Is GC 0W-30 too thin
Thread Starter
Staging Lane
Joined: Jun 2005
Posts: 91
Likes: 0
From: Atlanta, GA
Is GC 0W-30 too thin So I just put the much-acclaimed Castrol German Synthetic 0W-30 in my LS1, and was talking to my friend about it. He was horrified and told me, "it wont create enough pressure to float the main bearing properly, given your oil port sizes." Now this is a guy really familiar with the old SBCs, but has never worked on or done anything with an LS1.
What do you think? Seems like it wouldn't matter to me since the operating weight is stil 30W anyway.
I live in Georgia BTW, warm climate.
What do you think? Seems like it wouldn't matter to me since the operating weight is stil 30W anyway.
I live in Georgia BTW, warm climate.
TECH Senior Member
Joined: Nov 2001
Posts: 7,234
Likes: 1
From: Mississauga, Ontario
It's true, this oil is almost a 40wt, it's at the very top end of the 30wt range, so it's not a thin oil by any means. The 0w part is what fools people. It's rated 0w simply because it's got a very good cold cranking number in extreme cold. But truth be told it's actually a little thicker on a cold start in average temperatures than most 5w30s.
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Verdad Gallardo TECH Senior Member
Joined: Nov 2001
Posts: 7,234
Likes: 1
From: Mississauga, Ontario
Originally Posted by jmm98LS1
So what about running GC 0w30 in a gen I sbc?? I run it in my LS1's, should I run it in my gen I 355 sbc too?
Originally Posted by brightgreenZ
Have you ever thought of using AMSOIL 0-w30. Used it in Camaro for over 4 years with
no problems.
no problems.
TECH Apprentice
Joined: Jul 2005
Posts: 353
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From: Stuck in traffic
Originally Posted by brightgreenZ
Have you ever thought of using AMSOIL 0-w30. Used it in Camaro for over 4 years with
no problems.
no problems.
German GTX is good, but a quality full synthetic is the way to go.
