Thread: oil change
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Old 06-10-2021, 04:41 PM
track73 track73 is offline
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Join Date: Nov 2006
Location: Munster In
Posts: 1,504
Default oil change

I have always changed oil after the engine was at operating temperature. But I was wondering why. If the engine in question was at operating temp when it was shut down and hasn't been run for a day or 2 and the ambient temp is in the 80's, wouldn't the oil have been all drained to the lowest point anyway. Since I'm retired I don't put many miles on my daily driver. Why nor just drain the oil for an hour with out heating it up?

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1979 Trans Am WS-6 .030 455 zero decked
flat pistons
96 heads with SS valves
041 cam with Rhoads lifters 1.65 rockers
RPM rods
800 Cliffs Q Jet on Holley Street Dominator
ST-10 4 speed (3.42 first)
w 2.73 rear gear

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