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Re: "synthetic oil" versus normal oil....
I used mobil 1 in a turbo import I used to own. The original motor & turbo had 0 problems. (I drove it hard). When I pulled the running motor out for an upgrade, everything in the engine was clean, I mean spotless! It has 195K on it too. I’m convinced it’s the way to go. After you see an engine that used Pennzoil all its life you’d change you mind!
s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. 
Last edited by Sport/Truck; 12-18-2008 at 01:30 PM.
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