Starting P3 for the six-hour race, Lucas’ BMW Team RLL co-driver John Edwards (who qualified) was first in the #100 car and took the lead on the opening lap, but fell back to third as his tyres deteriorated.
Further ground was lost at John’s first pit stop due to problems with a wheel gun. After completing his double stint, the American then handed the car over to Lucas.
The 2011 FIA GT1 champion completed two stints before John returned to the wheel for another double. With 50 minutes remaining, Lucas took over and had a lot to do following another troubled pit stop.
However, with several yellow flags during his final run, the 2012 overall winner at the Glen could not make up any places, and despite having very strong pace in the closing stage, Luhr crossed the line to finish eighth.
The focus now turns to the Canadian Tire Motorsport Park (July 8-10) for round seven, where Lucas will be hoping to rekindle his championship charge.
“For sure it was very frustrating,” Luhr said. “Basically the season is continuing like it started and it seems we cannot get a break.
“In the middle stint we didn’t have the fastest car, but then twice there was something wrong at the pit stop, so on two occasions we were dead last. At the end the car was quick, but from back there you cannot really fight.
“At least our sister car got a podium so that is good for them, but we just need to keep on pushing, keep on fighting and hopefully one day the mishaps will end.”