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Originally Posted By: Virtus_Probi How could Bill Murray have killed that cute little fella? Phil should have at least bitten the crud out of him on the way down. ;^) Interesting movie fact, right after the above shot was taken, the groundhog did bite bill Murray

Here is a cost break down of each oil if that helps. I had not included redline, just because of its cost, but I'll include it here for the [censored] of it. 1. Brad penn, penn grade 76.22(case of 12) 6.35 qt 2. Schaeffer's 7000, 705. 91.16(case of 12) 7.60 qt 3. M1 15w50, 26.44 (5qt jug...

Over the past few days I've learned a lot about motor oil and my different options. I've been debating back and forth between 4 different oils. 1. M1 15w50 2. Valvoline vr1 covventional 20w50 3. Schaeffer's 7000 20w50 4. Brad penn 20w50 I don't think I can go wrong with any of them, any opinions?

Originally Posted By: BrocLuno Depends on the motor... All carb'd and big cam, conventional because you'll have to change it before the synthetic offered any real advantage due to fuel dilution. Lightly modd'd OEM engine, maybe a synthetic and two year change interval, but why... Track car...

I know my original question was concerning conventional 20w50.....but after reading the responses, what would be a good synthetic 20w50? I guess my question is this, am I better off with a conventional 20w50 like the vr1 or brad penn? Or possibly using a full synthetic like amsoil 20w50 full...

Op here, this thread has been very informative. Thanks everyone!

Originally Posted By: Doublehaul I would NOT be comfortable with his recommendations fwiw...but it looks like your mind is made up. That being said my father has a 3800 series II that requires 50wt oil to keep oil pressure. The engine suffered from a hydro-lock after the intake failed early in...

Originally Posted By: A_Harman What's the name of this engine builder? How loose is "loose clearances"? Thompson motorsports built the short block for me and I did the rest. And I don't know an exact number as to how loose they are.

He is actually one of the better engine builders in the LS community with an excellent reputation for building quality engines.

Hello, I have a 6.0 ls engine built for my hot rod, it has a hydraulic roller cam. My paticular engine builder sets up the bearing clearences loose. Because of this, he recommends using valvoline conventional 20w50. Are there any 20w50 Dino oils out there that would be better for my engine...