Xulfiqar bhai, I see that when it comes to cars, ur the man to talk to. i request your help
I have a 2010 Gli 1.3 petrol, 2nzfe, clocked 35k on the odo , been using 20w-50, (the toyota motor oil) from day 1. The only thing that bugs me is that the oil is SL/CF & SAE category. My knowledge is limited when it comes to category and I wish to switch to SN or SM oil because I think they are the latest oils and will perform better. Could u put some light on this ?
Q1. Should I use thicker oil (20w-50) or a less viscous oil (zic A+ 10w-30)?
Q2. a 20w-50 will last more KM than a 10w-30 oil?
Q3. should I shift to SN,SM oil? I have my mind on the caltex havoline 20w-50 SM
Havoline Gasoline Engine Oil - Fully Synthetic, Blend & Formula - Caltex Pakistan
Please recommend,people suggest zic A+ or shell ultra (both are below 20w-50 grade)
and also tell should i drain the old oil and put in the new oil (of different grade) ? Or should I flush the engine ?