Remote bypass oil filtration

[dvldoc]

*dvldoc, based on this and on the previous post referencing below study,

http://www.animegame.com/cars/Oil%20Tests.pdf;

which is better between Royal Purple 15W-40 and Mobil 1 Turbo Diesel Truck? Are bothe CI4/SN or CI4+...TIA

Both have about 1200ppm zinc so the level of protection will be about the same, it's going to come down to price.

Current API rating
ROYAL PURPLE 0W-40 SM/CF August 8, 2010
ROYAL PURPLE 10W-30 CH-4,CI-4/SL August 8, 2010
ROYAL PURPLE 10W-30 SL* August 8, 2010
ROYAL PURPLE 10W-40 CH-4,CI-4/SL August 8, 2010
ROYAL PURPLE 15W-40 CH-4,CI-4,CJ-4/SM** August 8, 2010
ROYAL PURPLE 15W-40 CH-4,CI-4/SL** August 8, 2010
ROYAL PURPLE 20W-50 CF/SJ August 8, 2010
ROYAL PURPLE 30 CF/SJ August 8, 2010
ROYAL PURPLE 40 CF/SJ August 8, 2010
ROYAL PURPLE 50 CF/SJ August 8, 2010
ROYAL PURPLE 5W-20 SL* August 8, 2010
ROYAL PURPLE 5W-30 SL* August 8, 2010
ROYAL PURPLE 5W-40 SM/CF August 8, 2010


Mobil TDT is CJ-4, CI-4, CI-4 Plus, SM, SL