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which one sucks which blows pardon the pun but im confused re oil in breath <img src="/forums/images/graemlins/confused.gif" alt="" />er big jim help me please


Think about it this way. Atmospheric pressure at sea level is 14.7 psia, so anything that has a higher pressure than 14.7 psia will be a ôpositiveö pressure, or will ôblowö. Anything less than 14.7 psia will be a ônegativeö pressure, or a vacuum, and will ôsuckö. The other thing to think about too, is when you fill up your tires, you are looking at a gage pressure and not an absolute pressure. Hopefully this helps.

Sean

99 XJ Sport 2 Door, 4.0L, 5 speed, all stock. Daily Driver
79 F150 Standard Cab Short Box, 400ci, NP435, NP205, 35" SSRs