geonc
SPIDER BAIT
my couple pennies.....I have used nothing but Rotella 15-40 in my past 4 diesels and all have gone past the 300k mi mark...3 of those were n/a IDI and in my current PSD I generally use 2-3 qts in 5 k mi.
Not knocking Delo or Delvac by any means.......but Rotella has been very good to me so why change?
And Towkitty has a valid point...MIL specs have changed drastically in the past decade and I find the soot control additives in Rotella beneficial...not so much at the tailpipe.....but what I see during oil changes....it still takes quite a few miles before I see any color change in the oil....you should see the color on dipstick after a service---HONEY golden and difficult to see sometimes
Not knocking Delo or Delvac by any means.......but Rotella has been very good to me so why change?
And Towkitty has a valid point...MIL specs have changed drastically in the past decade and I find the soot control additives in Rotella beneficial...not so much at the tailpipe.....but what I see during oil changes....it still takes quite a few miles before I see any color change in the oil....you should see the color on dipstick after a service---HONEY golden and difficult to see sometimes