[quote author=BlackFusion07 link=topic=180920.msg3828946#msg3828946 date=1287152296]
Hopefully this doesn't spark too much of a debate, I'm just looking for a couple quick answers.
I'm a couple hundred miles over my suggested 3000 mile oil change. A roommate suggested I switch over to synthetic (gave me the oil run down) and pretty much convinced me to do so. Now this morning a friend of mine said switching to synthetic for the first time at 78k miles could cause issues, such as leaks.
Does anyone see a problem with me switching over? I'd like to due to the benefits, but if there are leaks, seals or any gasket issues I would assume to stick with conventional.
Edit - When I began typing my reply, fatabbot had not yet posted yet. Curse my slow fingers!
There is no reason that you can not switch over to a full synthetic with your mileage, if you wish.
Also, just as an FYI: I believe that the "Normal Service" oil change interval for the 2007 Fusion (I-4 and V-6) is 6 months/5,000 miles. "Severe Duty" or "Severe Service" would be
6 months/3,000 miles
EDIT-3 months/3,000 miles. But don't take my word for it, you can find the correct information in the Scheduled Maintenance Guide. My apologies if you already knew the "Recommended OCI" information. And of course, if you wish to change earlier than Ford recommends, it will certainly not hurt anything.
Hope this information helps.