Auto Meter 9105 ecometer Fuel Consumption Gauge

Product works well. I have been using it for the last 3 months on my 2008 Honda Odyssey minivan and have put a few thousand miles on it. Correction factor of 0.93 or 0.94 seems to work for me.It showed me which trips were most wasteful on gas (I was getting single-digit mpg average in the city where I live), allowing me to replace those with bike/scooter/transit.It also showed me that disabling Honda VCM on my engine did not greatly worsen mpg, and was well worth it, for addressing high oil consumption, fouling of both catalytic converters, and non-smooth driving.Also helps as a reminder to keep the speed down on the freeway, as mpg starts decreasing rapidly above a certain speed (or if there is a strong headwind) that makes the little bit of time savings not worth the extra fuel burn.UI is a little confusing, but I keep the manual in my glovebox for reference.If you need more attachment strips, it's 3M Dual-Lock, also purchasable as "Scotch Extreme" fasteners.

Do wish it was a little bigger but it's pretty accurate for rpm, and mpg lights up decently

2012 Tacoma 4.0 liter. This gage is quite accurate after carefully tracking the mileage and adjusting the Efficiency calibration number (follow instructions closely). This thing gives you a great feel for how much gas your using at all times and during all conditions. Great tool for the money. It took me about 6-7 tanks of gas to get it dialed in. I've been using the exact same gas pump for consistency. The most recent tank I had the Efficiency setting set on 91. The miles were 245.4 used 14.71 gallons = 16.68 mpg. The Ecometer said 16.7 mpg. The farther you run your tank down, the more accurate the data. Don't expect to get the calibration perfect within 2-3 tanks like the instructions say but that's to be expected with the accuracy. Great product. Highly recommended. I bought one for my son also.

I have 5 vehicles and I used this on all of them. The immediate mpg part is somewhat accurate and if that the sole purpose for u buying this then cool, but as far as the average mpg is concerned, it was off by 8-10 mpg on my maverick ual acura rsx, says it was getting 16 mpg when I did the math and I was getting 28mpg, all my sensors work and have zero check engine lights on any cars I tried this on. My work van was off by 2mpg, tacoma was off by 5mpg.....goes on and on. Point is, if u want an accurate mpg average just track ur fill up and wait till u see it hit gas light and do the math. This was a massive waste of time and money in my opnion. This company has always made accurate gauges for racing so I don't know why they phoned this one in.....sad really. Mabye I just got one made on a friday......will be returning 100%

GREAT VALUE FOR MONEY, I COULDNT FIND A WAY TO MAKE THIS WORK IN MY TRUCK WITHOUT MASSIVE MODIFICATIONS BUT VERY NICE QUALITY. VERY FAST SHIPPING, AMAZING CUSTOMER SERVICE THANK YOU.