yo peeps.. what's the best engine oil for 4G93 engine.. currently using mobil super s 10w-40 and i noticed there are some leakage (minor).. im a little worried now.. can't be the gasket as the mileage is below 80k.. is 10w-40 too thin? or because the side effect of recent high temp weather few months ago? next service is due so really appreciate if u guys can help.
tq
tq