2007 buick 3.5. not 3.4....

[Jaxon]

Ok typing from my new tablet and wife naging me, so bere with me.
2007 buick rondevuois 180,000 KM YES KM...
New to us, want to clean the engine via oil changes
Recomendations???
Regular Pennzoil or high milage Pennzoil??
What ya say / think ??????

NOTE: 3.5 L. NOT 3.4 OR 3.6

Input well come..!...

Thanlks,
Jaxon..

 

[Ram01]

PP will clean it up

 

[LeakySeals]

(Rendezvous) Pennzoil Platinum or Pennzoil Ultra. used oil analysis show low copper and lead, something GM series engines can shed with the wrong oil.

 

[tig1]

M1. See the link.

http://www.mobiloil.com/USA-English/MotorOil/Synthetics/Mobil_1_Sludge_Protection.aspx