KULTULZ
Well-known member
And since the Rotella subject came up again maybe this might clear up a few things. https://www.youtube.com/watch?v=0Ml6vDdt2ig
You will never wake them up Jeff. Just like brakes and hydraulic valve-train adjustments.
When an oil is rated for HEAVY DIESEL, it has no business in a PASS CAR gas engine. At one time many many years ago, it was the necessary go-to but the industry has come out with new and better for older cars while skirting regulations.