Who supplies oil for Cummins?
#1
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Here is the link to the Valvoline Blue that is endorsed and recommended by Cummins Engines. Valvoline.com > Products > OEM Endorsed Products > > Valvoline Premium Blue® Engine Oil
Or you can also move up to the extreme duty and the warranty is covered up to 5000 mile oil change intervals. Valvoline.com > Products > OEM Endorsed Products > > Valvoline Premium Blue® Extreme Engine Oil
I been usin the standard duty for a few years myself and have no complaints.
Or you can also move up to the extreme duty and the warranty is covered up to 5000 mile oil change intervals. Valvoline.com > Products > OEM Endorsed Products > > Valvoline Premium Blue® Extreme Engine Oil
I been usin the standard duty for a few years myself and have no complaints.
#7
i use mobil oil in everything since i learned that you dont change your oil because of viscosity brake down , you change it simply because its dirty and to me mobil oil looks the cleanest coming out of the bottle . so thats my unprofessional opinion on the matter of oil , why spend the $$ on synthetics its not going to get dirty any slower. A better filtration system like a remote oil filter is where $ should be invested.
#8
i use mobil oil in everything since i learned that you dont change your oil because of viscosity brake down , you change it simply because its dirty and to me mobil oil looks the cleanest coming out of the bottle . so thats my unprofessional opinion on the matter of oil , why spend the $$ on synthetics its not going to get dirty any slower. A better filtration system like a remote oil filter is where $ should be invested.
#9
Diesel minded, you are absolutely correct! The other main job of oil besides lubrication, and cooling is to remove soot, and junk in your motor. In a class, i learned when you put new oil into a soot laiden engine, the "new" oil is automatically degraded. This is especeially true when it comes to dino oil ( delo, shell, ect) the semi blends and the full syn oils help a bunch in maintaing viscosity and thermal break down and trap and remove the soot, ect. For an oil company to suggest that you wait for up to 25k between changes is wrong. that is telling me they are trying to justify the price they are charging you. In my motor, i used the kendall (which is now owned by conoco phillips) 15-40 syn blend for 3 years and was able to read the dipsitck through it until 5k when i'd change it. I have now gone to mobil delvac 1 5-40 full syn and it is even more clean. Tells me my filter and oil is doing its job. My buddy who is using amsoil ( not calling them out but as an example) even at 1k on the change, his oil is blacker than black soot laiden and dirty. but bieng a full syn, it still has some viscosity in it. not impressive to me. If a guy was to put on a say for instance a FS2000 soot filter system, the oil would appear brand new on the dipstick. But Mobil told me at a seminar, that if you use a filter such as a "gold" from NAPA that is a good enough filter, the oil will do the rest. True so far in my engine. Clear on the dipstick till 5k when i change it.
#10