Amsoil > *
#22
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I used the GC and the piston slap was noticably louder than even the dino oil it had in it when I picked up the car. I switched to the Amsoil 5W40 and my slap on cold startup is almost totally gone. I would highly recomend it. Also I think the 30wt oils in any brand are too thin for the LS1, especially if you are putting track time on her.
#25
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Originally Posted by Greaseymec
Check the application guide. I think LS1 engines use the SDF 64. I think LT1 uses SDF 32. Dealer here also!
Mec
Mec
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#27
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Originally Posted by Bill Bowling
That air filter sounds cool. I wonder how it flows compared to the K&N.
Bill
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Bill
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#28
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Originally Posted by Tranzor_Z28
LS1s use SDF32 as the regular sized filter. We can also use SDF64, which is the stock Silverado filter... it's just about a 1/3 longer than stock, but works great. ![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
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#32
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Originally Posted by CAMJAG
Im using mobil 1 5w 30 and after reading this thread gona try the change... What about Royal Purple? Anyone want to post thier experiences with that oil.
#34
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Originally Posted by ninobrn99
ive used royal purple and mobile 1 with no issues...why come for i havent heard of amsoil before? so are we talking about 26-27 bucks for it? who locally carries it?
Take a look at amsoil.com for more info about the product. If you don't have any success finding a price you like locally, let me know, I give the best price I can to my fellow LS1TECH members.
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