German Castrol 0W30
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Really?
I guess that is why cars from Acura (RDX), Aston Martin, Bentley, Mercedes-Benz AMG, Mercedes (SLR), Porsche, Nissan's flagship GT-R and the Viper SRT-10 all come with German Castrol from the factory (not to mention the C6 and Z06)?
Oh wait, they don't. They are all factory filled with Mobil 1.
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
IMHO GC 0W-30 is the BEST oil out there. I would NEVER use M1 5W-30 in any of my cars. Now, that is my personal opinion based on reading others research and I will not get into an oil argument. Everyone has their own preference and I don't think any oil on the market is bad or will damage your engine.
Yes, GM uses Mobil 1 5W-30 in every vette that leaves the factory and if you believe that is because it is the best and not because of marketing then I have no interest in trying to change your mind.
Yes, GM uses Mobil 1 5W-30 in every vette that leaves the factory and if you believe that is because it is the best and not because of marketing then I have no interest in trying to change your mind.
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
You can do a lot of research on BITOG.com (Bob is the oil guy) All american Castrol is made with base 3 oil and not all 4 (its a blend), Why? I don't know why I can only assume $$. The german stuff is made totally different from the American base and performs better in every way.
Guest
Posts: n/a
15-50 Mobil 1 here.
Been using it for the past 10 years without fail in everything I own incluging three different boats, all of which had 700+ HP engines, and operate continously in the 4,000-5800rpm range at much more rigorous conditions than a car engine is subjected to.
Been using it for the past 10 years without fail in everything I own incluging three different boats, all of which had 700+ HP engines, and operate continously in the 4,000-5800rpm range at much more rigorous conditions than a car engine is subjected to.
Instructor
Joined: Aug 2004
Posts: 213
Likes: 0
From: Basingstoke England
FWIW, I prefer to use oil with a viscosity recommended by the engineers who designed the car. If GM says 5w-30 is best, that's what I'll use. If GM says to use oil meeting their 4718 standard, then that's what I'll use.
I have no problem with Castrol, Mobil 1, Quaker State, or any other oil, as long as it meets the specs called for by the designer of my engine.
I have no problem with Castrol, Mobil 1, Quaker State, or any other oil, as long as it meets the specs called for by the designer of my engine.
