Greg's Auto Service is a locally owned and operated foriegn and domestic auto repair and maintenance shop. Our goal is to get your vehicle fixed and safely back on the road, and prevent future failures through proper maintenance. We're trusted in Corvallis since 1991. Greg's Auto Service is a locally owned and operated foriegn and domestic auto repair and maintenance shop. Our goal is to get your vehicle fixed and safely back on the road, and prevent future failures through proper maintenance. We're trusted in Corvallis since 1991.