What oil are you guys using

I am wondering what oil you guys are using, grade weight as well. My car lives on the rev limiter, has for the past 3 years, it has all the regular bolt on mods. I am limited to Mobil 1, royal purple, and quakerstate. Or some weird Germany oil for twice as much. I am currently using the Mobil 1, but not sure if I am using the right weight. Thanks

Im using Quakerstate high rpm synthetic blend...in 20w-50. I got the high rpm for my b16, I dunno if it helps but I feel a little better.

i currently use Castrol GTX 5w-30, but once my turbo goes in i will be using Mobil 1 10w-30 synthetic.

i have always used 10w 30 on all my 4 cylinder engines. i was told to by someone. oh and i hear good things about castrol gtx

I had 10w-30, until I realised that right in the service manual, it states that it is not a good oil for the temperature range in florida....

I use either mobil-1 or redline.

mobil 10w-40 (thicker is better for older engines, but not to damn thick)

10w30 castrol gtx

10W30 Castrol GTX ...
Soon to be Royal Purple Synthetic 10W30 (switching over this summer)

Valvoline 10w-40. *shrug* dont know if its good. pushing 260,989 miles.

walmart synthetic 10w30