I talked myself into buying the ZMax's twin pack and added it last night, Friday when I get home from work my car stays in the garage till Monday. It should be easy to hear if it helps that dry start up sound that I've been hearing. I just think 5 W 20 is so thin to begin with, I'm going to try 5 W 30 on my next oil change. The car is 13 years old but only 44,000 miles on it now. I have had it for a year and its been great since day one. I went through the brakes and tire and all the usual under the hood things (battery, belt, alternator, plugs and even coil packs) just for sh _t to do...I added dual exhaust and just finished ordering rear sway bar and needed parts for it. I love the ride of a big car....