Ah! So then they'll void the cat failure warranty because of the engine oil? Of rather them do that as a byproduct of using non-motorcraft oil.
And what oil would that be?
Got it got it.
I'll probably switch out to Redline 5w-50 or Amsoil 20w-50 then at around 3k miles or so. Still have the factory fill in it now with only 500 miles I think it's a bit premature to do any oil changing right now.
I believe neither Redline or Amsoil recommend their product to be used on cars during their break-in mileage, correct?
I think all the 5w-50 will sheer lto low 40 high 30 weights. Just too much for the additive packages. Instead of running say a 10w-40, what about a mix of 5w-50 and 15w-50. May help prevent excessive sheering, The car holds 6.5 so it can be split yielding basicallya 10w-50. Any thoughts??
I should test some virgin valvoline roush oil an castrol
how many quart the gt500 needs ?
Sorry guys, I'm still waiting on the BlackStone kit. As soon as I get it, I'll send out the Red Line VOA.