No it was knock lasted 30-60 secs and still there quietly till the truck warmed up. ( note: weather was 20-30)
I switched 2 royal purple, for 3-4 oil changes then the price jumped to $9.XX a quart. so i change the oil last week with mobie 1 i had in the shed that was already paid for. guess what the cold knock came back.
im in the market for a new oil.
