Long story short, I’m trying to shorten the duration of sound on start up without having to resort to Pennzoil/MMO combo. I have M1 0w-40 in it now and would like to add an additive like BG MOA? Liqui-Moly MOS2? Cera Tec? Something else? before trying a thicker oil. And yes, having the dealer actually fix the problem would have been ideal, unfortunately this is the hand I’ve been dealt... thoughts and comments appreciated. thanks,
I’ve done the following so far with regards to oil/oil filters…
(23,750) Ran Pennzoil Ultra full synthetic with a Fram XG-3506 (to help clean any possible sludge)
(28,500) Drained 1qt and added 1qt Marvel Mystery Oil 500 miles before oil change (to further help clean any sludge)
(29,000) Switched to Pennzoil Gold with Fram XG-3506 filter
(30,250) Drained 1qt and added 1qt Marvel Mystery Oil 1000 miles before oil change (Pennzoil Gold and MMO had the best results, it quieted down the rattle to a split second)
(31,000) Ran Pennzoil Gold with Fram XG-3506
(32,000) Switched to Castrol Titanium with a Fram XG-3506.
(33,800) Dealership replaced the cam actuator sprocket only (12589782) cleared P0017 code. changed oil with AcDelco 5w-30 Blend and PF46e filter noise still present !!!
(34,000) 300 miles later drained 1qt and put AcDelco 0w-20 Blend (so a combo of 5w-30 and 0w-20)
(34,100) 100 miles later drained and replaced with Castrol Magnatec 5w-30 with the same dealer acdelco PF46e (which I drained and reinstalled)
(34,200) 100 miles later replaced to the acdelco “classic” PF46 which is about ½” longer and internal cage is metal vs plastic on the “e” (did not add make up oil)
(34,500) 300 miles later drained 1qt and put Castrol Magnatec 0w-20 (so a combo of 5w-30 and 0w-20)
(34,850) 350 miles later switched to Mobile 1 0w-40 with PF46e filter
I’ve done the following so far with regards to oil/oil filters…
(23,750) Ran Pennzoil Ultra full synthetic with a Fram XG-3506 (to help clean any possible sludge)
(28,500) Drained 1qt and added 1qt Marvel Mystery Oil 500 miles before oil change (to further help clean any sludge)
(29,000) Switched to Pennzoil Gold with Fram XG-3506 filter
(30,250) Drained 1qt and added 1qt Marvel Mystery Oil 1000 miles before oil change (Pennzoil Gold and MMO had the best results, it quieted down the rattle to a split second)
(31,000) Ran Pennzoil Gold with Fram XG-3506
(32,000) Switched to Castrol Titanium with a Fram XG-3506.
(33,800) Dealership replaced the cam actuator sprocket only (12589782) cleared P0017 code. changed oil with AcDelco 5w-30 Blend and PF46e filter noise still present !!!
(34,000) 300 miles later drained 1qt and put AcDelco 0w-20 Blend (so a combo of 5w-30 and 0w-20)
(34,100) 100 miles later drained and replaced with Castrol Magnatec 5w-30 with the same dealer acdelco PF46e (which I drained and reinstalled)
(34,200) 100 miles later replaced to the acdelco “classic” PF46 which is about ½” longer and internal cage is metal vs plastic on the “e” (did not add make up oil)
(34,500) 300 miles later drained 1qt and put Castrol Magnatec 0w-20 (so a combo of 5w-30 and 0w-20)
(34,850) 350 miles later switched to Mobile 1 0w-40 with PF46e filter