Originally Posted By: Donald
I think you mean the Amsoil ZRT? Does your engine have a flat tappet camshaft. I took a quick look and could not tell. If it does, then thats the right oil. If it does not, then I would go for the ATM. I do not consider your situation a long term storage situation do that does not come into play. Given your wife will drive it occasionally, its just a low use vehicle. She should drive it once better twice a month long enough to get the engine and exhaust nice and hot to burn off any water vapor. Not just start it and let it idle for 5 minutes. I am also assuming your engine is spec'ed to 10W30 in your locale.
the vette is spec'd at a 5w30 actually, but i just want to give amsoil a try since ive heard so many good things about it and noticed they make several different oils that ive never heard of before