Hello! I have a Corolla with a 3ZZFE. The car as 156000 km's. Always assisted on a Toyota dealer with 10W40 oil. From the 150000 I star to do the oil change my self and put 5W30 original Toyota oil on it. The problem is that after 5600 km´s I noticed that on the dipstick "misses" 8 mm, of oil...