I bought a diesel truck a few months ago and I'm trying to track down why I'm not getting very good MPG. How does one know if the gas station is pumping out a "winter" blend of diesel? I'm in NW Oregon, where it doesn't normally get that cold, but definitely below freezing this time of year.
Is it variable based on the weather forecast? Do they just sell the winter stuff all winter anywhere it gets cold? Should there be a sign on the pump somewhere?
Is it variable based on the weather forecast? Do they just sell the winter stuff all winter anywhere it gets cold? Should there be a sign on the pump somewhere?