why every 2500 i would of thought more like every 4500
A quote from the Vortech installation manual.
Perform an oil and filter change upon completion of this installation and prior to test driving your vehicle.
Thereafter, always use a high grade SF rated engine oil or a high quality synthetic, and change the oil and filter at
least every 3,000 miles.
Never attempt to extend the oil change interval beyond 3,000 miles, regardless of
oil manufacturer’s claims as potential damage to the supercharger may result.