Cold weather Ecoboost
01-27-2013, 10:28 PM
#41
Senior Member
^^agree with Mike, but I don't know the exact figure of winter mix fuel in relation to percentage. What I do know, is that all oil refineries make gasoline targeting a seasonal "Reid Vapor Pressure". Basically the winter months call for a higher RVP than the summer months to provide a better ignition from a cold start...as it has been mentioned previously. To accomplish this, lighter hydrocarbons are blended or removed to target RVP. Higher RVP = more light hydrocarbons than normal. Lower RVP = less lighter hydrocarbons than normal.
We get winter fuel in south la. Not sure about Tx, but probably the same. But, as I said, it's only about 2% btu's, vs a 5% loss with E10.
