should i switch oil weights?
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TECH Enthusiast
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Joined: May 2006
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From: IN A VAN, DOWN BY THE RIVER!
should i switch oil weights? right now im running M1 5W30, from what i read this is thin and wont protect that good. should i switch weights, if so what to? i like M1 and they don't sell GC around here.
http://www.proformanceusa.com/mall/...+&DESC1=autosyn
there you go man... check that out.. if your around an autozone, i called them and they told me that had NO idea what GC was.. I went in there and sure enough, it was on their shelves..
Later dude
there you go man... check that out.. if your around an autozone, i called them and they told me that had NO idea what GC was.. I went in there and sure enough, it was on their shelves..
Later dude
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
ugh get rid of 5W-30 for sure. if you want to stick with mobil 1, go with 5W-40 or 0W-40. the mobil 1 5W-30 is a borderline 20 weight. it's a 4 cylinder oil in my opinion - too thin for us LS1 guys...unless you like engine wear. hey, it's weight reduction, right? 
my advice to you is to try german castrol 0W-30. WS6store is now selling it for $39.99 a case if you can't find it at autozone. here's a link:
http://www.ws6project.com/user_stor/...oducts_id=1763
it outperforms mobil 1 according to oil analyses.
i don't want to hear this excuse anymore 
it's now very easy to get 
my advice to you is to try german castrol 0W-30. WS6store is now selling it for $39.99 a case if you can't find it at autozone. here's a link:
http://www.ws6project.com/user_stor/...oducts_id=1763
it outperforms mobil 1 according to oil analyses.
Originally Posted by silverbandit0996
they don't sell GC around here.
it's now very easy to get 
unless your car already has wear on it i wouldnt switch....gm specs are for the 30w, a good oil...castrol...will not break down that bad, also heat should be more of the deciding factor on wether you change...even if its thinner it will flow faster then a thicker oil...its kinda a trade off to a point
