throttle response looses by 30-40% after 30min driving.
How the problem begin:
i used to have 10w30 oil in my ride, throttle & performance was all good.
recently my mechanic told me to use 20w50 oil for hot summers,
i was not sure about it, but still i switched over to it, to give it a try.
Now after i found huge power lost, i flushed the 20w50 oil & put back the 10w30.
however the problem has improved by 50%,
but it still has that sluggish throttle after a 30min drive as it was on 20w50, what to do ?
Pajero 2.5 Diesel Turbo 4d56