That's maybe 1/2 a quart of oil. Did you change it when you bought the car?

Green coolant is not ideal. Not instant death, but not ideal. The best bet for coolant is Zerex G-05. You may have to ask for it at the local auto store. Some keep it "in the back".

That cable doesn't look like a factory piece I've ever seen.

As mentioned your vacuum system will need some help. Do your automatic door locks work? How about the climate control system?

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