This is a discussion on Amsoil voiding warranty with Signature Series within the F150 Ecoboost Maintenance forums, part of the F150 Ecoboost Garage category; You're sounding like MSNBC news. What I just said is a fact, it tests the best by multiple third party agencies in a variety of ...
You're sounding like MSNBC news. What I just said is a fact, it tests the best by multiple third party agencies in a variety of tests and it's formulation. How can you argue against that? A manufacturer not using them means nothing.
Manufacturers can have deals with those oil brands. We don't know the back stories why they select it but I can safely assume it has something to do with money. If Koenigsegg is the best, which you are insinuating, and they use castrol, why don't all the top car use castrol? Many highend cars use Mobil.
My Build Thread w/ Oil info https://www.f150ecoboost.net/forum/6...tml#post243541
Official Blown Engine thread https://www.f150ecoboost.net/forum/3...ne-thread.html
Official FAQ threadhttps://www.f150ecoboost.net/forum/6...aq-thread.html
Thats a badass sticker lol
2013 FX4 - Black Betty