I am new to the Pathfinder group! Just got an 88 Pathfinder 5-SPD V-6. I have an optima installed but it has a massive drain on it. The Alternator is very suspect, it varies too much in voltage and seems as though the voltage regulator is gone! I have heard of it before on other vehicles, could this be my drain? I am trying to get a heads up before I start diagnosing this vehicle. I have only had it for 2 days, so any input would be very welcome!