Hello gentlemen. i have a toyota altis 1.6 2016 model and when i bought it from toyota sure 3 years back they poured toyota 20w50 in it at 68000 KM. around 9 months back i read on this forum and asked a different mechanic who advised to go for toyota petron plus 10w30 so i did and it worked pretty fine, no oil consumption and average got better as well. now i am thinking about getting rid of toyota monoply in oil and planning to change the brand to caltex havoline which has 10w30 available however the grade is API SN GF-5. as per my reseach it is an upgraded technology in grade but i seek your technical expertise and advise to confirm it. should i go for it? or any other budget friendly brand or grade? also are there any other precautions that i need to take? also i plan to use leppon filter this time around. toyota stuff is getting expensive everyday.
