Everybody has there own opinion about what oil to use.
So, mine is, I use 10w-30 in every small engine I use.
Hot weather they say, who ever they are, say to use 30w.
10w-30 for me, is easy to get any where if you need it, on sale sometimes and why have to rememeber what oil to put in what.
Manuals I have say use 30w. But also say 10w-30 is good to use. Just check oil more often.
Filters, filter dirt out. Some may or may not do a better job than others. Not gunna make a lot of difference.
Just my opinion, others will have theirs.
Noel