Helotes, Texas (AP) The new school buses being shown off by a Texas school district look just like the old ones, except on the inside.
Officials say they are the first buses in the nation to come off the production line propane-ready.
The head of the Northside independent school district, near San Antonio, says the 16 buses are cheaper and cleaner than traditional diesel models.
The superintendent says a gallon of diesel costs around $4, while a gallon of propane is less than $2.
Many districts across the U.S., including Northside, have already converted older school buses from diesel-run to propane.
The district is the fourth-largest in Texas and among the 40 largest in the nation, with an expected 88,500 students next school year.
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