timenright
Thread starter
This web site has been a great resource for me. I started this thread with the assumption that the CJ-4 specification was the important item when it came to my choice of engine oil and its warranty. This forum caused me to dig deeper into the documentation and I discovered that it is the Detroit Power Guard 93K218 specification that will allow me to run a 50k mile OCI on our DD15 (CJ-4 not adequate).
I also learned that I should start with the “approved” oils list for the machinery instead of looking for the oil that I want to use and then seeing if it has been certified (should have read Doug’s column first). My choices are limited if I want to run a 5W-40 engine oil. The choices, as of this writing, for the PGOS 93K218 are as follows:
Citgo, Mystic JT-8 Synthetic
Citgo, CITGUARD Syndurance Plus Synthetic
Mobil, Mobil Delvac 1 ESP Synthetic
Shell, Rotella T Synthetic
Valvoline, Premium Blue
Warren, Lubriguard Full Synthetic
I don’t want to let anyone off the hook, especially the people that are holding my warranty. If something goes wrong, I want to point to the “approved” list, hand them my UOA and ask them how quickly they can have the truck ready to run. I will choose one of the oils in the list above.
Mobil and Shell are readily available in lube bays nationwide. Do the other oils in this list provide any margin of difference in fuel economy or engine protection over the Mobil or Shell products? Likewise, is there a reason to use the Mobil product over the Shell product?
It looks like I will be saying goodbye to my friends at Schaeffer. None of their products appeared on the list. It is not because they aren’t worthy because I think they are. My last oil change with 7000 was at 100k and the only reason I changed it was that I was getting nervous. The lab said things looked fine.
Thanks again to everyone and if you have an opinion on these oils please share it …
… tim
I also learned that I should start with the “approved” oils list for the machinery instead of looking for the oil that I want to use and then seeing if it has been certified (should have read Doug’s column first). My choices are limited if I want to run a 5W-40 engine oil. The choices, as of this writing, for the PGOS 93K218 are as follows:
Citgo, Mystic JT-8 Synthetic
Citgo, CITGUARD Syndurance Plus Synthetic
Mobil, Mobil Delvac 1 ESP Synthetic
Shell, Rotella T Synthetic
Valvoline, Premium Blue
Warren, Lubriguard Full Synthetic
I don’t want to let anyone off the hook, especially the people that are holding my warranty. If something goes wrong, I want to point to the “approved” list, hand them my UOA and ask them how quickly they can have the truck ready to run. I will choose one of the oils in the list above.
Mobil and Shell are readily available in lube bays nationwide. Do the other oils in this list provide any margin of difference in fuel economy or engine protection over the Mobil or Shell products? Likewise, is there a reason to use the Mobil product over the Shell product?
It looks like I will be saying goodbye to my friends at Schaeffer. None of their products appeared on the list. It is not because they aren’t worthy because I think they are. My last oil change with 7000 was at 100k and the only reason I changed it was that I was getting nervous. The lab said things looked fine.
Thanks again to everyone and if you have an opinion on these oils please share it …
… tim