10w40 is too thick ! .. which model is your car ? is the engine so old that its reducing oil ?
as per manual .
for non-turbo 0w20 to 5w30 fully synthetic , and for turbo engine 5w30 fully synthetic
you can use any good brand LM, Mobil, ZIC, kixx , havoline imported, etc. just make sure you buy from good trusted shop so that you get genuine oil.
for filter most people use Leppon, I use malaysian or japanese filter(united or micro brand) which is around 350rs available at Filter house shops