These we are used to obtaining regularly or topping off/adding regularly:
1) Oil
2) Gas
3) Windshield washer fluid
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We think about this only if the air conditioning isn’t cooling enough:
4) Air conditioner coolant
Used to be called Freon, now is called one of these:
Puron®
SUVA 410A®
GENETRON AZ-20®
Forane® 410A
—–
These next fluids should be visually checked a few times per year (but typically don’t need any topping off):
5) Coolant (radiator fluid)
6) Power steering fluid
7) Power brake fluid
8) Transmission fluid
9) Differential case fluid (can’t visually check though)
Charles Tadros, M.D.
January 4, 2022
Saint Louis, Missouri