loud knocking
 

hey there ,just started up my newly purchased z, i bought it 2 months ago haven't driven it yet. winter here.it' been cold for about a month so i decided to start it up. a bit of a slow crank and then a horrible knocking sound, sounded like i had no oil. i understand it takes a bit for the oil pump to do its thing but.... wow sounded bad for about 2 or three seconds . any thoughts. let it run for about 5 min seemed fine

low battery maybe? should really put a battery manager on there.
also check your oil level before you crank next time. :)

my car fires right up even after 3months hibernation.

hey ya, battery tender, i should that alright , the oil levels good ,man horrific sound,it really hasn't been that cold

you're probably fine. make sure you put that battery tender connected. :)