Forum Discussion

supercub's avatar
supercub
Explorer
Apr 24, 2018

Is there a difference in Diesel Fuel?

Getting ready to start a trip and I need to fill up, I'll probably take 100 plus gallons to top off. I have a RV plus card that I use at Flying J's that allows for an extra discount. However there's a Quick Stop that has Diesel 35 cents a gallon less. It's a large station, even has 6 devoted truck lanes that appear to be always full, so I don't think old fuel is a problem. So is there a difference in diesel fuel? Am I safe in buying diesel there, Is it the same quality that I typically get at the Flying J's.
Thanks

24 Replies

  • Extremely high likelihood both stations are supplied by exactly the same refinery.

    Said another way, very unlikely that each brand has its own refinery. And, with diesel, additives are not an important part of the fuel.

    Go with the less expensive one.
  • There are lots of arguments about that, but diesel fuel is a commodity and various brands claims of “secret sauce” additives not withstanding, there’s very little difference. Other than the stuff added to winterize fuel in cold weather locations, one supplier is the same as any other. Buy the 35 cent cheaper fuel and enjoy your ride to the bank. Spend the savings to take your mom out for dinner on mother’s day.
  • If it is diesel fuel being sold in California, it will work just fine in your diesel.