'Just read an article in Raleigh, NC, paper about filler caps found missing from 43 school bus fuel tanks yesterday. Article says, "Because allowing air in the Diesel tanks may cause mechanical problems, the caps had to be replaced before letting the buses proceed. This caused many students to be late getting to school." NOT allowing air in tank can cause tank to collapse. Open filler may allow ingestion of other debris which may cause problem, but the tank MUST HAVE AIR.
Wilton 91 350SDL, 87 300D (both with fuel tanks vented to atmosphere/air)
