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it is just the regular sewing machine noise. i put in redline 5-w30 about 3-400 miles ago. it is defenatly quieter . weird thing though it seems to get quieter when the oil gets to 160 or so.

i have seen ft replacement engines put in these many times. napa hm 10-40 imo

I have a 2oo8 zo6. it has the noisy ls7 and I switched to rl and the engine is much quieter. I want to see if this will help even more??

Awesome on plastic!!

I went with the redline. Oil pressure is up a few and the engine is quieter but still has the sewing machine thing going on. Im gonna check pr length this weekend. I got some of it on my hands and that stuff is slick!

My oil does not get hot so I want a oil for start-up but my valve train is noisy and that is what REALLY want is something to quiet this ls7 down... redline is 12/qt. at summit and I live 2 munites from there. and my wally has 6 jugs of castrol 0w40 euro with ti in there dicount isle for...

star tron is what i use. works good. once a year i will give it a super dose.

I called redline and they recommend 5w30 or use 5-40 if i want to quiet it down a bit.

Liqui-moly any good? I have 2 customers that really like it.1 Audi and 1 VW . I can get a good deal on it my shop buys 80% of its parts from napa.

Thanks. Looking at the castrol 0w40. Im not looking for it to completely quiet this engine I just want a improvement in that and protection.

I have a 2008 Z06 and I am getting tired of the sewing machine noise this thing makes. Im thinking about going with rotella 5w40. Been using M1 5w30. Thanks!!