3.6 liters
For my 2002 Echo it is 3.7 Liters with a filter change.
3.6 litres
3.5 Liters
No
manual recommends 5w and 10w
5 qtd
http://www.carspace.com/guides/Toyota-Echo-How-to-change-oil
if it is a four cylinder it is most likely 4.2 to 4.6 capacity.
6.5 qts
Check Oil Pressure Switch. It's about $60 at Toyota
You have to take out the engine to get to it.
If you still have the owner's manual for the 2004 echo there should be a specifications section that will tell you the oil capacity (drain and refill) with a filter change and without a filter change. For instance, I have a 2002 Toyota echo. On page 217 of my owner's manual it shows that the capacity with a filter change is 3.7 liters, 3.9 quarts or 3.3 imperial quarts. I would imagine that the oil capcity of your 2004 echo is similar. After you change the oil and filter add the 3.9 quarts and check the oil level on the dip stick. Also note, my owner manual states that the amount of oil to fill between the low level and the full level on the dipstick is 1.5 liters, 1.6 quarts and 1.3 imperial quarts. Hope this answers the question.