What is this fluid on 2003 toyota prius?

40

Asked by Mar 26, 2015 at 01:34 PM about the 2003 Toyota Prius

Question type: Maintenance & Repair

I have a 2003 toyota prius, there is a
fluid container located next to hybrid
battery area under hood, trying to
figure out what it is for. It is below the
LOW level. The cap says DENSO on
it

11 Answers

148,385

Does youe under hood even look like this, and what does it say on the cap? Click image

1 out of 1 people think this is helpful.
40

Yes that is what it looks like

1 out of 1 people think this is helpful.
40

It says DENSO on cap, and don't open when hot

1 out of 1 people think this is helpful.
148,385

I thought I could find something on a Prius Forum. No luck..sorry

40

Ok, it's just seems weird for it to be an overflow tank since it had a FULL line and LOW line marked on the side... The engine coolant container is over on the left hand side under hood.

1 out of 1 people think this is helpful.
148,385

That's why I took if off, had second thoughts. But does it say anything else on cap. Like ":use only XXX fluid "?

40

No that's all it says on cap

1 out of 1 people think this is helpful.
148,385

Well, you can give me a big 'thanks for nothing'...I tried

Best Answer
40

Thanks for trying!!

Its called INVERTER COOLANT FLUID!! Must be changed every 120K miles. It has to do with your car's A/C and heating and is related to the water pump.

40

Thanks!

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