Truckin

iTrader: (4)

I haven't had this truck thru a winter yet..I know it has a button to shut off the a/c when your running defrost if you want..Some cars still run the compressor on defrost even with the switch off.
Does the 150 do this?
I know there are times you really need ac on defrost but more times you do not

nvr2low

that would make sense, I have been struggling to keep my millage above 20 mpg on my commutes the last week or so. I wonder if they got some in a little early, I have been averaging over 21 for most of the summer that I have owned the truck, then last week I fell below 20 for the first time. my driving habits haven't changed so a change in fuel could be the explanation....

Wannafbody

Depending on where you live, chances are that competitive name branded stations are getting their gas from the same terminal. I know for a fact that that occurs on a regular basis in PA.

JasonNez

^ same here in upstate NY

ct f-150

Butane is a gas at room temperature. Not to be argumentative, but I doubt they would add butane to gasoline.

whitescrew77

Ok, but they do. It is different flavors of butane, called normal and isobutane. They are always components in gasoline, but in winter they are allowed to put more of them in the gasoline when blending. Think of it as gasoline filler.

BulletsForFingers

So let me get this straight. Summer blend can be ran safely in the winter, costs more, and has better MPG? Why aren't they selling it all year round then? People pay good money for fuel additives and exhaust mods that don't do jack sh*t. They'd certainly pay for a fuel that absolutely gets better MPGs.

whitescrew77

Listen google it if you want, but it has to do with Reid Vapor Pressure of gasoline and the EPA. In the usa there are about 20 to 30 different blends on gas for different epa air quality zones. These "boutique blends" have to be specially made for that area. Think california gas vs. texas or alaska gas.

Secondly the temps are hotter in summer. The gasoline boils off voc's quicker, thus polluting the air. Volatile organic compounds. Gas needs a higher rvp to prevent this. In winter it is colder so rvp can go up without polluting anymore than summer gas.

If we had a national gasoline standard for all of the usa that refiners had to make, prices would go down because it would be easier to produce.

CreepinDeth

I don't think that's what winter blend is.....

Alot of states if not all by now employ gasoline at the pumps with a % of ethanol year round.
http://www.fueltestkit.com/state_gui...anol_laws.html

This started in the 1970's and 1980's and the EPA pushed it to all 50 states.
I know IL has had 10% ethanol in Summer & Winter blend fuel for nearly 20 years now.

whitescrew77

Ethanol is used as an oxygenate to increase the amount of o2 in the fuel to let it burn cleaner, again cleaner air. We used to use MTBE as an oxygenate, but it got outlawed. It likes to go to and get into water. Poisoned water supply is bad. Methyl tertiary butyl ethylene. The only safe replacement for mtbe is ethanol. That is why we have 10% ethanol in our gas in most of the big cities in america. Helps keep smog down.