[soup1207]

sorry to ask so much, please forgive and answer me.

What is the signal of engine overheat? is it over half of the engine temperature indicator? I hope to know it to slower down the speed if it happen

In what condition I have to turn off the over-drive function please?

Is the supercharge oil a kind of engine oil? I guess not and want to make sure...

I just bought my 1995 previa. The second hand agent said his friend(who's a car repairer) has added oil and fluid for me. I suspect if he added the s/c oil too.

Is there any risk the repairer added some non s/c oil into the s/c oil tank?
Where can I check the level of the s/c oil?

Thank you very much.