986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Oil analysis results. 2 years and >15k between change

saaber · 08-26-2008, 08:42 AM

Wear metals look excellent for that long of a run. Would like to see a TBN analysis at this mileage, I would guess it would be very low. My TBN for M10W40 was less than 50% of starting TBN at 8500 miles.

Flashpoint and viscosity are low. Suggest doing a TBN on next run to see how additives are doing. 10k OCI is a good idea IMO.

Also suggest posting this on the used oil analysis section of http://www.bobistheoilguy.com/forums/ubbthreads.php as you will get tons of educated responses I think.

08-26-2008, 08:42 AM	#3
saaber Registered User Join Date: Feb 2007 Location: Oregon Posts: 118	Wear metals look excellent for that long of a run. Would like to see a TBN analysis at this mileage, I would guess it would be very low. My TBN for M10W40 was less than 50% of starting TBN at 8500 miles. Flashpoint and viscosity are low. Suggest doing a TBN on next run to see how additives are doing. 10k OCI is a good idea IMO. Also suggest posting this on the used oil analysis section of http://www.bobistheoilguy.com/forums/ubbthreads.php as you will get tons of educated responses I think.