Smittybilt 2.54 CFM 12V Heavy Duty Air Compressor for Off-Road Vehicles & Tires - Perfect for Jeep, Truck, SUV & ATV Inflation

I like to go back to some of my bigger purchases after a few years and revisit my review because so often reviews are written just weeks or days after purchase and do not reflect durability of a product, especially of that product has moving parts, motors, etc. I purchased this compressor in summer of 2018 and have had it for over four years and it is still working great.We've got a Rubicon with 34" tires, and a Subaru, both of which see a good amount of off-roading, overlanding and beach driving, a fair amount of airing down and airing up. We are also a family of five with bicycles, camping air mattresses, etc.I have to say I am very happy with it and it is working great after a good amount of use for more than three years. It has been in dust, sand, mud and rain. It has aired up 12 large mud terrain tires with a cool down of about five minutes between each vehicle (all but very huge compressors need this) with no problem. even with its 66% duty cycle (pressurizing 2/3 of the time , actively cooling 1/3 of the time), it takes my 33s from 16psi to 38psi in a couple of minutes. After three years of using it around 100 times and a total of a couple hundred tire inflations, (we beach drive on vacation in NC and Va. soft sand a few weeks a year and air down and up up to two times a day) the apparent CFM has not fallen. I have found that this will handle tires of pals with 35s and 37s, although I give it five minutes cooling after two tires in that case instead of after four tires.Pros:- Good 2.5 CFM/2 CFM@30 PSI. That 2CFM@30PSI is a about 85% of the 2.3 CFM at 30 PSI of the nearly triple price ARB- CKMA12 tests out on various Youtubes that these these pumps- Over four years and air up of over 100 tires and it is running great- Plenty of CFM for up to 35, will do 37s if you are patient- Kit has everything you need out of the box, and you can make minor improvements if you likeCons (they are minor):- Hose fittings are not proprietary but are Japanese standard. This has not been an issue for us. if I ever need to replace one fitting I will just replace them all, converting them to standard for about ten to fifteen bucks.- The gauge is not accurate when pump is running. This is the case with most portable compressors I have seen. The reason is that when pump is running it is measuring the pulse/pressor from the compressor (just like your battery charger maybe sending 5.5 volts to your five volt battery, which in turn is really 3.7v) , not the tire. If you switch off the pump when it comes up to a near indicated range you want, and then look at reading, will be accurate. Overall this is safer, the gauge does not read low, which would be dangerous (showing 35 when it is actually 50). Gauge is accurate if you are using it as a deflator (more important) without the pump running if you don't have screw on deflators