What oil in the cylinders for winter?
 

Manifolds are off, blocks drained, now to pull the plugs and oil down the cylinders for winter or until I get them out. Ive always just squirted some 30 weight in each cylinder and rolled it over and put the plugs back in. Not that Ive ever had a problem but is there anything better to use than 30 wt?

It should be fine. Cheap, too. :cool:

MARVEL MISTERY OIL -- it stays on the metal and doesn't run off. iIt also will loosen any carbon from the heads and pistons.

Thanks Tinker, I was thinking about using that but wanted a second. Ive never liked the whole fogging idea, just bothers me to see an engine coughing and sputtering itself until it dies.

Merc manual says to either fog or use 20 weight oil. I have always fogged but I think I will switch to straight oil for the four stroke engines.

Formula31,
I fog the heck out of it, then take out all the plugs, squirt some Marvel Mystery oil, bump the starter for one crank revolution, then squirt some more Marvel in and replace with fresh plugs. Maybe overkill !

i firmly believe in overkill.:cool:

I spray fogging oil directly into the cylinders in place of the 30wgt oil squirt. Coats more evenly and stays on the whole winter season. Gravity will work on viscous oils eventually leaving the metal exposed. Plus, you avoid the risk of puddling in the cylinders.

Stricly my .02

BT :cool: