I have not been using the additive, and would have never known that they needed a high zinc content till you guys just mentioned that. I think this is so far the best forum I have ever been on for cars. Don't even get me started on honda forums...
I am looking for a spot to change my oil. Last time I did, I missed the catch completely and let about 4 quarts of oil dump right onto the driveway. 4 bags of sweep junk later - still on the driveway. Landlord was not too happy. I am not sure if I'd want to take it to Jiffy Lube. They do fine with my other cars, but it seems like from what I'm hearing - I should attend to this myself.