Personally I use Cat diesel oil because my brother is the executive VP at Cat so I get a discount (my nephew works in the oil lab and gives me a break down on my engine condition by reading tea leaves and my old oil filter. That said:
Mobil 1 Turbo Diesel Truck 5W-40 and Mobil Delvac 1 (truck oil) 5W-40 are the same product just branded differently for different markets and is just as good as Rottella (as far as zinc content , buffering agents emulsifiers and detergents). Good news you can find it at Wall Mart stores just about anywhere.
Specifications and Approvals:
5W-40 API CI-4 PLUS/CI-4/CH-4/CG-4/CF-4/CF/SL/SJ X
ACEA E7/E5/E4/E3 X
Mobil 1 Turbo Diesel Truck Meets or Exceeds the following industry and builder specifications:
Caterpillar ECF-1 X
Cummins CES 20072/20071 X
Detroit Diesel Power Guard Oil Specification X
Ford WSS-M2C171-D X
Global DHD-1 X
JASO DH-1 X
Jeff Paquette, Raymond, NH asked the question about the presence of zinc in engine oils. Does Mobil Delvac have zinc in the oil? A lot of racers are using Shell to break in their cams in HP engines due to the zinc in the oil. It works the best. I think most oils for non-gas cars have zinc in the oil to help something? -- Source Mobil Oils web site.
Response: All engine oils have an additive called ZDDP (Zinc DialkylDithioPhosphate) for wear protection. In general, heavy duty engine oils (truck oils like Mobil Delvac) have a higher level of ZDDP than automotive engine oils. Automotive engine oils generally have a lower level of ZDDP to protect the catalytic systems and the oxygen sensors.
Big Dave
Mobil 1 Turbo Diesel Truck 5W-40 and Mobil Delvac 1 (truck oil) 5W-40 are the same product just branded differently for different markets and is just as good as Rottella (as far as zinc content , buffering agents emulsifiers and detergents). Good news you can find it at Wall Mart stores just about anywhere.
Specifications and Approvals:
5W-40 API CI-4 PLUS/CI-4/CH-4/CG-4/CF-4/CF/SL/SJ X
ACEA E7/E5/E4/E3 X
Mobil 1 Turbo Diesel Truck Meets or Exceeds the following industry and builder specifications:
Caterpillar ECF-1 X
Cummins CES 20072/20071 X
Detroit Diesel Power Guard Oil Specification X
Ford WSS-M2C171-D X
Global DHD-1 X
JASO DH-1 X
Jeff Paquette, Raymond, NH asked the question about the presence of zinc in engine oils. Does Mobil Delvac have zinc in the oil? A lot of racers are using Shell to break in their cams in HP engines due to the zinc in the oil. It works the best. I think most oils for non-gas cars have zinc in the oil to help something? -- Source Mobil Oils web site.
Response: All engine oils have an additive called ZDDP (Zinc DialkylDithioPhosphate) for wear protection. In general, heavy duty engine oils (truck oils like Mobil Delvac) have a higher level of ZDDP than automotive engine oils. Automotive engine oils generally have a lower level of ZDDP to protect the catalytic systems and the oxygen sensors.
Big Dave