every three month
http://www.carspace.com/guides/Toyota-Echo-How-to-change-oil
The check engine light has nothing to due with an oil change.
The Toyota Rav4 engine oil capacity with filter change is exactly 4.0 quarts. Without the filter change its 3.8 quarts.
As long as there is oil in the engine it can run. If it has not had an oil change for a year even if it was stored I would change the oil/filter before driving this car.
6.4 quarts of engine oil with filter change.
5.5 quarts with oil/filter change.
About 5.5 quarts with filter change
how do you reset the check engine light on a 2005 Toyota tundra
About 4. Then run the engine, turn it off, and check the dipstick.
A 2001 Toyota Sequoia with the V8 needs 6.5 quarts. Possibly the same engine???
5.5 Quarts with oil/filter change.
6.5 quarts with filter change.