Average Reviews:
(More customer reviews)My main purpose in purchasing this product was to monitor my fuel economy. This Watch Dog disappoints me with its ability to give fuel economy data. First off, this unit is small. I knew about the size because I contacted the company before I purchased it. They were kind enough to give me the specs. I could not find it listed in the sales literature. The data displayed on the left side is big and easy to read. The problem is that you cannot get average fuel economy to display in one of those boxes. You can get instant economy to display, but that is worthless. The only way you can get average economy is to turn on the "driving coach" This is a program that monitors acceleration and braking and is meant to help you achieve maximum economy. On the bottom of the main screen under the "driving coach" you can see your average economy in 2 digits with no decimal point. The font is about a size 5. I have perfect 20/20 eyesight and can barely see it.
When you install this unit, it says to just plug it in to the OBD 2 port. If you turn off the key, it stays running. The literature says it will not suck much juice and will not be a problem unless you leave it sit for a long time. If you leave your car sit for weeks between uses, they give you a separate wire you can attach and connect to the ignition so that it only runs when the car is running. What they do not tell you is that your fuel economy drops to almost nothing if you do not shut it off between uses. I had to figure this out on my own. I attached the wire and it is working fine.
I am still calibrating this unit. The economy reading differs from my calculations. After a few more tanks of gas I hope to have it dialed in. It is not a plug and play item.
Most of the data that they say you can access, you can't. Like trans temp, oil pressure, exhaust temp etc are not available on my car. The only items that I can access that are worth monitoring are battery voltage and coolant temp.
In my opinion this is way over priced and not worth the money.
I contacted the company to see if they could reprogram the unit to display the average fuel economy in the larger area of the screen so I could actually read it. They never responded. Typical of a fly by night company to give you support before the sale and none after. Now I am stuck with this gauge and not happy with it. Do not waste your money on this monitor.
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Bully Dog 40402 Watch Dog Black Economy Monitor
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