[Overdrive]

I agree with Randall. I'd rather have a dipstick so I don't have to rely on a gauge that can fail.

Also keep in mind that if you're not on level ground when parked this can very easily throw off what the gauge reads.

There have been times where I end up starting the car and shutting off after only a short time. I figure the large amount of time that can result from that is as explained above. A bunch of oil just got splashed around and hasn't really gotten a full cycle. It's going to take a good long while for it all to drip back down for an accurate reading.