The Pennsylvania Turnpike Commission says it is lowering tolls for E-ZPass customers using the Street Road Interchange in Bensalem Township. The all-electronic interchange is near the Parx Casino, about a half-mile from the Bensalem Interchange that connects the turnpike with U.S. Route One.  Motorists will save 55 cents if they enter the turnpike at Valley Forge or Fort Washington, 86 cents if they enter at Norristown or Mid-County, and 88 cents if they enter at Willow Grove.  The toll adjustments are effective just after midnight Sunday, April 24.