986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - UOA

Flavor 987S · 06-10-2014, 05:18 AM

This is only 1 UOA. It is your baseline. You don't know if copper is going up or coming down. Don't fret about it. Do another test in about 5,000 miles.

Are you sure you are using Mobil 5W40? The only 5W40 Mobil I know of is the Turbo Diesel, and that does not look like the additive package for the Mobil 5W40 TD.

Your zinc and phosphorus are low. Look into another oil selection that is higher in those, like Joe Gibbs DT40 5W40 or Motul 5W40, or Mobil 5W50.

06-10-2014, 05:18 AM	#2
Flavor 987S Registered User Join Date: Jul 2009 Location: Arlington Heights, IL Posts: 1,561	This is only 1 UOA. It is your baseline. You don't know if copper is going up or coming down. Don't fret about it. Do another test in about 5,000 miles. Are you sure you are using Mobil 5W40? The only 5W40 Mobil I know of is the Turbo Diesel, and that does not look like the additive package for the Mobil 5W40 TD. Your zinc and phosphorus are low. Look into another oil selection that is higher in those, like Joe Gibbs DT40 5W40 or Motul 5W40, or Mobil 5W50.