Since I've owned my GT500, if I start my car early in the morning when it's really cold, I'll often have to turn it over for 20 seconds, waiting for the oil pressure to go up on the gauge before it starts. Next time it starts or when it's warmer the first time I start it, it catches pretty quickly. The starter never grinds or freewheels, and always engages the engine immediately, just takes time to catch.
Over the past few weeks, it hasn't been cold, and I've noticed that I have to crank it over for at least 10 seconds (again waiting for the pressure to go up) every time I start it. It always ends up starting, but it's quickly become annoying.
Has anyone else run into this?