I drive a diesel and have noticed a milage slump. Thought it had to do with the studded snowtires.
More than likely a combination of things. Winter blend diesel is said to contain less energy per gallon over summer blend, reports of between 4%-10% decrease in mpg. Plus you’re probably running it longer to warm it up in the winter.
Plus you’re probably running it longer to warm it up in the winter.
NO it is garaged. why would something be sold with less in one season than another? Isn’t that lying?