DETROIT (AP) _ Looking for a reason to love that Lexus? Try this: the luxury car has topped a survey of the most dependable vehicles for the fourth consecutive year.

Lexus, made by Toyota Motor Corp., had the most dependable 5-year-old cars in a study released Wednesday by J.D. Power and Associates. Cadillac, made by General Motors Corp., was No. 2 _ also for the fourth year in a row.

Luxury or premium brands held seven of the top 10 spots. The exceptions were GM's Buick and Oldsmobile divisions, and Toyota.

``Primarily it's the luxury vehicles that do well,'' said Jon Power, manager of dependability research and the son of the market research firm's founder. ``They are using better materials because it is a luxury vehicle.''

Four of the five cars that scored best were from Lexus: the LS 400, SC 300/SC 400, the ES 300 and the GS 300. Also in the top five was the Cadillac DeVille.

The survey covers 54 vehicles from 35 makes. The rankings are tabulated based on surveys of more than 28,000 original and second owners of 1993 model year vehicles. The owners are asked to rate their vehicles in 89 categories of problems.

J.D. Power said the most reliable mid-size cars were the Buick Regal Coupe, Oldsmobile Cutlass Ciera and Buick LeSabre. The top three pickups were the Mazda pickup, Toyota pickup and Toyota T100.

When it came to sport utility vehicles, J.D. Power said the Isuzu Trooper, Toyota Landcruiser and Toyota 4Runner were the most reliable 1993 models. As for 1993 vans, J.D. Power cited the Ford Econoline/Club Wagon, Mazda MPV, Oldsmobile Silhouette and Toyota Previa.