Gas prices hit record highs in many parts of California on Wednesday, with greater Los Angeles seeing an unprecedented average of $6.49 per gallon for regular. Prices in some southern California locations spiked at more than $8.00 per gallon.

But experts said Golden State drivers whose tanks aren’t near empty may want to hold off on filling up, because relief may be on the way.

Statewide, prices reached $6.42 per gallon, up a penny from the day before, and just under the record average of $6.44 set June 14. That’s nearly $3 higher than the national average of $3.83, according to AAA.

By midday, however, there was good news: Wholesale spot prices for gasoline sold by refineries and others in the Golden State dropped by as much as $1.25 per gallon off recent highs and could fall further, said industry analyst Patrick De Haanwith GasBuddy, which tracks oil and gas markets. 

De Haan told USA TODAY that the single biggest factor contributing to the decline was likely California Gov. Gavin Newsom on Friday directing state air regulators to allow oil refineries to immediately switch to producing cheaper “winter blend” gasoline a month earlier than normal. A costlier “summer blend” of gasoline that produces less dangerous smog when it mixes with hot summer sunshine is normally required in California from May until the end of October.

Newsom spokesman Alex Stack said in an email Wednesday: “Gov. Newsom took direct action to bring Californians relief, transitioning to winter-blend fuel early and holding the oil companies accountable for surging gas prices despite low crude oil costs and record profits.”

But, he added: “While this is welcome relief, we’re still focused on getting answers for this unprecedented price spike.” 

While some gas stations might drop retail prices as soon as Wednesday night, De Haan said more widespread declines would likely occur over the weekend, as owners and operators first use up the higher-priced supply in their tanks, then fill them over the next few days with the lower-priced supply.