Hard Habit to Break - How Will EPA's Plan for Year-Round E15 Sales in Eight States Play Out?

The Environmental Protection Agency (EPA) has approved a request by governors from eight Corn Belt states to remove a summertime waiver for Reid Vapor Pressure (RVP) included in the Clean Air Act (CAA) for E10 gasoline, a 90/10 blend of petroleum-derived gasoline blendstock and ethanol. The motive for the governors’ request was a desire to increase sales of E15 gasoline and, by extension, boost ethanol/corn demand by putting it on the same summertime footing as E10. In granting the approval, the EPA conceded that the distribution system wasn’t ready for the change. In today’s RBN blog, we look at the decision and the impact it will have on refiners, retailers and drivers, and how it is likely to work against the Biden administration’s plans to keep a lid on gasoline prices. 

If you’ve filled up the tank in your car, SUV, or pickup in the past few days, you probably bought your first batch of winter-blend gasoline since the spring. It’s unlikely that you noticed a difference — only a refining geek with a nose for this sort of thing would — but winter gasoline has a higher Reid Vapor Pressure than summer gasoline, and therefore evaporates more quickly and emits more fumes. There’s a logic to EPA’s mandated switchover from lower-RVP gasoline to higher-RVP gasoline each September, and their switch back to lower-RVP each April/May. For one thing, using different gasoline blends during the colder and warmer months helps ensure that your engine runs well year-round; for another, reducing gasoline vapor pressure in the summer reduces emissions that contribute to smog. Today, we discuss gasoline RVP, why it matters, and how refineries ramp it up and down. (A hint is in the blog’s title.)

It’s no secret that higher gasoline prices are a problem for a lot of folks, including everyday drivers, businesses and — maybe especially — the politicians who hear the complaints from the first two. Although prices at the pump have been trending higher for some time, they’ve really come to the forefront in the past several weeks following Russia’s invasion of Ukraine, which has stressed global energy markets and sent U.S. officials looking for any and all options to keep a lid on prices. In today’s RBN blog, we look at President Biden’s decision to allow the sale of E15 gasoline during the summer months, whether it’s likely to provide U.S. drivers significant relief from high prices this summer, and how global pressures are moving ethanol prices higher too.