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+--- Thread: Running cold (/showthread.php?tid=3877)
RE: Running cold - mininsx_imp - 11-19-2013
(11-18-2013, 11:39 PM)dBuster_imp Wrote: I am just telling you what the ford service tech told us why the vehicle wouldn't run and he blamed it on the different gas, the winter blend. The sensor was on the intake so I really didn't trust his answer about the gas but the new sensor fixed the car... Just thought it was interesting that an actual Ford service tech blamed gas blends for faulty parts.
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It's easy to blame "bad gas" for a part failure. That sensor doesn't know the difference between winter gasoline and summer blend.
RE: Running cold - flynrider - 11-19-2013
(11-19-2013, 12:11 AM)Rboe_imp Wrote: In Phoenix there is a different blend of gas per season; has to do with air pollution and not cold temps. At least, not cold temps as it relates to directly to real cold weather.
Up in Minnesota we used blended diesel in the winter to try and control the wax from congealing in the filter and lines. I want to say it was a blend of two different diesel grades and not gasoline. But that was a long time ago.
It's actually for both reasons. Since winter gas is more volatile, the EPA requires that gas sold during the winter months in Phoenix has 10% oxygate (ethanol) added to offset increased release of hydrocarbons.
Winter gas is not really necessary in Phoenix, but the refinery and pipeline system convert to winter blend for the whole region, so we get what is available. The ethanol is then added locally.