Looking for advice on changing the oil.

I'm installing a oil cooler tomorrow and will drain & replace the oil. Ready with the new filter and Amsoil.

How long should I leave it running (i.e. warm up) before draining the oil?

What about scavenging all (or most) of the old oil? As I am going synth, I want to make sure I get as much as I can out of the beast.

Thanks in advance.

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01 Night Train - Springer floorboards, Heritage 16" front wheel, Duece 17" rear wheel, Mammoth solo seat, black powder coated tins & very little chrome ...

You should warm it to operating temperature, that is ride about twenty miles or so if possible. Same for a hot level check.

Let it idle for about two minutes to clear the sump.

EZ

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If all isn't lost, where is it?

Nice bike! Don't worry about the scavenging. Mixing the old oil with the Amsoil won't hurt anything.

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06 FXDLI

Life is like a box of chocolates...you never know which one is filled with $hit....

I think he meant scavaging to get the correct oil check level. Even on Dynas and Baggers, I've always thought you should run it a minute or two at idle before checking the oil level, hot. Manuals say that too , I think. I could be mistaken, wouldn't be the first time.

I agree mixing won't hurt but still think getting all the old stuff and its contaminants out is the best method, all things equal.

EZ

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If all isn't lost, where is it?