03-23-2010, 10:50 PM
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#12
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Drives: 2010 2SS/RS IBM Black Polished
Join Date: Feb 2009
Location: Colorado
Posts: 2,106
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Let me start by saying I am using RP. However RP does not meet all the standards set by GM. It is low in sulpher which could damage the Cat Converter should oil get into the combustion chamber. well if you get oil in there you have more problems than the Cats. Way less detergent than Mobil 1 and IMO a better overall product. I also use it in the Diff along with the GM additive.
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418 Stroker, 621RWHP 648 lbs TORQUE Built by Laramie GM Auto Center Tuned by Nick at Mac Autosport. EForce SC, 2 3/4pulley,LPE dual fuel pump, JRE Twin fuel rail upgrade, posi clutch kit, RX oilcatch can and breather, Callies Compstar crankshaft and rods, Racing bearings, CP -13.8 race pistons, steel rings, Comp Cams X6 blower cam, Springs, HD timing chain and tensioner, Doug Thorley Tri Y LT headers, 89.7lb injectors, RPM rollbar, DSS1400 shafts, Simpson 5 pt harness, BMR Toe rods and trailing arms, led lights, RPM input and output shafts
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