I have done this before. here goes:

DO NOT REMOVE THE OIL COOLER!!!!!!

Get a wrench that grabs the INSIDE of a pipe and remove the pipe that
goes through the oil cooler that the oil-filter screws onto.  Remove
that pipe (May need to loosen the monster-sized nut on that pipe first)
and then the oil cooler will be loose.  Remove the old o-ring and put a
new one in place. You may need to scrape the old o-ring off of the
surface.  Put the pipe back in using the same technique. DO NO PUT any
teflon tape or anything on those pipe threads else you'll have some
issues with cracked blocks...

If you are in a hurry and can't get an o-ring right now, use the o-ring
from an oil filter. btdt.

-matthew

brian M. wrote:

> Ok- so come to find out 20w50 is a bad idea in Illinois- especially  below 20 degrees!
>  I blew the o-ring on my oil cooler!
> Question is- when I go to replace the o ring<when I pull the cooler off, will it puke antifreeze all over?
>  I cant tell from the Bently if this is gonna be a problem- but I would sure like to know before I do it!!!
> Thanks in advance!
> Brian
>
>
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