Welcome RK

Actually amsoil is a better oil as far as independent tests proove, as far as justification of cost, if you use amsoil as prescribed it is cheaper but most folks just cant get beyond that extended drain interval thing. I run it in my jet-skis, harleys, atv's, outboards, diesel trucks, gas trucks etc. i change the oil in my diesel trucks using amsoil only every 25,000 miles with a filter change every 5k. All said in most tests Mobil 1 is a real close#2 and of course Mobil now has an extended drain oil but still not as extended as Amsoil.
If your gonna change the oil early or at the manufacturers interval heck go real cheap and just use petroleum base oils. we been doing it for 100 years, But the synthetic thing makes us owners feel better huh?
Good Luck