what you guys think about the Fram hp1 racing filter? I was running 10-40w motor
oil for the first 800miles then changed to 20-50valvoline vr racing. I change the
oil every 500 miles, and fill the tank with atleast 5gallons of racing fuel call me crazy. The other thing I learned is that lot of the guys who are attending racing events, are changing their
oil from 20-50 to heavier weight 10-40 or 10-50. Got to ask my engine builder when to change to
synthentic