{"id":1801,"date":"2025-12-18T23:15:33","date_gmt":"2025-12-18T22:15:33","guid":{"rendered":"https:\/\/www.motendo.com\/blog\/?p=1801"},"modified":"2025-12-18T23:15:34","modified_gmt":"2025-12-18T22:15:34","slug":"which-oil-and-grease-should-be-used-for-transmissions-and-hydraulics-in-agricultural-machinery-a-complete-guide","status":"publish","type":"post","link":"https:\/\/www.motendo.com\/blog\/en\/which-oil-and-grease-should-be-used-for-transmissions-and-hydraulics-in-agricultural-machinery-a-complete-guide\/","title":{"rendered":"Which Oil and Grease Should Be Used for Transmissions and Hydraulics in Agricultural Machinery \u2013 A Complete Guide"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Proper selection and regular replacement of oils and greases is the foundation of reliable agricultural machinery operation. Practice shows that <strong>70% of hydraulic system failures<\/strong> occur in the first 500 operating hours precisely due to maintenance neglect. Every tractor, combine, or loader operator should know basic lubricant selection principles and understand consequences of improper application.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this guide you&#8217;ll find specific data on hydraulic, transmission, and multifunctional UTTO oil classification, plus practical guidelines on replacement intervals and costs of neglect. We present actual repair prices \u2013 from $200 for hydraulic pump regeneration to $6,250 for complete loader failure. This article is aimed at farm owners, machine operators, and service technicians who want to consciously manage their equipment maintenance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What will you learn from this article?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"#types-classification\">What types of hydraulic oils exist?<\/a><\/li>\n\n\n\n<li><a href=\"#utto-oils\">What are UTTO oils and when to use them?<\/a><\/li>\n\n\n\n<li><a href=\"#gear-oils\">API GL-4 or GL-5 \u2013 which gear oil to choose?<\/a><\/li>\n\n\n\n<li><a href=\"#plastic-greases\">Which plastic greases work in your machines?<\/a><\/li>\n\n\n\n<li><a href=\"#wear-symptoms\">How to recognize worn hydraulic oil?<\/a><\/li>\n\n\n\n<li><a href=\"#replacement-frequency\">How often to replace oils and greases?<\/a><\/li>\n\n\n\n<li><a href=\"#failure-costs\">How much does lack of maintenance cost?<\/a><\/li>\n\n\n\n<li><a href=\"#product-selection\">How to select proper oil and grease?<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"types-classification\"><strong>What types of hydraulic oils exist?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hydraulic oils in agricultural machinery are classified primarily according to <strong>ISO 3448 standard<\/strong>, which defines viscosity grade, and quality standards <strong>DIN 51524<\/strong> and <strong>ISO 6743-4<\/strong>. Most common classes are HH, HL, HLP, HM, HV and HVLP \u2013 they differ in additive package and application range.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For modern, heavily loaded hydraulic systems in tractors, loaders and combines, most commonly used are <strong>HLP\/HV\/HVLP class oils with ISO VG 32 or 46 viscosity<\/strong>. HV class oils are characterized by elevated viscosity index (VI) and advanced anti-wear (AW) and extreme pressure (EP) additive package, ensuring stable operation in wide temperature range and at high pressures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Most important parameter is <strong>kinematic viscosity measured at 40\u00b0C<\/strong>. For hydraulics, typically recommended are ISO VG 32 (28.8\u201335.2 mm\u00b2\/s) or ISO VG 46 (41.4\u201350.6 mm\u00b2\/s), with <strong>VG 46 dominating in agricultural industry<\/strong> due to universality. In older, less loaded installations, simpler HH\/HL oils may be used, but increasingly shifting to universal HLP standard for safety and system durability.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Hydraulic oil quality classes<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Each hydraulic oil class has defined lubricating properties and application range. HL oils perform basic lubrication functions and are suitable for <strong>systems with pressure below 100 bar<\/strong>. HLP oils contain anti-wear additives, making them excellent for systems exposed to high loads during intensive agricultural machinery operation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HV oils are distinguished by variable viscosity that remains stable in wide temperature range \u2013 from frosty winter to hot summer. This makes them appropriate choice for agricultural machines working in variable atmospheric conditions. Properly selected hydraulic oil protects hydraulic system from damage and extends component lifespan.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"utto-oils\"><strong>What are UTTO oils and when to use them?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">UTTO (Universal Tractor Transmission Oil) are specialized <strong>multifunctional oils combining hydraulic oil properties<\/strong> (HV class), transmission oil (GL-4) and dedicated for work with wet brakes and clutches in agricultural machinery. Most popular viscosities are 10W-30, 10W-40 and SAE 10W-30, and popular brands are Fuchs Agrifarm UTTO MP, Neste Premium Gear UTTO or Orlen Platinum Multi UTTO 10W-30.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">STOU (Super Universal Tractor Oil) is even more universal version combining <strong>engine, transmission and hydraulic oil in one product<\/strong>, enabling simplified maintenance for machines with fully integrated lubrication systems. UTTO oils work properly in wet brakes and clutches thanks to special additives preventing squealing, rattling and vibrations during braking.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why you must never mix UTTO oils<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Extremely important is to <strong>never mix UTTO with traditional hydraulic or transmission oils<\/strong>. This practice leads to oil foaming, decreased lubricating properties, increased friction and excessive heat generation in system. Consequences can be serious \u2013 from hydraulic efficiency loss to complete transmission damage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">UTTO oils contain specific additives ensuring stable friction properties for friction materials used in wet brakes. Mixing with other products destroys these properties and can lead to failure costing <strong>from $500 to $5,000<\/strong> depending on damage extent. Always check tractor manufacturer recommendations \u2013 whether New Holland, John Deere, Case IH or Massey Ferguson.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"gear-oils\"><strong>API GL-4 or GL-5 \u2013 which gear oil to choose?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">API GL-4 are classic oils intended for <strong>synchronized transmissions<\/strong> with moderate to high load. Most commonly used in older tractors such as Ursus C-330\/C-360 or Zetor. Typical viscosity is SAE 80W-90, with moderate EP (Extreme Pressure) additive packages protecting against transmission component wear.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">API GL-5 are advanced formula oils with strong EP additives, intended for <strong>hypoid differentials and drive axles<\/strong> with very high load, especially in off-road vehicles and heavy machinery. Recommended viscosities are SAE 80W-90 or 80W-140 depending on ambient temperature and agricultural machine working conditions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Key difference between GL-4 and GL-5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Although GL-5 meets GL-4 requirements, <strong>using GL-5 in transmissions with synchronizers is not recommended<\/strong>. Aggressive anti-wear additives in GL-5 oils can damage soft metals in synchronization mechanisms. For this reason, always follow machine manufacturer recommendations and check specification before oil purchase.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In practice this means for agricultural tractor transmission use GL-4, while for drive axle \u2013 GL-5. Improper gear oil selection can result in <strong>repair costs from $500 to $1,250<\/strong> for transmission regeneration or even $1,500\u2013$5,000 for complete new transmission replacement.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"plastic-greases\"><strong>Which plastic greases work in your machines?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In agricultural machinery for bearings, pins, joints and axles, mainly used are <strong>plastic greases with NLGI 2 thickener class<\/strong> (universal hardness). Proper grease type selection depends on working conditions, temperature and lubrication point load.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lithium greases are simplest and most universal greases, used for <strong>rolling bearings and general lubrication points<\/strong> in daily tractor and light machinery use. They work in temperatures from -22\u00b0F to +266\u00b0F, are moisture resistant and provide corrosion protection, but perform weaker at high temperatures and heavy loads.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lithium-complex and molybdenum greases<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lithium-complex greases are characterized by <strong>better high temperature resistance (up to +302\u00b0F) and heavy loads<\/strong>, water and moisture compared to lithium greases. Ideally suited for lubricating joints, pins and axles in loaders where large pressures and oscillating movements occur during machine operation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Molybdenum greases (with MoS\u2082 \u2013 molybdenum disulfide) contain anti-seize additive that <strong>exceptionally effectively protects components from excessive wear, friction and seizure<\/strong> even in extreme conditions. Intended for sliding bearings, heavily loaded pins and joints in balers and loaders. Molybdenum creates durable protective layer on metal surfaces, reducing friction coefficient and increasing load resistance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Recommended grease brands for agricultural machinery<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Market offers proven agricultural machinery greases such as <strong>AGTECH EP 1 Grease<\/strong> (universal lithium), Vegatol VPRO X 322 (lithium-complex with MoS\u2082), Shell Gadus S2 V220AD 2 (lithium with molybdenum), Mobil Centaur Moly 2 (molybdenum for heavy loads) and John Deere Green Moly Grease (dedicated to JD machines). Proper grease extends machinery lifespan and reduces costly failure risk.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"wear-symptoms\"><strong>How to recognize worn hydraulic oil?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Worn hydraulic oil manifests several characteristic symptoms that operators should know to respond before serious failure occurs. Most important signal is <strong>temperature rise above 181\u00b0F<\/strong> \u2013 oil then loses heat dissipation ability, accelerating its degradation, additive aging and hydraulic system seal damage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Every 18\u00b0F temperature rise doubles oil aging rate. High temperature also causes rubber seal swelling and aging, leading to leaks and hydraulic system efficiency loss. Noise from hydraulic pump is another symptom \u2013 too low oil viscosity (resulting from degradation) leads to cavitation (gas bubble formation), which during implosion damages pump rotors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Visual oil wear symptoms<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Oil color change to dark or cloudy indicates <strong>oxidation, chemical degradation or water presence<\/strong> in hydraulic system. Oil should be transparent \u2013 milky color means water in oil (above 100 ppm), and unpleasant, burnt smell signals overheating. Presence of metal filings and contaminants is unambiguous proof of component mechanical wear and system contamination.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"279\" src=\"https:\/\/www.motendo.com\/blog\/wp-content\/uploads\/2025\/12\/Motendo-blog-zdjecia-trojnik-1-1024x279.png\" alt=\"\" class=\"wp-image-1797\" srcset=\"https:\/\/www.motendo.com\/blog\/wp-content\/uploads\/2025\/12\/Motendo-blog-zdjecia-trojnik-1-1024x279.png 1024w, https:\/\/www.motendo.com\/blog\/wp-content\/uploads\/2025\/12\/Motendo-blog-zdjecia-trojnik-1-300x82.png 300w, https:\/\/www.motendo.com\/blog\/wp-content\/uploads\/2025\/12\/Motendo-blog-zdjecia-trojnik-1-768x209.png 768w, https:\/\/www.motendo.com\/blog\/wp-content\/uploads\/2025\/12\/Motendo-blog-zdjecia-trojnik-1.png 1100w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Slow or uneven hydraulic cylinder operation means high solid particle content (filings, dirt, sand), which increases flow resistance and friction in cylinders. Pressure drop in hydraulic system results from pump, valve and bearing wear, resulting in internal leaks and agricultural machine hydraulic power loss.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"replacement-frequency\"><strong>How often to replace oils and greases?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Replacement frequency is specified by machine manufacturer instructions, however general guidelines for agricultural machinery are as follows. <strong>Hydraulic oil is replaced every 1000\u20134000 operating hours<\/strong>, and in difficult working conditions (high dust level, moisture, overload) replacement should be every 500\u20131000 operating hours. In practice for intensively working machines (combines, loaders) recommended is shortening interval by 20\u201330%.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Transmission and UTTO oil is replaced every <strong>500\u20131000 operating hours for modern transmissions<\/strong>, for older systems every 1000\u20131500 operating hours. In each case follow tractor manufacturer recommendations \u2013 John Deere recommends 250\u2013500 hours, Case IH 300 hours. Following these intervals ensures full system reliability during field work season.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Filter replacement and moving point lubrication<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hydraulic oil filters should be replaced <strong>simultaneously with oil change<\/strong> or every 500 operating hours to prevent filter capacity loss and contaminant passage into oil. Replacement indicator is pressure increase on filter above 2 bar from standard \u2013 then filter must be replaced immediately.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Moving point lubrication should be performed <strong>every few to several operating hours<\/strong> for heavily loaded elements (loader pins), and every 50\u2013100 hours for standard tractor bearings, depending on manufacturer recommendation. Old, dried grease must be removed before applying fresh, otherwise mixed grease loses properties and doesn&#8217;t provide proper moving component protection in agricultural machinery.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"failure-costs\"><strong>How much does lack of maintenance cost?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lack of timely oil replacement and moving element lubrication leads to serious and <strong>costly financial consequences<\/strong>. Hydraulic pump seizure \u2013 when dirty, contaminated oil acts like abrasive paste destroying pump rotors \u2013 means gear pump regeneration cost from $200 to $375, and piston pump from $625 to $1,500.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"250\" height=\"200\" src=\"https:\/\/www.motendo.com\/blog\/wp-content\/uploads\/2025\/12\/Silownik-ramienia.png\" alt=\"\" class=\"wp-image-1798\" style=\"aspect-ratio:1.2499999694335162;width:438px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Directional valve damage due to oil contamination causes <strong>hydraulic efficiency loss and repair costs from $500 to $1,500<\/strong>. Internal corrosion caused by water in oil leads to system internal surface corrosion, resulting in repair costs from $750 to $2,500 and complete damaged component replacement in machinery.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Transmission and differential failure costs<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Transmission wear and seizure from lack of gear oil replacement results in bearing, synchronizer and gear wear. <strong>Transmission regeneration cost is $500\u2013$1,250<\/strong> (labor only), and new transmission replacement is $1,500\u2013$5,000 depending on tractor model. In hypoid differentials, lack of timely GL-5 replacement leads to gear cracking and seizure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Differential and axle damage generates costs <strong>from $750 to $2,500 for bearing replacement<\/strong> or from $1,250 to $5,000 for complete drive axle overhaul. Lack of lubrication \u2013 pin and bearing seizure from dry moving component operation results in rapid pin, socket and bearing knockout, component cracking and hydraulic system power consumption increase.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">True value of prevention<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Single bearing repair cost is <strong>from $125 to $500<\/strong>, but quickly grows to $2,000\u2013$6,250 in case of complete loader or other agricultural and construction machinery failure. Critically important: regular lubrication and oil change cost is mere few percent of catastrophic repair costs. Maintenance investment pays back after avoiding single serious failure and protects against losses from machinery downtime during harvest or field work season.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"product-selection\"><strong>How to select proper oil and grease?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For hydraulic oils, several key parameters should be considered. <strong>Viscosity<\/strong> typically ISO VG 32 or 46 (rarely 68) depending on ambient temperature and system pressures. Quality class is HLP\/HV\/HVLP for modern heavily loaded hydraulic systems in tractors and agricultural machinery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Oil base type can be mineral (standard), synthetic (better temperature properties) or biodegradable (environmental protection). Working conditions \u2013 ambient temperature, pressure ranges, wet brake presence \u2013 directly impact proper hydraulic oil selection for machine system.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">UTTO and transmission oil selection<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Always follow <strong>tractor manufacturer standards<\/strong> \u2013 New Holland, John Deere, Case, Massey Ferguson or other agricultural machinery manufacturer specifications. Pay attention to required API GL-4\/GL-5 standards and ZF and CNH specifications. For machines with wet brakes and clutches use only UTTO, not traditional GL.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Never mix UTTO oils with GL or oils of different classes \u2013 this leads to lubricating property loss and can result in system failure. Proper transmission oil matched to manufacturer specification ensures long transmission life and trouble-free agricultural machinery operation for many seasons.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Plastic grease selection<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For standard tractor rolling bearings use <strong>lithium greases<\/strong>. For joints and pins with greater loads choose lithium-complex greases. Molybdenum greases are intended for elements working under heavy pressure and friction \u2013 loader pins, baler joints, sliding bearings in intensively operated machinery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">High quality lubricants guarantee long machinery life. Market offers proven grease brands such as AGTECH, Vegatol, Shell, Mobil or dedicated John Deere products. For organic farms we recommend biodegradable options like Panolin HLP SYNTH (up to +158\u00b0F) or BIOFLUID SBH.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">High quality brands and products<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hydraulic oils available on market include <strong>Orlen (L-HV series, Hydrol)<\/strong>, Fuchs (HLP, HVLP series), Panolin (HLP Synth \u2013 biodegradable), Shell (Tellus) and Clarian. UTTO and transmission oils are offered by manufacturers such as Fuchs (Agrifarm UTTO MP\/LN\/VT), Neste (Premium Gear UTTO), Orlen (Platinum Multi UTTO), Mobil (DTE) and Renolin.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Agricultural machinery greases and oils should be selected according to equipment manufacturer recommendations. In case of doubt, worth using manufacturer oil finders \u2013 Neste Lubricant Advisor or Teboil Lubricant Advisor \u2013 or seek advice at agricultural store offering lubricant selection consulting.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Laboratory analysis as prevention tool<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">To avoid problems and extend oil life, recommended is <strong>periodic laboratory analysis every 500\u20131000 operating hours<\/strong>. Tests show Particle Count (solid contamination quantity \u2013 standard below 1\u20132 \u03bcm), water content (ideally below 50 ppm, oil cloudiness above 100 ppm), viscosity (checking if oil degraded), acidity\/TAN number (oil aging indicator) and metal content (early component wear signal).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Such prevention allows <strong>avoiding surprises at critical season moment<\/strong> and planning replacement before actual hydraulic system or transmission destruction. Using proper oils and regular condition monitoring is investment that repeatedly pays back through avoided repair costs and agricultural machinery downtime.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Summary<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Proper lubrication and oil replacement are <strong>essential agricultural machinery maintenance elements<\/strong> directly affecting equipment durability, reliability and operational profitability. Selecting proper hydraulic oil (HLP\/HV\/HVLP ISO VG 46), universal UTTO for integrated systems, GL-4\/GL-5 for transmissions and axles, and lithium-complex and molybdenum greases for moving elements is sine qua non condition for trouble-free operation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Systematic oil change every 500\u20131500 operating hours, regular lubrication and periodic laboratory analysis is <strong>investment paying back multiple times<\/strong> by avoiding costly repairs ($200 to $6,250), season downtime and extended machinery life. Lack of these activities quickly leads to pump, valve, transmission and bearing seizure, generating repair costs reaching tens of thousands of dollars.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Operator practice shows regular maintenance cost constitutes mere few percent of catastrophic failure costs. Every farm owner should treat transmission and hydraulic greases and oils as key element of their machinery fleet maintenance strategy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Check listings in <a href=\"https:\/\/www.motendo.com\/en\/agricultural-machinery\/\">agricultural tractors<\/a> category \u2192<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Proper selection and regular replacement of oils and greases is the foundation of reliable agricultural machinery operation. Practice shows that 70% of hydraulic system failures occur in the first 500 operating hours precisely due to maintenance neglect. Every tractor, combine, or loader operator should know basic lubricant selection principles and understand consequences of improper application.<\/p>\n","protected":false},"author":2,"featured_media":1795,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Hydraulic and gear oils and lubricants","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Which Oil and Grease Should You Choose for Transmissions and Hydraulics in Agricultural Machinery?A Complete Guide to Hydraulic and Gear Oils for Tractors and Agricultural Machines","footnotes":""},"categories":[58,40],"tags":[204,854,852,243],"class_list":["post-1801","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agricultural","category-machine-categories","tag-agricultural-machines","tag-lubricants","tag-oils","tag-tractors"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.10 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Which Oil and Grease Should Be Used for Transmissions and Hydraulics in Agricultural Machinery \u2013 A Complete Guide - 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