Hey everybody!! I recently purchased a 2006 g35 6mt 2 months ago. It currently has 27,000 miles. The problem I'm having with my car is the rpm. Whenever I have the car in gear and accel, the rpm jumps and the speed tends to remain the same. I could be driving on the highway in 6th gear at 65mph and decide I want to increase my speed to 70, the rpm spikes up and the speed remains the same or increase by 1-3mph. Didn't know if it was a problem with the throttle, clutch, or the clutch release bearing/fork. I've tried searching for similar posts but couldn't find any that matched the problem I am facing. Every advice/diagnosis will be greatly appreciated. Also, if anybody knows of any mechanical shops in the northern California area please post! Thanks for reading!

Don't you have powertrain warranty coverage left?

Heath