Oil & Fuel Winter Diesel Motor Oil?

[Chief]

The Fleet Gard 3984 Stratapore filter is a much better filter for your Cummins. I get mine from Geno's too! I got the 421 kit.

 

[jyoutz]

I looked at this oil again today. It's 5W-40.

 

[sniezur]

I run Amsoil 5w-30 Series 3000 oil year round. I change it every 100 hours and use Mobil 1 or Amsoil filters. It definately helps in the winter and has a very good base stock for the 90+ degree summer time use.