Should this be important when putting new pedals on? Speaking of lubes anyone use the Boeshield?

Yes, It's important to use GREASE on the threads. Here's a video of how to replace them: https://bicycletutor.com/replace-pedals/

I'm pretty sure lube is different from grease. You want to put on grease to prevent the pedal from seizing to the crank, so that it's easy to remove if you ever need to take the pedal off. Lube is used to reduce friction thus letting things move past each other easier, I don't think that's what you want.

Cool, thanks for the link. Actually you are right about the grease, lube is I think more for applying to a cog or something like that.

grease for cog, too, pal.

Grease IS lube. Grease is just oil with soaps added to get the thick consistency. Its purpose when assembling things is to prevent thread galling during assembly, and to prevent corrosion after so the parts may be disassembled. Plain oil would work for the first purpose, but would creep out too much eventually to fully protect against corrosion.

Just to clarify, grease should go on anything that has threads (so you should put grease on the threads of a hub before you screw the cog on). Oil is good to put on a chain, and as the chain rotates around it spreads oil to the cog and the chain ring. Doing this decreases friction in the drive train and often makes it quieter and gives longer life to the components.

Got it! thanks..

just this arvo i removed a set of pedals from a particularly old repco that had never come off in the bikes whole existence. the bike had weathered some seriously hectic climates over the years down here, and was kept outside for more than three quarts of its life im told. they came off wihout a worry and there wasn't a hint of grease having ever lived on the threads. go figure.

probably ridden like a baby. i pulled a set from a rider who was a time trialist, no grease. took me, a four foot steel cheater bar, my friend, gravity and all of our might to remove it.

twice.

heh, I've got two sets of cranks that have a pedal stuck... 6' breaker bar + penetrating. oil + heat and still no go.

Guess I should have greased before putting on my winter bike a couple years ago.