Wingnutt
Junior Member
I just traded my '07 Silverado 2500 with a Duramax in on my '17 Ram 2500 6.4 and have a question about using the extra oil that I have. It's Mobil Delvac 1300 Super 15W-40 with an API CK4 rating. Will it be OK to run this oil in the 6.4s? I know that you can use oil designed for diesels in gas engines provided that it meets or exceeds API SN ratings BUT the SRT 6.4s are VERY picky about what oil you use, but what about the 6.4s designed for truck use?
The following is directly from Mobil's web site:
"Accordingly, this oil also meets or exceeds the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4 and CH-4 service categories, as well as key OEM requirements. Mobil Delvac 1300 Super 15W-40 engine oil is universal, meaning it may also be used in gasoline engines requiring the API SN specification.
Mobil Delvac 1300 Super 15W-40 diesel engine oil is recommended by Exxon Mobil for use in:
High-performance gasoline engines requiring API SN specification."
So it seems to me that it is safe to use, but I would like to hear from somebody with more knowledge than me before I do anything.
I would really like to use this oil seeing as how I have almost 2 cases left over from my Silverado days.
The following is directly from Mobil's web site:
"Accordingly, this oil also meets or exceeds the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4 and CH-4 service categories, as well as key OEM requirements. Mobil Delvac 1300 Super 15W-40 engine oil is universal, meaning it may also be used in gasoline engines requiring the API SN specification.
Mobil Delvac 1300 Super 15W-40 diesel engine oil is recommended by Exxon Mobil for use in:
High-performance gasoline engines requiring API SN specification."
So it seems to me that it is safe to use, but I would like to hear from somebody with more knowledge than me before I do anything.
I would really like to use this oil seeing as how I have almost 2 cases left over from my Silverado days.