Cold Weather MPG [4cylinder Manual]

I won't act like my driving practices have been perfect which would probably account for some of this, but I've lost almost 60 miles in range this January. Is this normal for these engines to suffer from the cold (it has been single digits and below freezing this last month). In the summer I was hitting anywhere from 390 to 420, but today I had to fill up at 330.

I understand I bought a truck and not to care for gas, but that is still a solid drop.
Anyway thanks for any and all input!

 

I have noticed a substantial drop as well in my V6, I believe this is normal

 

That's winter gas cutting down on your fuel mileage!

 

Normal. I was concerned but decided to do a test on my 17 mile commute (one way) using the truck's fuel mileage gauge. With a cold start I would average around 17.5, where I was used to around 20. I let the truck warm up, then I turned the truck off to reset the trip fuel mileage. Well with a warm start my average for the trip got close to what I was used to (winter gas did play a factor though)

 

Normal for the winter blend gas and real cold weather.

 

Thanks everyone!!! This is actually my first cold winter (Arizona transplant) I never realized there was such thing as cold weather gas.
This nicely re-assures me though!

Side note: fuck this cold!!

 

Yep totally normal. Between winter blend fuel and the cold, I’m down 2-3 mpg. If I’m only doing short trips it’s even more.

 

Yeah, I usually get around 23mpg on my V6, now I'm getting 19mpg. I thought it was a bit harsh too, but from the responses, it's normal. Good question.

 

Hell I'm lucky to get 300 to a tank but I got so much weight on my truck its far from stock lol. Pelfreybilt sliders, skids, bakflip bed cover, hitch and so much more stuff lol.

 

I live in the tropics...Can someone elaborate on the contents of winter gas?

I run 89 octane Ethanol free...

 

Winter blend gas must turn to fuel vapor at a much lower temperature than summer gas. For this reason they mix in a butane additive.

If they kept the same amount of butane in your summer gas it would evaporate much faster in the heat.

 

Winter fuel blends and thicker air to drive through. Summer warm air is thin (hence why planes need longer runways to get lift) and cool air is more dense. Winter fuel blends mess with your BTU content of the fuel. You should be able to stay within 1 MPG of normal...but sometimes it's just a combination (cold air, fuel, longer warm up times, water on the roads, etc.)