DVM Smog Check Test Only operates a BAR-registered, STAR-certified test lane at 6140 Mission Gorge Road, Suite B, in Grantville, San Diego 92120, under Automotive Repair Dealer registration ARD #234433. Owner Travis C. Nguyen runs the station as a test-only facility, meaning it performs California-mandated emissions testing but does not sell repair services — a structural separation that eliminates any financial incentive to fail a vehicle and upsell a fix. STAR certification authorizes the station to process DMV-directed vehicles, gross-polluter referrals, and change-of-ownership smog checks that non-STAR facilities cannot legally handle. Mission Gorge Road through Grantville runs north toward Mission San Diego de Alcala and the Mission Trails Regional Park trailhead, and the station's midpoint address catches registration-renewal traffic from the 92120 ZIP alongside the fueling stops at Sinclair Gas Station one block south. Testing covers passenger cars, SUVs, vans, trucks, recreational vehicles, and motorhomes, using BAR-97 five-gas analyzers and OBD-II data-stream readers calibrated to CARB standards for each model year and engine family. Vehicles that fail the initial tailpipe or OBD-II readiness check receive a printed diagnostic report identifying the specific failure codes and test parameters that fell outside limits. A free re-test policy applies to vehicles that return after repair, eliminating the double-fee penalty that test-and-repair combination shops sometimes impose. Turnaround time runs under 30 minutes for a standard tailpipe-and-OBD-II cycle, and the station transmits passing results to the DMV electronically so owners can complete registration renewal online the same day. Drivers whose vehicles require multi-day repair work after a failed test can arrange short-term transportation through Safi Cars Rental in Grantville while the catalytic or ignition-system fault is addressed at a separate repair facility. The five-gas analyzer bench reads hydrocarbons, carbon monoxide, carbon dioxide, oxygen, and nitrogen oxides simultaneously, providing a complete combustion-efficiency profile that pinpoints whether a failure originates in the fuel system, ignition timing, or catalytic converter.