mapitts

I live in north Alabama. The cool / cold mornings have absolutely made a difference in the HP. We generally start getting winter blends of gas around Thanksgiving. You can feel the difference, although it is small. I even take a small hit in MPG in the winter as well in my vehicles. Also glad for the science lesson as well! Learn something new every day. Thanks.

Roy_R

Pretty sure my M90 is working better in cold temps!

baddog671

I've driven my car in sub-freezing temps plenty of times and she kicks like a mule when pulling out onto the street

Meester_Vapor

I thought it was just her.

She does seem a bit more spirited in the cold doesn't she.

siggyfreud

Should see my GF when I lock her out in the cold . . . talk about spirited.

If only we could have cold weather temps and warm weather traction .

07BLACKGT

I do too and this is very interesting! I had no idea we got different blends for winter and summer.

Yeah OP.. my car felt like a dog this summer. Car feels like an absolute beast anytime it's 60ish degrees or under. It's really a night and day difference for me.

I attribute the MPG loss to the senseless and excessive acceleration that the extra power has caused. Horsepower fluctuation is directly correlated with my right foot. Happens every winter.

mapitts

I am in Decatur, where are you from? As far as gas is concerned, I really noticed the hit in MPG and power in my F150. May be the placebo effect but I really doubt it. About boost in cold weather, we have 8 compound positive displacment air compressors at the plant I work in. Kind of like a huge 2 stage blower. My welding shop is the closest t the boiler house. In the winte I can hold a steady 105 PSI on the air guage. In the summer it falls to between 90 & 95 PSI.

hootie_john

Yep, I noticed it here too. Pretty significant improvement once it drops to 60-ish or cooler.

Rocket254

In North 'Bama also. (Madison) I've also noticed an improvement of late. Mainly late Monday night at a red light

kevinmalec

Not sure how my gas mileage is, since I tend to get on it a lot more now. LOL
How do you know if the gas station gets winter blends? Is it per State regulations or certain gas stations? I get 93 premium at Chevron. =-)