A shop would probably charge you $25 dollars to calibrate so run it like Joe suggest. For me I lucked out and dropped by the guage resto shop close by and he calibrated mine for me..... he was not "in the back" less than 5 minutes total and brought it back. I suppose its simply if you have the equipment!!
EDIT: I did this on my 37 but kept the "original" guages for looks. This means when my guage says 15 or 30 lbs the oil pressure is actually double that at 30/60.
On my panel I had it calibrated and used the 60 lb decal on the face of my guage.
Last edited by Achipmunk; 04/23/2010 3:55 PM.
