bnk89,

Found out what it was...mine made that scuff scuff sounds on cold starts as well...i took the advice in the Synthetic oil discussion, and upgraded my oil from conventional Castrol 10-40 and 20-50 to Mobil 1 Synthetic Tri-Formular 5W-30, along with the oil stabilizer called Hi-Tach. My engine stopped making that scuff scuff sound. It starts with a high revving sound for 10 seconds going up to 2000rmp, and it goes down to 800rmp right after that...then I started driving...as for the fuel with the high octane, it got rid of the knocking sound in my engine. Some people added water or water got into the tank, and created the knocking and scuffing sound in the engine. Now, no more scuffing and knocking on my engine block...just smooth drive...
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