even if it's 'wrong' the same formula is applied in all cases. It's never going to be exact, so it should be taken with a grain of salt...
Later
If you need Z32/Z33 work done in the Dallas/Ft. Worth area, I've done most everything from oil changes to engine rebuilds. E-mail me for a quote please.
When was the last time you *really* did something with your Z to call yourself a Z enthusiast?