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Old 05-20-2003, 08:37 PM
psfred psfred is offline
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Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
M103s don't have knock sensors, and will rattle, ditto for M117/M119 early with K-jet.

Play it safe, use premium. Detonation at high speed, when you cannot hear it, will roast the piston crowns and valves, not cheap.

Peter
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