Engine oil Mobil or AMSOIL

i'm running the 0w-30 and it seems to have appeased my miata's normally (for all of them) ticky lifters. it starts better cold too.

I noticed M1 burns less then castrol, i might try redline and see. i am pretty happy with m1 compared to castrol thats for sure.

i have used Amsoil for going on 10 years with great success. I have never had a problem or failure with anything i have used it in.

for the last year ive ran the pure one \"micron\" and a a soup of mobil one 5w30 with the lucas fully syn additive. nothing but happy driving. the tick has gone away with the mix, or so i think.

you can use the 5qt. mobile 1 full syntec, thats what i use, it works great!

I used to use mobile 1 fully synthetic 5w 30 with a quart of lucas synthetic oil treatment and it work pretty good and i could get about 5k out of it. I just got hooked up with an amsoil dealer so im now using amsoil's european 5w 30 and im going on 7k and its still pretty effin clear

Mobil1 0W40 is fine.

i've gone M1 0w-40 and love it but i might experiment this summer

I run M1 0w-40 and do that at about every 7k and it could prob go longer.

I'm going on 5 years 1 month using M1 0-40...I did try Castrol 5-50 once just to try it out, and the engine behaved itself...both synthetics and about $6-7/qt...