New Super Tech 15w-40 CK-4/SN Full Synthetic

[JavierH19]

Hell Walmart has Delo 15w40 syn on clearance for 12 bucks a gallon. Idk if that would be a good choice for a 8k-10k oci either. Dual rated!

Just about all of them are good for long drains since almost all of them have the vds 4.5 certification. If I could get whatever brand 15w-40 with the vds 4.5 cert for $12 I'd buy it up.

 

[Shucks18]

if I had to guess, it seems an a3/b4 euro oil, especially 5w40 is a better choice for extended drains compared to something like mobile 1 esp 5w30. Slightly higher starting viscosity, higher tbn…

 

[JavierH19]

if I had to guess, it seems an a3/b4 euro oil, especially 5w40 is a better choice for extended drains compared to something like mobile 1 esp 5w30. Slightly higher starting viscosity, higher tbn…

It can be though not always because It's the tbn retention and the acidity value after use that tells the full story.