Question about 1990 Toyota Corolla

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How do i add oil and water to a toyota corolla 1990

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Well, water or coolant should be added to the plastic overflow tank which will be labeled (usually on a black, round cap) as such. They usually are a yellowish or white plastic which is translucent. You'll identify it by words on the side that say "Full hot" and/or "full cold".

I believe on the early 90s corollas the radiator is a sealed unit, but if not look for an octagon shaped cap that says very clearly not to open when hot. Obviously, this means you'll want to make sure the vehicle has been shut off for at least half an hour or more (depending on how hot it runs.) before removing that cap and checking the level. I would recommend that you not add plain water alone. You should always add at least a 50/50 mix of water and coolant. You can readily find pre-mixed coolant at most auto stores and/or department stores.

As for oil, you will find a round cover, most likely with a gnurled grip, on a valve cover, or in front or behind the engine mounted to a tube about 1" to 1 1/2" in diamater. The cover will likely say "Motor Oil" on the top of it, and may tell you what viscosity of oil to use as well.

Posted on Feb 07, 2009

  • Randall LaClaire Feb 07, 2009

    Also, as a side note you should consider using distilled, desalinated (salt free) water when adding or mixing water and/or coolant. Most city water, or even well water, contains contaminants such as salt, minerals, chlorine etc. which can add to the amount of rusting and corrosion which builds up in the cooling system. This increases the need for regular flushing and cleaning, and can lead to clogging. Further, chlorine is not the greatest thing to be exposing gaskets and seals to, as it can cause plastics and rubber to break down over time. Most coolant manufacturers don't bother to mention this detail, since it reduces your need to buy their cleaning and flushing products ;)



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