ZR-1 Net Registry Forums - View Single Post

rush91 · 05-07-2019

My '91 has always had a second or so of rattle, but have noticed it goes away after an oil change. ( Amsoil and AC Delco PF970C ) Once I get around 1000 miles or so on the new oil change, the rattle slowly comes back.....

05-07-2019	#3
rush91 Join Date: Feb 2016 Location: Carterville Illinois Posts: 854	Re: Start up knock My '91 has always had a second or so of rattle, but have noticed it goes away after an oil change. ( Amsoil and AC Delco PF970C ) Once I get around 1000 miles or so on the new oil change, the rattle slowly comes back.....