My guess is it will be a lot of motor oil and car wash type stuff. But you never know... Home Depot will sell auto supplies at 10 Fla. sites ATLANTA -- Home Depot Inc., the largest home-improvement retailer, is testing sales of auto supplies in 10 stores in the Jacksonville, Fla., area, according to an analyst. Home Depot is dedicating about 500 square feet to the products, which include motor oil and fuel additives, said Thomas Weisel Partners LLC analyst Matt Nemer. The Atlanta-based retailer is selling the auto supplies for as much as 22 percent lower than auto-parts retailers, including AutoZone Inc., Pep Boys - Manny Moe & Jack, and Advance Auto Parts Inc., Nemer wrote. Home Depot occasionally experiments with new products and services at its more than 2,000 stores. The company plans to add four convenience stores in Tennessee in the first half of 2006 and may expand that to 300 by 2010. Nemer said he didn't expect an immediate impact on auto parts retailers. If Home Depot expands the program nationally, or if No. 2 home-improvement retailer Lowe's Cos. were to add similar products, parts retailers' sales or profit could suffer. Shares of Home Depot fell 37 cents Tuesday to $41.43. "We are somewhat concerned for auto-parts retailers given that Home Depot already targets the appropriate customer base, the male do-it-yourselfer," San Francisco-based Nemer wrote.