Oil to run?

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smythge

65 with a BIG BLOCK
Joined
Dec 11, 2005
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What oil is everyone running? I've been doing a lot of reading and get so many opinions. I have a fresh 440 in my 65 Dart, did the cam break in with Valvoline 10W30 changed the oil right after break in again with valvoline 10w30 now I have about 500 miles on it and am getting ready to change it again. I have read good things about Shell Rotella, Valvoline 20W50 racing oil, just not clear on what would be the best.
 

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