Oil recommendation

[Ragnarok]

Hey guys, I've got a 94 Thunderbird SC with a twin screw supercharged 3.8 liter motor running about 420+ rwhp. It has a crate motor with 12k miles and a custom grind roller cam/ported heads. Thanks in advance! Price really isn't a concern for me, I am a pretty spirited driver, so I just want what will be best for my motor!

 

[oldhp]

Contact Royal Purple or Red Line oil for their thoughts. But most probably Pennzoil Platinum or Mobil1 or Castrol Edge would also work too!

 

[Eddie]

"price is no concern" so contact Red-Line. Ed

 

[Nissan101]

There are a lot of better choices than royal purple

 

[Olas]

Redline.
I'll bet they advise you to use their xw40