Ok guys. I am currently using Castrol GTX in my EE90 and i am feeling after some 1500KM the oil level drops little bits its like the oil is breaking up after 1500 KM..
I was thinking of Using Caltex Formula (Semi Synthetic) which is 10-30w its a thin oil is it recomended for Toyota 2E Engine with almost 200000KM on it?
What other options we got?