Is DEF needed in the new Kubotas? DEF is used at a rate of 3% of the fuel used. you think EGR is bad now just wait and see whats comming in 3-4 years. The manufacturers can tune for low soot (particulate) or low NOx. In 1970 the Environmental Protection Agency (EPA) passed the Clean Air act with the goal of reducing air pollution from vehicles, machinery, and businesses. You wouldnt want to clean up the air by starting a fire. One important maintenance task that Kubota owners need to be aware of is diesel exhaust fluid (DEF) yes, Kubota tractors need DEF! For mine, the M8540 (85 HP), the EGR came with the "-1" model. Add Ons. The DEF system is required by law in some states, but not all. If you have a Kubota M5-111 tractor, you may be wondering if there is a way to delete the DEF system. That said, none of the LS tractors engines require diesel exhaust fluid (DEF) to meet EPA standards. Kubota's first import was in 1969 with the 21 horsepower L200. You dont have to worry about a gallon or two of the stuff turning bad or evaporating from disuse unless exposed to consistent hot climates. We use cookies to improve your experience on this website and so that ads you see online can be tailored to your online browsing interests. Even their 19-55HP series tractors are powered by EPA Tier-4 compliant Yanmar diesel engines. So how do you know if your Kubota tractor needs DEF? However, not every tractor manufacturer has embraced the EPA changes. At the 2014 New Product Intro, John Deere claimed fuel consumption (fuel + DEF) for these tractors to be a 2.0 percent improvement over the previous generation machines and up to 6.0 percent when equipped with e23 transmissions which maximize economy. When bringing their CTLs into Tier 4 Final compliance, IHI. There are many 2010 model-year ISB rigs that don't require DEF, and at least some 2011's. From what I understand, the lower output ISB (305 hp or less) could meet the EPA spec but in later years the 340 & 350 hp versions did not, so eventually they all went to SCR systems with DEF. The standard 32.5% solution of DEF will begin go crystallize and freeze at 12 F. The Urea and water in DEF, when mixed, will freeze at the same rate. Cylinder from surplus center and hoses from a local hydro company I use. However, this new innovation also comes with one key disadvantage that makes some tractor users somewhat sceptical. In addition to the improved fuel efficiency and reduced emissions from FT4 compliant engines, these powerplants are noticeably quieter. Lastly, when DPF filters require servicing the removal of ash remember, the EPA and California Air Resources Board (CARB) have labeled the residue a hazardous waste. There are many 2010 model-year ISB rigs that don't require DEF, and at least some 2011's. Kubota 75-100 horsepower series diesel engines were certified in September 2014 as Tier 4 final compliant. Stock Horsepower Stage 1 Horsepower (10% / 105hp) Stage 2 Horsepower (20% / 115hp) Tooling. Tier 1 standards for nonroad (off-road) machinery were first adopted in 1994 for engines over 50 HP and to be phased in from 1996 to 2000. But it does have a diesel particulate filter. Since the DEF (Diesel Exhaust Fluid) is introduced in the exhaust, also called after-treatment technology, the manufacturer is free to build as much power as they want. Since Kubota has announced that many of their midsize engines will be available without a Particulate filter next year does this mean that the current 60 series models will use those new engines when they are available? From what I understand, the lower output ISB (305 hp or less) could meet the EPA spec but in later years the 340 & 350 hp versions did not, so eventually they all went to SCR systems with DEF. #40Fan Active member Jul 21, 2022 157 87 28 USA Jan 2, 2023 #2 The smaller diesels are still allowed to be very dirty because they don't get a lot of hours and their total pollution is insignificant. (Mine is an M8540HD12-1.) Classified as Minimum Risk for Transportation. The DEF is stored in a separate tank which is insulated and heated and is marked by a blue filler cap.Still there are two factions of diesel guys out there; those who have accepted to the EPA changes and those who are still vehemently against any regulations whatsoever despite the work around technological advancements. DEF weighs about 9 lbs per gallon. The active ingredient in DEF, urea, has been chemically synthesized since 1828 first by German scientist Friedrich Whler after treating silver cyanate with ammonium chloride. New Holland tractors started using DEF in 2011 to meet governmental mission regulations. Temperatures above 86F (30C) will cause DEF to break down into ammonia, increasing pressure in the containers. The challenging solutions are in the larger diesels (not super large diesels - medium and large ag tractor size). When used correctly, DEF can help your Kubota tractor run more efficiently and produce fewer harmful emissions. When there's tough work to do, you can count on Bobcat loaders to get the job done. For those not willing to accept the changes there has been a shift to olderused diesel engines or remanufactured diesel enginesthat have been grandfathered in. When I asked the dealer about it they denied it and told me there wasn't any problem with Def deteriorating and causing problems. These are all nice improvements, though the cost and added complexity along with the added dealer investment in diagnosing equipment and employee training hardly make for a winning dollars and cents proposition. life is always better when you have the best compact , In last weeks Subcompact Tractor Comparison Part 1, T, Its no surprise the Mahindra 1500 series has been one of , Subcompact tractors, or SCUTs as they are often called, are . Far as I know only us (I work for Case and Case IH ) have the patent on SCR only technology. Again, we do not recommend deleting the DEF system unless you are absolutely sure that you will never need it and that it is legal in your state or country. The ramp-up to the point where tractors were required to use DEP has been gradual. Sep 10, 2020. The good news is, Kubota tractors use very little DEF. Urea can be irritating to eyes, skin and the respiratory tract but not life threatening. Established in 2009, we are the largest online community of Kubota tractor and equipment owners. So for every 100 gallons of diesel fuel an engine using SCR technology uses, it will also use 3 gallons of DEF. If the level drops below 5% (Empty level), engine RPM and torque will be reduced after 45 minutes. Quiet and decent on fuel. Do Kubota Tractors Need Def? Adding DEF is easy just pour it into the dedicated fill tank located next to the fuel tank (you can find its exact location in your owners manual). Just like the parent company, TYM, high-horsepower Rural King (RK) tractors are EPA tier 4 final compliant. Of course not. Depending on the configuration (cab, open station, horsepower rating) decreased sound levels of 10 dBA and more are not uncommon. While adding DEF may seem like an extra step in maintaining your Kubota tractor, its actually quite simple and will help keep your machine running smoothly for years to come. These changes seem to suck up a lot of engineering resources. To use all available functions on this website, JavaScript must be enabled in your browser. This regulation by Environmental Protection Agency (EPA) aimed at reducing air pollution as much as possible. For a better experience, please enable JavaScript in your browser before proceeding. Urea is mostly used in fertilizer for agricultural but also found the chemical industry, explosives, lotions, skin creams, hair removers, plastics, dish soaps and power fuel cells. How To Maintain A Compact Utility Tractor, Snow Removal: What Implement to Best Handle Winter. The new high-horsepower tractor engines that are equipped with SCR are programmed to stop working when your tractor runs out of DEF. SEE DEALERSHIP. I have tested a 135 hp Kubota tractor and it really uses little DEF unless under load. To be precise, only some of their PX series use DEF fluid. All diesel engine manufacturersare now required by the EPA to integrate some tiered warning system (internal gauges on the dash) to let the driver know exactly how close to empty the DEF tank is. This is required because the DEF flow also cools the DEF injector in the SCR muffler. If youre experiencing any of these issues, its best to take your tractor to a qualified mechanic for servicing. Heat from the engine warms the DEF in its storage tank, which allows the engine to perform properly within the EPA regulated time of 30 minutes after the engine starts. MANUFACTURERS Monday-Friday 7:30-5:00 It is important to understand if you dont refill an empty DEF tank the engine will automatically shut down. For example, the Kubota RTV 900 uses hydraulic oil, while the Kubota BX23S uses diesel fuel. The pros are better fuel economy, increased horsepower, more optimized combustion, fewer regenerations issues, less wear on the engine and in addition it only releases nitrogen and water vapor into the air. DEF is 65 percent purified water and 35 percent urea (expect slight variances in formulations from manufacturer to manufacturer in the attempt to provide the lowest possible freeze point) and creates a chemical reaction converting the exhaust into water vapor and nitrogen. The fuel system lines are not compatible with DEF and slowly corrode and over time. diesel exhaust fluid (DEF) tank, the SVL95-2s can run a full eight to 10 hour workday without needing to refuel and a four to five day workweek before a DEF tank . The PTO may not engage properly due to worn out clutch plates. Fuel mileage can be improved by as much as 5%-7%. However, these lower horsepower engines dont require DEF to meet EPA regulations. NOx has been blamed for smog, a rise in greenhouse gasses and acid rain. KX057-5. DEF is found at most major truck stops, auto parts stores and convenience stores for roughly $2-$3 per gallon. Read about How To Maintain A Compact Utility Tractor. Fuel mixed in with the SCR finds an added source of elements to burn. All major brands of DEF available to the consumer market meet API Certification. Urea and consequently DEF is not overly toxic to humans. The track loader is equipped with a 28.8-gallon fuel tank and a 5-gallon (DEF). JavaScript is disabled. Can't get both, at least not with current technology (mechanical injection). I just didn't know if this was something that was needed as I haven't seen anything come up on the forums about it. However, we do not recommend that you do this unless you are absolutely sure that you will never need to use theDEF system and that it is legal in your state or country. By using DEF and Diesel Oxygen Catalyst, they can run hotter combustion temperatures which results in high NOX, but they take care of that with the DOC and urea in the DEF to convert the NOX. TYM tractors built since 2010 are equipped with SCR and require DEF. But like it or not, these standards are here to stay. It turns out that Americans truly do adapt and overcome. Seems like I read a couple years ago that Kubota was considering def in some of the really big models. . May 25, 2020. Horsepower Tunes. SCR stands for Selective Catalytic Reduction. #1. I have heard from current customers that the new 2.4L Doosans are burning more fuel than the 3.3L Kubotas were in the Tier IVi engines. Tier 4i (interim) engine standards were required to be achieved by 2011 with full FT4 compliance by 2014 (engines over 750 HP get one more year of reprieve). The new Tier IV final Doosan engines in the S850 will also be a 3.4L engine versus the 3.8L Kubota. Most likely it is on the front of the package near the bottom. Kubota B2620. The new engine models have been certified by the US Environmental Protection Agency (EPA) and California Air Resources Board (ARB). DEF technology has been used for decades in the country in agriculture, industrial and large scale power generation applications. I was ready to pull the trigger on a mx4700 rite up until the dealer gave me the soec sheet and it said it had a egr valve. Mixed with certain oxidants, chlorides, nitrites can cause fire or even explosions. DEF is 68 percent water, freezes at 12 degrees F, gels at minus 25 degrees and can degrade if stored above 90 degrees. I checked 9 tractor brands to find out whether they use DEF; which of their series use DEF and the year it was adapted. Kubota's newly announced engines all add ATAACs to engines that didn't previously use them and with them precisely measured and controlled air inlet temp - inlet into the cylinders. It may not display this or other websites correctly. Type above and press Enter to search. SCR systems inject Diesel Exhaust Fluid (DEF) into the exhaust stream. However, most of these brands made by TYM are always treated independently. Older machines can run on CJ-4 oils without problems, so the simplest choice would be to switch all engines to the low-ash formulations. JavaScript is disabled. Our coach is a 2011, and has a DEF system. The tractors in these series use an SCR system, where the exhaust is doused with DEF to help further reduce NOx.