STOCKTON – For over three decades, Mataga Buick GMC Cadillac has serviced the Central Valley’s new and used-car needs.The family-owned and operated business is located in the Stockton Auto Mall, 3261 Auto Center Circle.Owner Yosh Mataga started in Lodi as an Olds and Buick dealership, and later branched into Stockton. In that time, he’s had plenty of satisfied and returning customers.“A lot of our business is repeat and referrals,” said general manager Kathryn Mataga-Shimane, who is also Yosh’s daughter. “We’ve had generations of families who, for years, continue to give us their business.”Among the repeat customers was Darlene D. (last name was unavailable) of Stockton.“My third car purchased from Mataga – (I’ve) always been happy with the courtesy and care given,” she said.