Summer fuel at minus 42
We buy fuel by the tanker load and like to order it prior to when the winter blend is out in the fall and after summer fuel comes out in the spring. Consequently we need an additive to keep our fuel f...
Forum Discussion
ShinerBock wrote:4x4ord wrote:
^^^^ Cat C15.
What grade of oil are you using? The C15 has a HEUI pump which reliant on engine oil to pump unlike the common rail fuel pump in your truck. Cat recommends 5W30 or 5w40 for those temps because 15W is too thick.
15w40 seems to work fine so long as the truck is plugged in when it cold. It's not that often the truck gets used in weather colder than minus 10 C. When the fuel gelled the engine was warmed up to 150 degrees. Changing the filters got it started again but the fuel vacuum guage continued running in the red. I didn't take it onto the road. The job I had for it can wait for warmer weather.
