Trenton, NJ – New Jersey drivers are set to pay about 15 cents more per gallon starting in June as a required switch to summer-grade gasoline takes effect statewide.
The price increase is tied to environmental regulations requiring a different fuel formulation between June 1 and mid-September, according to the New Jersey Department of Environmental Protection and federal guidelines enforced by the U.S. Environmental Protection Agency.
Seasonal fuel switch drives price increase
New Jersey law requires gas stations to begin selling summer-blend gasoline by June 1, a transition that aligns with EPA standards aimed at reducing smog during warmer months.
The summer blend is less volatile than winter gasoline, meaning it evaporates less in high temperatures—a key factor in limiting air pollution. However, that lower volatility comes at a cost.
Industry data cited by the U.S. Energy Information Administration shows the fuel is more complex to produce and limits the use of cheaper components like butane, typically adding around 10 to 15 cents per gallon to prices.
Not unique to New Jersey
The seasonal switch is not specific to the state. Nearly all U.S. gasoline markets transition to summer-grade fuel each year, though some regions—such as California—follow even stricter formulations that can drive prices higher.
Refineries began shifting production as early as March, with full distribution required by early summer. The change also coincides with increased seasonal demand as travel rises, which can further pressure prices.
Key Points
• NJ gas prices expected to rise about 15 cents per gallon by June 1
• Increase tied to mandatory switch to summer-blend gasoline
• Requirement follows EPA rules to reduce smog during warmer months
State weighing possible flexibility
Amid ongoing concerns about affordability, state officials signaled they are at least considering whether any flexibility is possible.
During a recent discussion with lawmakers, New Jersey Department of Environmental Protection Acting Commissioner Ed Potosnak said allowing continued use of cheaper winter-grade gasoline is “something we are looking at.’
Any such move would face regulatory hurdles, as the summer-blend requirement is tied to federal Clean Air Act standards, which have been in place for decades.
Why it matters for consumers
For drivers, the change is predictable but still impactful. A 15-cent increase can add several dollars per fill-up, particularly for commuters and families relying on daily travel.
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While the adjustment is not driven by a single political decision or short-term policy shift, it often coincides with broader debates over energy costs—especially during high-demand summer months.
What happens next
Gas stations across New Jersey are expected to fully transition to summer-grade fuel by June 1, with the higher-cost blend remaining in place through mid-September.
Officials have not announced any regulatory changes, and the seasonal price increase is expected to proceed as scheduled under current state and federal requirements.
