Re: Changine Gear Oil In X-mission?
You could let the smell and or appearance of the oil that's in it be your guide, does it smell burnt, or appear milky. Some guys may want to change it just to establish a known point of reference for a new machine not unlike plugs, filters, engine oil etc. Well not "new", but new to them at least
It's only two pipe plugs not sure why you think you'd not be able to reassemble that and it not leaků..may be best to just leave it alone. Just kidding ya, if it's not damaged in some way it's really as much personal preference as anything else.