Tire Pressure Gauge

[Griffoun]

Which type of tire gauge is more accuarate? I have the stick-type, and I tried an electornic one from a friend of mine, but the numbers between them aren't close. My wife has a Nissan Murano which has tire pressure monitor built-in, and again, different numbers.

I've read many threads in this forum about tire pressure monitor on bimmers. I believe they're not standard on 2000 E46 coupe, right? (At least that's what the manual says)

[Pinecone]

BMW uses two different types of systems. One just uses teh ABS wheel speed sensors to tell if one corner seems to be turning more than the others on a regualr basis. Does NOT detect all 4 tires low at once. The other uses actual wheel pressure transducer.

Stick types are notoriously inaccurate. Digital types tend to be more so, unless you drop them.

I use a Longacre 3 1/4" dial type for serious work.

http://www.ogracing.com/eshop/itemdetail.asp?ses=397cdwb8gmn3oyu29v&itemid=271&showbrake=1