the modern era) which would require the vehicle to slosh it around the unfilled part at the top regularly preventing rust. Then we have our old beasts that don't run as often as they should which is why I wonder about a coating which the brake fluid won't dissolve.