Quote:
Originally Posted by TMAllison
If yours has FSS, and you use it, you should use a diesel rated Syn oil only. Otherwise change oil every 3-5k max if using dino.
IMO you should run a good quality syn. Something like Mobil Truck and Turbodiesel, Amsoil, etc.
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+1
City driving = shorter drain intervals. Only way to really tell your drain intervals are via an oil analysis.
for a southern climate 15w-40 sounds nice. So far I've become a fan of AMSOil's Heavy Duty Diesel & Marine 15w-40