SG2 Ultra Compact 3-in-1 Automotive Computer with Customizable Real-Time Fuel Economy Digital Gauges for OBD2 Vehicles

The device itself does not make any changes to your vehicle to improve fuel mileage. What it WILL do is show you how much fuel you are using based on your current driving habits. If you are willing to make changes to the way you drive based on the feedback this device provides, you might just experience some impressive increases in fuel economy. Some vehicle models come from the factory with trip/mileage computers and for those vehicles this gauge MIGHT be redundant UNLESS you might also be interested in some of the other parameters this gauge might measure. One parameter in particular might be transmission temperature for those who tow and have automatic transmissions. Before you order, it would be a good idea to contact the Scangauge folks in Mesa, Az to see if this device will function with your model vehicle for parameters in which you are interested. I run this device on 2 different vehicles: 1) 1999 F250 Superduty with the 7.3l Powerstroke and 2) a 2004 Subaru Forester 2.5x with a 5sp manual transmission. To switch vehicles, engine displacement, size of the fuel tank and type of fuel have to be changed. Easy enough. The unit can give you bit of a headache setting it up, but after you've done it a few times, it really is a piece of cake. The tougher part can be setting up the XGauge, which allows you to program the device to read certain parameters that your OBDII computer might be monitoring. It is important to note that not all vehicles will have sensors installed that will provide the data to the Scanguage. Also, the commands provided just might not work on all vehicles. However, there should be few problems measuring parameters associated with fuel economy. Most of our driving could be considered a rural 35 mile commute to town. The Subaru gets that duty. Prior to using the Scangauge, we were getting a solid 27-28 mpg on our Subaru. We were really kind of pleased with that. After hooking the SG up and inputting some necessary information for our engine size, etc., it pretty much sustained what we already knew by calculating fuel consumption the old-fashioned way. But then we started using the feedback from the Scangauge to adjust how much throttle we were applying under certain conditions. This is where it gets good. The feedback is instantaneous, so you don't have to wait til the next fillup to see how well you did. I had always believed that better fuel mileage could be obtained by shifting to a lower gear and not using as much throttle to go up a hill. The Scanguage showed me that was not always true and that it was sometimes best to stay in the taller gear as long as you don't lug the engine. I also decided that if there was no traffic bearing down on me, I would take A LOT longer to accelerate to reach highway speeds. The same went for slowing down. With no traffic behind me, I could take A LOT longer to DECELERATE making full use of engine compression to slow the vehicle down. Not only did our fuel economy improve to 31-32 mpg (14.3% better!), but I'm also still on the ORIGINAL brake pads...coming up on 135,000 miles! I've done a LOT of driving in my time, much of it on the autobahns of Germany for 10 years and I know brakes. I still have 25% of the original brake pad material available which could conceivably put me at 168,000 miles before I do my first brake job on this car! Not only are the pads not wearing, but the discs look pretty good, too! On the Powerstroke, results were even better. I was seeing an average of 13 mpg and that improved 23% to 16 mpg average for a local 12 mile round trips. On trips to the mountains I can get 18 mpg. Also, the Scangauge keeps me informed on my transmission fluid temperature when towing our 5th wheel trailer. I had also hoped that the Scangauge would provide information on torque at the torque converter (CTQ), Torque Converter Line Pressure (LPC), and Torque Converter Speed Ratio (SLP), but my truck does not have sensors for those parameters. I also learned with the gallons per hour (GPH) feature that this truck would burn .6+ GPH sitting at a stop light with the transmission in D. By shifting into N, consumption dropped to .43 GPH, a 31% savings. The display can be set to show 4 parameters at once. In summary, after you drive with this device for a while, you are likely to change the way you drive. These changes can become so well ingrained that you might find that you will maintain your fuel economy, even after you remove the device and put it in another vehicle. This device does a few other things as well, so look the literature over and remember to contact the company to see if it will work for your intended application if you intend to use for more than just monitoring fuel econmomy. The Scangauge II isn't for everybody. Folks who are not technically inclined might find it a bit laborious to set up and may not really be interested in the information it provides. Also, if you are already an experienced "hypermiler", you might have already honed your driving skills to the point where you might not see much improvement in fuel economy. You might even already own one of these! It is easy to fault this device for a somewhat laboriously techie setup, etc. But, as you use it, you begin to appreciate the thought that went into it. There is only so much you can put into a small package and still make this thing useful and fit in the cockpit of your car. But really, once it is setup, you really don't have to fool with it anymore. Changing vehicles is simple. It has already paid for itself in the first 3 months. It gets 5 stars from me.

This is a nifty little device that attaches to your vehicle's OBDII port under the dash. It is adaptable to most vehicles (visit Scangauge's website to be sure yours is on the list). Interestingly, it interfaces via an ethernet port. I used it on a Ford Taurus, A Mercury Grand Marquis, and a Dodge Caravan. Yes, it displays real time MPG data. It also gives you the average time weighted average MPG. RPM, MPH,and TPS data- no problem. Coolant temperature, Ditto. Manifold absolute pressure depends on the vehicle. Same with intake air temperature. It does not give the actual O2 sensor reading, only if the loop is closed or open. It will definitely teach you skills to improve your fuel economy. Surprisingly, the larger your engine the better you will do because you can take advantage of low rpm high torque situations. I got 29.1 MPG with my Grand Mark using it (Averaged over 65 miles in city, highway and country backroads passing Amish Buggies) Philadelphia to Lancaster, PA. I would have given it 5 stars but the materials it is made with are lightweight and I'm not sure if it will stand the test of time. It is a very useful gadget, and it is a shame we can't hook it up to a laptop to send the data to the state DOT to pass emissions inspection. I suggest ScanGauge look into this, it would probably only take a software upgrade, I know the hardware is up to task. I also suggest they encase it in shockproof rubber to protect it. This is a follow up review 5000 miles out from the last review. I revised the unit to 5 stars. Its durability has proven the test of time and jockeying between 3 vehicles. It sits nicely above the wheel of my V8 Grand Marquis with no significant dash obstruction. It maves easily from vehicle to vehicle an is capable of taking a hit bere or there. It would still be nice to have a shockproof rubber case but I upped my rating to 5 stars both because it held up well and it helped me average between 24-28 MPG country in my Grand Mark. It paid for itself in gasoline already. Anything more is gravy now. The only thing I suggest is a list of OBD codes to go with the unit. It is no longer as easy to find them using google because the mechanics and auto makers want to keep this information proprietary. Google OBD and the first 50 entries are either discussion boards, parts suppliers, or sensor makers. The same happens when you seek out a specific code. You have to dig but you can find what they mean. A list would be nice.

I don't leave many product reviews. This unit and support are exceptional. Installation is a piece of cake. If you can plug in a toaster, you can install this. No tools required. Most of the menu is completely intuitive. No need to read instructions...just scroll through and select what you want (like color and brightness of display). There is a huge menu of data you can monitor, based on your car. You may have to input a code (listed under your car type on the ScanGuage website)...but this is just directly entered into the unit (while it's installed) by pushing buttons. VERY EASY! I have a hybrid, and am planning to tow with it. I can monitor 3 different inverter coolant probes !! I can monitor anything I want...huge menu of items and display whatever four items I want to monitor. BEST THING OF ALL: This is a product where they answer the phone and answer your questions, very nicely. There is a terrific video of exactly how to do everything you want, but if you want to ask a person, they answer the phone and help you !! From Arizona!! I've run a lot of systems to monitor parameters in airplanes (cylinder head temperatures, exhaust gas temperatures, etc, etc)...This is on par with aircraft systems !! PLUS it reads and clears OBD-II Maintenance codes !! Amazing. You will absolutely not be disappointed in this unit, ease of installation, ease of programming, ease of use. And it dims down to low levels (which I particularly like) and can have amber or red screen to save night vision (or any color you want!) Really well thought-out unit and having US phone support is outstanding.

Wow! I love this gauge! There are numerous parameters that can be checked on the fly with 4 parameters up on the screen in real time. The screen color can be changed with several colors or make your own colors if you want. It's just about the perfect size and is very user friendly as well are the manuals included. I have a 2009 kia optima lx 5 speed manual gearbox and I love seeing my mpg skyrocket as I coast to stopsigns and coast in neutral downhill! I have become more cautious when driving and I use the hills to my advantage. I accelerate more deliberate due to increased fuel savings. This gauge has already saved me alot of money as I drive 90 miles round trip each day for work. I averaged 34.1 mpg which is up from 27ish! In short, you need to not hesitate and buy this as you will save a ton of $$$$ in fuel as this gauge provides you with the feedback you need to increase your mileage, of course, that's only if you are looking to decrease your petrol consumption like I am. Some good tips for increasing mileage are: get your alignment checked ( toe in, camber) as this is significant, not only will it save in fuel consumption but it will keep your tires from prematurely wearing out. Tire pressure check drivers side door jamb use recommended pressure or 10-15% higher. No flooring of the gas pedal! Coast to stop signs and down hills as these two really help. Check the condition of your air filter, engine oil and oil filter. Keep your car maintained as it will operate more efficiently. Buy yourself a Haynes manual specific for your car and learn how to do your own maintenance. It's fun, it saves money, and it is very satisfying to perform it yourself, if your able to. No extra weight in your car (trunk) Keep rpms around 2000 no more than 3000, unless your merging. No jack rabbit starts and no racing! If you have to pass try to do it either downhill or flat land- no uphill passing. Do not press much harder on the gas pedal going up hills- try to increase speed before you climb hill so that you by the top of the hill you are going 10-15 mph slower. This takes anticipation and practice. Cold air intakes decrease mileage but they increase horsepower, generally. Warm air increases mileage and efficiency. Look into a lightweight crankshaft pulley and a piggyback ecu for increasing economy. Also if you don't mind some extra noise, replace your muffler with a turbo muffler as this will decrease back pressure and should give your car a few extra ponies. If you have a bike rack or shopping cart bolted to yer trunk lid remove it- yer not racing in the CanAm. These increase your coefficient of drag. Experiment, experiment, experiment! Only you know your car best. Try new things with your gauge try new driving styles to see how driving fast and racing just causes your wallet to get thinner and thinner. Hey it's your hard earned money, keep what you can of it. I'm sure I forgot some things but this should give you a great head start in saving money and most important the environment and our resources! Good luck to you! Update : 10/13/2025 Incredible. I still have this same ScanGauge now in my 2021 Kia Forte LXS with 2.0 mpi and IVT trans. Yes, l get 48 - 52 mpg on highway trips and low to mid 40's for everything else. It's a game folks, pay attention and learn from it and this gauge will more than pay for itself over time. I know a guy with a Hyundai Elantra hybrid and l tie or best him in fuel economy......all without the hassle of his car's complexity. I'm pretty sure Napoleon Dynamite would say " l got skills " , not computer hacking skills or nunchuk skills, but FE skills 😆

I came to know about this tool when I was browsing the web for finding the details how to look for Hybrid Battery temperature on my recently acquired used 2006 Ford Escape Hybrid. The forum suggested to their members that ScanGauge II would be the ideal choice to monitor the Motor Electronics Coolant Temp (MeC) and HV Battery temperature (Traction Battery Temp). I am pleased to inform that this tool can be configured with Ford Specific XGauges (See comments) to achieve that feat pretty easily. Ford Escape Hybrid (With Navigation) does have host of other real-time display like HV battery SOC real-time MPG on the dash but FORD hides most of the stuff from user which are needed to troubleshoot common check engine light errors and in my case why my FORD escape Hybrid sometimes decides not to turn off the Internal combustion engine (ICE) and keeps running the Radiator FANs when it should not. It baffled me for couple of weeks and led me to investigate the issue further. After setting this tool up and monitoring it for several days I could see a pattern that there are two main reason why the ICE would not shut down at idle or at a stop light. They were primarily due to 'over-temp' condition of the Motor Electronics Coolant temperature caused by a weak MCE coolant pump in conjunction with the HV battery Traction battery temperature. Replacing the nearly failed original 2006 Motor electronics Coolant Pump at 98,XXX miles (FORD OEM PART number 5M6Z-8C419-A) It did help in cooling the Motor electronics coolant temperature a little bit however the traction battery FANS are still an issue which I am continuing to investigate using this Automotive computer Gauge. FYI, There is a disturbing trend in these line of 2005-2007 FORD Escape hybrid vehicles that calls for Air-Conditioning compressor to turn ON as soon as the HV battery temp reaches 95 to 96.8 F to cool the battery using the rear air-conditioning contraption by opening the blend door and what not but as your car ages the Internal two fans housed inside the HV battery tends to fail slowly (without actually flagging any DTC codes) and thereby no matter how much AC compressor works hard (Only with ICE running) it cannot cool the HV battery enough to go under 94F for the ICE to stop at idle or at a STOP sign. It is winter here in California and thanks for mother nature my HV battery rarely calls for cooling for most of the stop and go traffic and I still have not ventured to replace the two Internal HV battery FANs (FORD OEM PART 5M6Z-10C659-A) on my Ford Escape Hybrid but I do closely monitor the temperatures using this valuable tool. Bottom line: An excellent tool to have for any gasoline or diesel engines for real-time MPG and RPM readings as well as read understand and clear (Check Engine Light) DTC codes. Well worth the price as it pay for itself in less than a year if you come across a check engine light and could decode yourself and clear it. Or just by using this tool to carefully change your driving habits and improving the gas mileage. I am amazed how crazy some drivers are who accelerate hard cut in front of you, overtake you just to stop in front of you at a STOP Light. Did you know how much Gas you could save just by decelerating slowly and watch for the traffic pattern ahead of you? - You can save nearly 30% of your gas tank not to mention less wear and tear of you brakes and other stuff when you learn to drive less aggressively. Drive safe!, Drive intelligently and save on gas! Cheers!

I'm by no means a power-user of this device, as there's quite a bit more it can do than what I utilize it for (measuring performance runs, entering in parameters to display more specific, proprietary data across the communication line for a variety of vehicles). I'm basically just using this to fill in the blanks that are left by my car's lackluster dashboard. No voltage readout, no coolant temp readout, and of course no boost readout. The hardest part about setting this thing up right out of the box was being careful to not cut my finger off opening the frustration-full blister pack with a very "As Seen On TV" vibe about it. It's easy to mistake this for a gimmicky doo-dad, which seems like a mismatch with its somewhat techy nature and mode of operations for the more advanced features; this product is trying to be for everyone and expects a level of aptitude and attention inconsistent with how the bright and wanky brightly printed cardboard make it appear. Just an observation, not really a complaint. It's OLD. I bought one of these over 11 years ago for my previous car but it got lost in the shuffle of life. I think an old friend ended up with it. At the time it was a rather desirable tool that people frequently wanted to use for one purpose or another. Here we are over a decade later and there's still no ScanGauge III, just the exact same black plastic 5-buttoned box with a crumby little screen that boasts the largest pixels ever made, and two RJ-45 jacks. Why not refresh it? Because the damn thing works. You're paying for the firmware and what I infer to be the quality of the components inside, and not for a "HD" 100% sRGB color gamut display. It's a bland little box, which is probably good since it'll be sitting in your car in plain view. So why buy this? I already have some CHEAP knock-off bluetooth OBD II adapter that works with Torque, which I long ago paid for from the Google Play store and that arguably does EVERYTHING this does, and more, without the need to enter in x-codes manually for parameters not available out of the gate. Robustness. With this, I don't need to have my phone tied up serving as a gauge. I don't need to worry about bluetooth not connecting right away or waiting for anything to initialize. I get a nice simple matte display to look at vs a busy glossy display that's not in an ideal position. Sometimes it's nice to have dedicated devices for some tasks, vs trying to use one device to do everything all at once, all the time. To be clear, I paid for this thing. Twice. Combined $300. I've never contacted the company who made this thing for support or any other reason and am certainly not shilling it, at least not with any kind of benefit to myself in exchange. I just really like a well-executed, reliable product that does exactly what it's supposed to do. It's about as simple as they could possibly make it. Which leads me to... It's maybe too simple. The physical device is a limitation to some functionality, to a degree, until you understand its language. I'd love a display with MORE pixels, capable of displaying more lines of text, or maybe even graphics, though I'd like to see it kept monochrome. Maybe invert it so the pixels emit the color specified vs the backlight with black text. Perhaps a jog wheel on the edge to scroll through stuff. Pretty annoying that I have to press the button over and over to get back to the one setting I'd like to look at most of the time, if I decide to change it for a moment. Why not have the option to REMOVE parameters I'll never look at, at the very least, to save time when getting back to what I want to view. My cluster actually has a useful trip computer, so all of those are redundant. Thing is, this could quickly turn from a robust, simple tool into a gadgety doo-dad in no time if people like me were allowed to chime in with product ideas, which would also send the price through the roof, so I understand the limitations and constraints; it feels a bit like paying over $120 for a graphing calculator, though, even though you know in the back of your head it cost them like $8 to make the damn thing. Would I buy it AGAIN if they introduced a device with very similar functionality and reliability, that's easier to operate, in a form-factor that's from this century? Great question. Make one and we'll find out.

This is a great little device. I had been wanting one of the code-readers for my car for a while to debug problems when they come up and just never got around to it. I came across Scanguage, read up on it, and gave it a try. Basically you get the code-reading plus the extras of engine/vehicle information on the fly for just a little more than a normal handheld scanner/code-reader. Some of the info really doesn't matter unless you're specifically looking for it. Coolant temperature, for example - unless you've recently done some work on your radiator, thermostat, or water pump you probably won't care about it. Even then, you can pretty much tell what you need looking at the on-dash temperature guage. All you really care about is, "Is it in the red?" Still, it's kind of cool that the information is there and if that gauge is broke this could fill in. Outside of the engine status you do get trip information which can be useful when you're traveling down the road. The way that the Scanguage handles it really makes the most sense for most people. You get trip info based on: most recent trip, today's data, yesterday's data, or tank data. It resets this all of this automatically based on some pretty common-sense parameters. The only input you really need to provide is when you fillup your tank. You can easily take the trip data, which is normally shown as one-item-per-screen in the trip-section and show it listed in one of the 4-gauge-per-screen sections using XGauge. It's pretty easy to set it up. The worst part is trying to come up with 3-character codes to show the difference between them. For example, you already get real-time MPG. If you set up an extra gauge (XGauge) for MPG based on trip, today, yesterday, or tank, then you'll need to come up with a 3-character code to differentiate them (you don't have to, I think it'll take MPG all three times but then how would you, as the user, know which is which). The box isn't very big but if you velcro it to the front of your dash it's going to stick out a little. You could place it on the steering column up by the instrument panel or, if you do Google 'Blendmount' you'll find that you can attach it to your rear-view mirror which is what I did. Looks nice, out of the way, and doesn't interfere (get in the way/block) any of my normal gauges. As others have said, I'd recommend going through the settings for engine/tank size and doing that first tank-calibration just so that all of your data is accurate. You do it once and forget it. What it really boils down to is that it's a great trip-computer that has a bonus of being able to tell you some other information about your engine or service-engine codes (and reset them) and the install is minimal as you just plug it in and route the wire.

I used it to monitor the tranmission fluid temp on my tacoma 2022 to pull a 4500lbs camper thru a few states and i was so much more confident it was easy to use and compatible with my 3rd gen 2022 tacoma

Strumento completo e intuitivo, ottimo per tenere sotto controllo i parametri più sensibili su automobili un po' datate

Awesome. Just as advertised.

Habe das Teil bei Youtube im Kanal von Rene Kreher gesehen. Habe schoo so ein Teil das man per Bluetooth mit dem Smartphone verbindet. Das Teil ist für mich aber besser. Habe es fest mit Klebstreifen in der Mittelkonsole in einer Ablage eingebaut. Nachteil ist das ich jetzt die Verkleidung die über den Sicherungskasten ist nicht mehr anbringen kann, was mich aber überhaupt nicht stört. Bedienung ist relativ einfach. Man kann damit auch Fehlercodes löschen. Leider kann ich bei meinem VW Caddy den Fehlercode für Airbag nicht löschen. Das Gerät zeigt keinen Fehler an. Das andere Teil das per Smartphone angeschlossen wird zeigt aber auch keine Fehler . Es gibt wohl Fehlercodes die sich mit solchen Geräte nicht löschen lassen und man zur Werkstatt muss. Ich bin aber kein Experte auf dem Gebiet Bisher gibt es nichts negatives zu sagen, deshalb volle Punktzahl.

This product has already paid for itself. I have diagnosed two problems, not serious, which puts my mind at rest, and this has made it possible to remedy them with no dealer costs involved. The engine lights are reset and this has saved at least £40. I have also helped friends with their engine light/ engine managment problems. The biggest problem, when using it on different cars is finding the OBD2 connectors, but a quick google search will generaly help find the location. I appreciate that there are apps on the market for a fraction of the cost, and these are no doubt useful for some users and will get identical results. However, anyone considering buying a smartphone app should bare a couple of points in mind. These are the reasons I opted for the ScanGauge:- I wanted the option of a hard wired Gauge. I use bluetooth hands free on my phone so did not want any conflict. The phone apps all use Bluetooth connection. Obviously this will also drain phone battery. I also use my phone on occasion as a sat nav, so there would be another conflict. One of the primary reasons for the Gauge is to help with driving economy. I usually get the best mpg out of my cars, but every little helps! So I want to be able to see at a glance exactly what I am doing at any point, and not have to worry about turning on an app every time I get in and out of the car. The next point probably relates to my phone, ( I have a Samsung Galaxy s3) If this is turned on with screen on, and on charge, it does not take long for it to start overheating. So again a good reason to use this above my phone. So, on the whole, this is a great device. The only way it could be made better is by building some sort of control into it that could allow fine tunning of the ECU, within set perameters, but that may be lost on many. It is every bit as good as expected. I would recommend anyone taking the above into consideration, to buy one of these!

This item was plugged in and worked immediately. There is plenty of support on the internet but easily fitted and programmed. The only issue I have is the Velcro back not sticking well to the spot on the dash I selected