motor oil in my car
 

how good is it to use AMSOIL 10-W30 in my vehicle with the approved ams oil oil filter?

Amsoil is a great synthetic oil, perhaps the best.

I recommend it for engines that are broken in and have less than 60k miles on them.

BUT.......if your engine has lots of miles on it using dino oil, then I don't recommend synthetic.

Syn oil will wash away the varnish and minor buildup around the seals, which will cause leaks to develop.

well its is supposedly a rebuilt 7mgte with around 35k on it and has ran synthetic i think it was castrol synthetic 10w30 and i just switched to ams oil yesterday is that good?

Very good.