SoCal enthusiasts beware: Someone is pouring oil across the two lanes of Glendora Mountain Road in the Southern California hills.

Sizeable slicks have appeared in several locations on the mountain highway over the last month. The road is popular with everyone from sports car drivers to motorcyclists to bicycle riders. Oil poured across the lanes poses a potentially deadly hazard to anyone travelling at great speed, as many motoring and motorcycling enthusiasts sometimes do on that road.

Videos posted online point to a red SUV that appears at the same spots where the poured oil subsequently shows up. You can even make out the SUV’s license plate number. The California Highway Patrol has contacted the owner of the SUV, who has denied involvement. As of today there have been no arrests, according to California Highway Patrol investigators. Two GMR car crashes that had been attributed on internet sites to the oil patches could not be confirmed or linked to the oil by CHP investigators.

YouTube videographer and motorcyclist guser210 posted a video that convincingly links the presence of the red SUV to the oil. The recreational website glendoramtnroad.blogspot.com showed photos of three slicks on February 20.

The CHP is continuing the investigation and anyone with any information is asked to call them. In the meantime, be very careful up there.

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