Lifted from a busnut board , where most have DD 2 strokes .
Interesting photos of the damage from a wrong oil choice.
USE Da BOOK! for any engine!!!!
Low ash mono weights:
UNION 76 T5X Heavy Duty 40wt:
76 T5X Heavy Duty 40wt monograde motor oils SAE 30, 40 and 50 meet or exceed the performance requirements of API Service Categories CF-2 and CF, and also may be used in applications where API CD quality oils are specified/designed primarily for use in high-output, 2-stroke cycle diesel engines. They are particularly recommended for use in 2-stroke cycle diesel engines in transit buses and marine fleets running on low-sulfur diesel fuel.
TEXACO URSAŽ EXTRA DUTY
SAE 30, 40, 50
The SAE 30 and 40 grades are also specifically
recommended for use in two-stroke diesel engines
requiring highly effective control of wear and deposits.
Texaco Ursa Extra Duty oils:
• meet API Service Categories
— CF-2, CD-II1 (SAE 30, 40, 50)
— CF, CD1
• performance requirements of
— Allison C4 Fluids (SAE 30)
• comply with Detroit Diesel Corporation twostroke
engine recommendations, including the
0.85% ash maximum limit for Series 149 engines.
Sulfated Ash Rates:
Chevron Delo 100 40 WT = 0.76 (24% BELOW benchmark)
Exxon XD-3 40 WT = 0.80
TEXACO URSA EXTRA DUTY = 0.85
Citgo Mystik Premium Fleet Engine Oil 40 WT = 0.90
Shell Rotella 40T 40 WT = 1.00 (Shell Rotella 40T is borderline)
Delo 400 40 WT = 1.35 (35% OUT of TOLERANCE)