The Costco Auto Program announced Wednesday that it saw nearly double the demand for its parts, service and accessories benefit during the month of June.

That’s compared to the daily average recorded by the company from January through May of this year, a benefit Costco launched for its auto program members in the spring of 2011 to provide a solution for its members who want to maintain and accessorize their vehicles.

The number of dealerships offering the discount has doubled since the program’s inception, while the average daily usage in the first half of 2015 is more than 4 times larger than that recorded in 2011.

“The upward trend in demand for the parts, service and accessories benefit reflects our members’ desire for a cost-saving and effective resource to address their vehicle maintenance needs,” said John Conlon, the manager of Costco Services. “This benefit combined with the multiple savings opportunities available through (the) Costco Auto Program, as well as the savings members receive on a variety of items and tire services at the warehouse, address virtually all our members’ automotive needs.”

The discount is available nationwide for application to any vehicle in a Costco member’s household at participating dealership service departments.

For more information about the program, visit its site here.