Best year round oil for LS1?

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- South PA, mild winters for the most part - almost entirely short trips, rarely over 10-15 miles - 80+% city driving. Little highway miles. Bring on the suggestions. ^_^
 
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German Castrol 0W30 Mobil 1 0W30 Change oil and filter every 10K miles or yearly
 
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jigen

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That's what I have in there right now. 10w is fine for the colder starts? I would say it's rare we dip under the 20's.
 
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Why not just run 10W-30 in the warmer months, and a 5W 0r 0W-30 in the colder months? Only planning on one oil change a year or something?
 
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With the driving you do, any brand synthetic meeting GM 4718M. Mobil 1 is fine. Platinum is a great oil also.
 
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 Originally Posted By: Ndx
If I was Pennsylvanian I would be using Pennzoil Only :P
No Quaker State, Brad Penn, or Wolf's Head?
 

Patman

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Pennzoil Platinum 5w30 is working well for my LS1, oil analysis results are good, and I drive mine all year round.
 
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I used M1 0w40 when I had an LS1, since i got it for free. Increased the "piston slap" like a mother! Just noise i believe though, I think the M1 did a good job of protecting.
 
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I love these threads. Eventually every oil and weight known to man will be suggested.
 
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 Originally Posted By: GrampsintheSand
Yeah and if you post UOA's then you get the UOA's don't mean nothing crowd.
LOL. I have to admit that was good. I'm in that crowd.
 

jigen

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For me, my engine didn't sound as "smooth" with GC compared to PP. But I don't know if that has to do with the GC or just running it during the winter.
 
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