what do you guys use?? not for stock ls1. more of H/C fullbolt-on

do you guys believe in Synthetic?? which filter??

valvoline better?? or castrol??

i know GERMAN CASTROL 0w-30 is the best for ls1 but anyone else use something different??

 

mobil 1 filter m107 (i believe)
Mibile 1 5w 30
Thats what I use... on all of cars

 

I use amsoil. I like it way better than Mobil 1. I use the amsoil filter as well

 

Just buy whatever is on sell at O'reily's

 

I can agree with that whole heartedly. We've already been down this road before.

 

yeah i know.. just wondering what other ppl were using. seems like GC 0w-30 is popular here.

 

I used GC before I blew the stock motor up, then went with the cheap **** on the 408.
Hell I changed it every 2500 anyways, worked just fine for me.

Run the expensive **** ifyou dont want to change it for 8k miles or something like Patman does... He knows oil if you want to get into the heavy talk on it..

 

Castrol GTX the cheap stuff 10w-30

 

Its popular because you are on the internet where no one has seen any real results in testing but about 2%. Lots of Nascar teams have tested this **** including chris. whatever is on sale at the time is good.

 

I run 5w20 that is what ford recomends.. I usually run Moble 1.

 

Do you buy it at Barnes and Moble?

 

 

 

I burn oil when using Mobile 1. Been running Super Tech Synth from Walmart. Under $3.00/qt and its realy Quaker State.

 

is super tech really quaker state? I need to find a cheaper oil, been runnin castrol syntec and it kills me 6 bucks a quart times 6.

 

I used to run 10w30 M1. I liked the 15w50 performance driving M1, but cant find it anymore. Now I just run GTX and im happy.

 

Mobil 1 filter and Royal Purple Oil!!