Cleaning out my grandma's house as she's been moved into nursing home facility. Found this stuff, figured I'd post it up. Might be interesting to see who recognizes any of it and maybe provide some years...just for curiosity. Only date I've seen so far is the Preston that says "results of 1985 survey" but as far as I know they could still be using that. Then there's the mystery white bottle. Coolant additive bottles are full but no seal. White bottle full with seal. both 2 cycle oils are full, unopened. National Dex II full and sealed.