I was a referred here by an internet friend who said that Pennzoil Platinum isn't a good as it's cracked up to be. I'm not sure who to believe on the matter.
Some background: I've had my 2015 Ford Fusion for a little over 3 years. I've been running Pennzoil Platinum full synthetic 5W-30 with either a Mobil 1 or Motorcraft filter (currently running the latter brand) ever since the car's first oil change with me as the owner (I'm the second owner overall, car was bought used, oil is changed every 5k). I haven't had an oil analysis done yet (I have a kit waiting for the next oil change, which will be soon), but I was told by the aforementioned friend that Pennzoil 'doesn't lubricate, and it breaks down under mild heat' (his exact words). I'm not exactly inclined to believe it (since my parents car, a 2012 Focus, has been using 5W-20 Platinum full synthetic for the last 4 years with exactly 0 issues, and that car saw an extensive stop-and-go commute for almost 4 years from the day we bought it), but I do not see any harm in asking questions. Other than very minor oil seepage off the timing cover (which seems to be a common thing with Duratec/MZR engines), my car doesn't appear to be losing oil. The check engine light has never come on for any codes that might indicate issues caused by lack of lubrication (the one time it did come on was for an EVAP purge solenoid failure).
A quick check of Google led me to a couple threads on here, but one was from 2005, and the other one seemed to be an issue of driving style more than anything else.
Some background: I've had my 2015 Ford Fusion for a little over 3 years. I've been running Pennzoil Platinum full synthetic 5W-30 with either a Mobil 1 or Motorcraft filter (currently running the latter brand) ever since the car's first oil change with me as the owner (I'm the second owner overall, car was bought used, oil is changed every 5k). I haven't had an oil analysis done yet (I have a kit waiting for the next oil change, which will be soon), but I was told by the aforementioned friend that Pennzoil 'doesn't lubricate, and it breaks down under mild heat' (his exact words). I'm not exactly inclined to believe it (since my parents car, a 2012 Focus, has been using 5W-20 Platinum full synthetic for the last 4 years with exactly 0 issues, and that car saw an extensive stop-and-go commute for almost 4 years from the day we bought it), but I do not see any harm in asking questions. Other than very minor oil seepage off the timing cover (which seems to be a common thing with Duratec/MZR engines), my car doesn't appear to be losing oil. The check engine light has never come on for any codes that might indicate issues caused by lack of lubrication (the one time it did come on was for an EVAP purge solenoid failure).
A quick check of Google led me to a couple threads on here, but one was from 2005, and the other one seemed to be an issue of driving style more than anything else.