View Poll Results: How much German Castrol do you have?
1-6 Quarts
16
16.00%
7-12 Quarts
13
13.00%
13-24+
21
21.00%
None! Damn you Castrol!
50
50.00%
Voters: 100. You may not vote on this poll
How much German Castrol do you have?
ive got 18 quarts of the green stuff left. i used to run mobil 1 5w30 and my car had the nice tick and idle'd at 40psi. now the tick is gone and my car idles with 50psi.
this stuff is good.
justin
this stuff is good.
justin
11 & 7 Second Clubs
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From: Motorhome, Freeways, Truckstops, Pits
There are only a limited number of things I can say with certainty, one of which is that neither your bone stock Z or any other bone stock LS1 can make anything close to 457/423, not even on an engine dyno at sealevel in the winter.
Originally Posted by LowETz
Yeah... almost as bad as chasing .010's. Whoever said we weren't "preoccupied"?
Teching In
Joined: Jun 2005
Posts: 25
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Originally Posted by Grimes
oh okay. well i got 6 quarts from autozone that said "made in germany" but the date code on the bottom says "M05" is this stuff still good?
If it's made in Germany, it's good. If it's made in Germany and the date code is M501 or lower it's GREAT!
Originally Posted by NickSimcheck
If it's made in Germany, it's good. If it's made in Germany and the date code is M501 or lower it's GREAT!
Had my M05 German Castrol analysed(Gold), turned out numbers were same if not better then Green GC.
https://ls1tech.com/forums/showthrea...hlight=UOA+M05
https://ls1tech.com/forums/showthrea...hlight=UOA+M05
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Verdad Gallardo yeah, i have to give autozone here some props. i asked a lady about the german stuff and she said "what?". So I said I want the stuff made in germany, not USA. She went to the back room and started taring into all the new boxes until she found some! Not bad. 
So this "new" German Castrol 0w30 formula is amber in color, and is/isn't as good as the green? I was thinking of switching to the Castrol next go around, but if what everyone is using is discontinued and the new stuff isn't as good then I'll stick with my Mobil 1 0w40. Patman where are you?
Thread Starter
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From: Chino Hills, CA
Originally Posted by GMH GTO
Had my M05 German Castrol analysed(Gold), turned out numbers were same if not better then Green GC.
https://ls1tech.com/forums/showthrea...hlight=UOA+M05
https://ls1tech.com/forums/showthrea...hlight=UOA+M05
I didn't really waste that much gas searching for the GC. I had some other errands to do in same areas as the Autozones I wanted to hit. After I use up the GC I'll probably pick up some more Amsoil.
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Joined: Nov 2001
Posts: 7,234
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From: Mississauga, Ontario
Originally Posted by BriancWS6
So this "new" German Castrol 0w30 formula is amber in color, and is/isn't as good as the green? I was thinking of switching to the Castrol next go around, but if what everyone is using is discontinued and the new stuff isn't as good then I'll stick with my Mobil 1 0w40. Patman where are you?
Originally Posted by Patman
The new stuff is unproven yet, although I do think it'll most likely show very similar results as the green stuff. I am still glad I've got 79 liters of the green GC just in case though. By the time I'm done with this supply there will be a lot of oil analysis reports out from people using the new stuff, so I'll know if it's worthwhile or not.
i tried the new stuff and it works great!! i swear i have better oil pressure over even the green stuff. i thought i had the green stuff but then it was the amber stuff, so i figured i would try it since it still said made in germany.
I found some syntec at my local autozone that's made in Belgium...M05 was the beginning of the numbers on the bottle. What's the deal on this stuff? I ended up buying regular old 10w40 GTX since it was on sale for about $20/case.