Mobil Commercial Oils

Lubricants for all types of vessels.
With over 90 years of oil expertise, the Mobil Delvac™ engine oils range is one of the most highly developed lubricants range available for commercial vehicles. Mobil Delvac™ meets, and often exceeds, the needs of today's Original Equipment Manufacturers (OEM) and Commercial Vehicle (CV) professionals, and is chosen by many of the world's leading and largest heavy-duty truck engine builders for factory fill and service fill. To ensure the best lubricants are used in your heavy duty vehicles, Mobil delivers product performance measured by: engine life, engine cleanliness and wear protection, high and low temperature performance, soot dispersions, optimized drain intervals, reduced oil consumption and reduced downtime.

  • Overview
  • Mobile Delvac Lubricants
  • Commercial Lubricants FAQ

Lubricants for all types of commercial vehicles and trucks.
Since its introduction in 1925, Mobil Delvac has been providing long engine life and high performance protection for truck engines and drivelines throughout the world in all conditions. Throughout its history, Mobil Delvac has set the benchmark for lubrication excellence. Its commitment to research and technological development, as well as global availability, have made Mobil Delvac one of the world's most widely used brands of heavy-duty engine oil today.

Lubrications Specialists is proud to distribute and sell a full range of Mobil Delvac truck engine oils that cover heavy, medium and light duty applications. We can provide customers with both synthetic and mineral oil based lubricants that help long engine life with extended service intervals.

Delvac for your commercial engine.
We also stock a full range of other Mobil automotive lubricants for truck and commercial van applications whether it be for large or small fleet operations. Depending on the individual products, they meet major specifications such as API, ACEA, ZF, MAN, Scania, Mercedes Benz, Volvo, Renault, Iveco and DAF. For the latest specifications, please visit the ExxonMobil Product Data Sheet library.

Find out more about typical commercial vehicle engine oils for your make of truck, tractor, bus or van please select from one of the following:

  • + Mobil Delvac Engine Oils for MAN trucks
  • Mobil Delvac 1™ LE 5W-30
    Mobil Delvac 1™ SHC 5W-40
    Mobil Delvac™ XHP LE 10W-40
    Mobil Delvac™ XHP Extra 10W-40
  • + Mobil Delvac Engine Oils for Mercedes-Benz trucks
  • Mobil Delvac 1™ LE 5W-30
    Mobil Delvac 1™ SHC 5W-40
    Mobil Delvac™ XHP LE 10W-40
    Mobil Delvac™ XHP Extra 10W-40
  • + Mobil Delvac Engine Oils for Scania trucks
  • Mobil Delvac 1™ SHC 5W-40
    Mobil Delvac™ XHP LE 10W-40
    Mobil Delvac™ XHP Extra 10W-40
  • + Mobil Delvac Engine Oils for Volvo trucks
  • Mobil Delvac 1™ LE 5W-30
    Mobil Delvac 1™ LE 5W-40
    Mobil Delvac™ XHP LE 10W-40
    Mobil Delvac™ XHP Extra 10W-40

If you have adifferent make of commercial vehicle not listed above, please use the Mobil commercial vehicle lubricants product search tool.

Contact us about to find out about the wide range of Mobil rear axle oils specially developed for transmission, axles and final drives as well as:
  • Mobil oils for manual and automatic transmission including synthetic products
  • Mobil ATF lubricants for power steering
  • Mobil tractor lubricants for transmission and hydraulics
  • Mobil truck and van gear oils
  • Mobil agricultural STOU oils
  • Mobil greases that offer first-rate stability against oxidation and moisture intrusion

Mobil Delvac 1™ Lubricants for all types of commercial vehicles and trucks.
Lubrication Specialists Mobil Delvac 1 Synthetic Heavy Duty Engine Oils Mobil Delvac 1™ commercial engine oils are available in the following viscosity grades
  • Mobil Delvac 1™ LE 5W-30
  • Mobil Delvac 1™ 5W-40
  • Mobil Delvac 1™ SHC 5W-40

Excellent low temperature flow
Mobil Delvac 1 synthetic lubricants are engineered to reduce internal friction, which results in outstanding flow characteristics at low temperatures and components are lubricated more effectively, especially at a cold start-up.

Viscosity stability
Higher viscosity index translates to a more stable viscosity across a broad temperature range. As well as excellent low temperature performance, Mobil Delvac 1 synthetic lubricants resist thinning at elevated temperatures, resulting in protection across a greater operating temperature range.

Improved oxidation and thermal stability
Improved oxidation stability and thermal stability in Mobil Delvac 1 synthetic lubricants results in less viscosity increase with age and better deposit control, which can lead to less downtime, with the potential to save time and money.

Excellent wear protection
Newer vehicles must be able to handle higher torque and increased shock loads. Mobil Delvac 1 synthetic drive train lubricants offer excellent anti-scoring performance, which helps increase gear life at high speeds and under shock loading conditions.

Mobilube 1 SHC 75W-90: Formulated to help achieve fuel economy improvements

Mobil SHC 75W-90.
In addition to fully synthetic Mobil engine oils, high performance Mobil transmission and rear axle oils, greases and specialty products for commercial vehicles can help deliver further advantages to fleet operators – including fuel economy benefits.

Through innovative drivetrain designs, today's manual transmission and rear axle technology has vastly improved the performance capabilities of heavy-duty trucks in terms of load, torque, speed and control. These designs have increased the requirements of lubricants to deliver higher levels of performance, increased productivity and reduced operating costs. For heavy-duty final drives, friction control, wear protection, thermal stability, shear stability, rust and corrosion prevention and seal protection are lubrication features that must be optimally balanced. This enables an oil to provide long gear and seal life, smooth operation, improved fuel economy and high-load, high-torque capability over a wide range of applications.

In response to these advancements, ExxonMobil has developed Mobilube™ 1 SHC 75W-90, a fully synthetic, supreme performance commercial vehicle gear lubricant to deliver outstanding performance and reduce lubricants related operating costs in heavy duty drivetrains. For a fuel economy evaluation, the test on Mobilube 1 SHC 75W-90 was conducted using a 440 HP Volvo FH13, a 6x2 tractor loaded to 38 tonnes with i-Shift transmission.

The drive cycle was derived from long-term data-logging of long-haul, heavy-duty truck operations in Europe and the testing was conducted on track at MIRA in the UK. Mobilube 1 SHC 75W-90 was used in the transmission and rear axle and compared against a mineral 80W-90 oil in the transmission and mineral 85W-140 oil in the rear axle

A fuel economy benefit of up to 1.2% was measured when comparing the synthetic product to these mineral oil based products. Fuel economy improvements are dependent on vehicle/equipment type, outside temperature, driving conditions and your current fluid viscosities.

With fully synthetic drivetrain lubricants having the potential to enable companies to run their vehicles more fuel efficiently and for longer, operators who currently outsource their maintenance and servicing, should 'ask for synthetics' the next time their vehicles are taken into the workshop.

+Is the quality of an engine oil determined by its color or thickness (viscosity)?
While an oil's viscosity is an important characteristic, it actually does not say anything about an oil's quality; neither does the oil's color. To be sure you're buying a quality oil, look at the bottle and ask yourself a few questions: Is the product a reputable brand such as Mobil Delvac™? Do the industry and original equipment manufacturer specifications listed meet the needs of my equipment? Am I buying the oil from a reputable store or distributor? Is there a way to make sure I am buying an authentic product? If you can answer yes to all of these questions, you know you are buying a quality product.
+Is it true that as long as engine oil is changed regularly, it's OK to buy the cheapest oil possible?
Some people equate cheap oil with the inexpensive cost of operation. But this is a myth. The minute a piece of equipment is filled with an oil, the oil leaves its legacy behind. When comparing a premium product like Mobil Delvac™ to a cheap oil, the cheap oil could lead to higher wear rates and increased formation of deposit, varnish and sludge – all leading to high maintenance costs and reduced equipment life. So, while the cheap oil may cost less to buy, Mobil Delvac oil can cost less to own.
+Can Mobil Delvac™ engine oils guarantee a certain amount of engine life without an overhaul?
Mobil Delvac can help to extend the life of your engine. However, the actual life of an engine prior to overhaul depends on many variables: choice of oil, oil-drain interval, maintenance practices, terrain traveled, driving habits, fuel quality, load carried and ambient temperature (to name just a few). But using Mobil Delvac engine oils will certainly help keep the engine-life odds in your favor.
+Beyond using Mobil Delvac™ products, is there anything else I can do to improve my equipment life?
While choosing a high-performing product like Mobil Delvac is a great step toward long equipment life, there are other key considerations. To begin with, you need a proper viscosity grade. A fully synthetic 0W-20 product may provide significant fuel economy improvement, but it would most likely not run so well in a heavy-duty diesel engine. For that, a 5W-30 synthetic product is needed to provide protection against wear and maintain oil pressure. On the other hand, use of a 25W-60 in a modern, low emissions engine could also lead to premature engine failure since it may be too thick to properly lubricate all components, even at normal operating temperature. A proper preventive maintenance program is also critical to ensuring extended equipment life; this not only means that appropriate inspections, check-ups and work are done but also that they are done at the right interval.
+Does my engine oil impact my fuel economy?
Proper choice of oil, both in the engine and driveline, can have a impact on fuel economy. Two things to consider: A multigrade product tends to provide better fuel economy than a monograde (e.g., a 15W-40 is better than a 40 grade) and lower viscosity products tend to provide better fuel economy than higher viscosity products (e.g., a 5W-30 provides better fuel economy than both a 10W-30 and a 15W-40). As equipment ages, deposits and wear accumulate, resulting in a decrease in equipment efficiency. Mobil Delvac™ lubricants are able to protect the engine against deposit formation and wear, and resist soot-induced and oxidative viscosity thickening, allowing the equipment to maintain fuel economy throughout its life.
+I'd like to use one grease for my truck. What should I look for?
For most applications, Mobil Delvac™ Xtreme Grease is recommended. It is a National Lubricating Grease Institute (NLGI) #2 lithium complex grease, designed specifically for use in severe on-road, heavy-duty trucking. It is particularly effective in rust protection. It also has sealing and tacky consistency in dry conditions, and its high-water resistance capabilities help reduce lubricant consumption and increase bearing protection in wet environments. Most important, it offers very good rust and corrosion protection to help provide long life to bearings and chassis lube points.
+Can Mobil Delvac™ engine oils be used in more than just heavy-duty diesel engines?
Mobil Delvac™ engine oils meet API and ACEA requirements for both gasoline as well as light-duty diesel engines, on top of its heavy-duty credentials. Mobil Delvac oils are formulated to protect a wide range of heavy diesel off-highway vehicles and equipment, including Class-8 big rigs, pickup trucks, diggers, excavators, dozers, graders, tractors, dump trucks and more.
+What's the real story on supplemental oil treatments?
Mobil Delvac™ lubricants are formulated with a balanced additive system to provide outstanding performance for equipment. We invest millions of dollars testing our formulations to ensure this performance. Use of an aftermarket additive can easily throw this balance off, potentially causing severe problems. Additionally, many equipment builders now state in their service manuals that they specifically recommend against the use of these aftermarket additives. When you make a decision to purchase Mobil Delvac products, you can rest assured that they are formulated to provide optimal lubricating performance without any need for additional additives.
+Where and when should I use synthetic lubricants?
Regardless of whether you're moving supplies in the frost of the Arctic, hauling trailers up and over mountains, or traveling in the heat of the desert, synthetic lubricants provide optimal protection in some of the harshest of driving conditions. Synthetic lubricants resist degradation at high temperatures better than conventional oils, leading to long oil life and reduced deposits, sludge, and varnish formation. At low temperatures, synthetic lubricants flow better than conventional oils, allowing them to reach components faster in order to provide quicker and better protection against wear.

Because synthetic lubricants impart lower friction properties under load, they can help equipment operate more efficiently than conventional oils. This increased operational efficiency can be seen in improved fuel economy and lower operating temperatures, particularly in axle and transmission applications. In addition, many equipment builders endorse extended oil drain intervals when properly approved synthetic oils are used. In fact, many of world's transmission and axle builders provide an extended warranty for those using approved synthetic lubricants in their equipment.
+Is it practical to switch to synthetic lubes after running mineral oils for a long time?
Mobil Delvac 1™ synthetic lubricants are fully compatible with their mineral oil counterparts, and it is practical to switch. The outstanding performance improvements of Mobil Delvac 1 synthetic products over mineral oils can be realized at all kinds of ambient temperatures. To realize these benefits, including improved efficiency and cost benefits, Mobil Delvac 1 products are recommended to use all year round.
+What are the best practices for greasing intervals for fifth wheels?
Fifth wheel trailer mechanisms are subjected to a great deal of sliding and shock loading. Typically, fifth wheel surfaces should be coated with NLGI #2 grease before connecting the trailer. Since the existing grease on the surface has probably already collected dirt and other contamination, it should be cleaned before applying new grease.

Some fifth wheel mechanisms also contain a rack and pinion gear for positioning the trailer. These components often require special greases containing solids such as molybdenum disulfide or graphite so that the contact surfaces continue to be lubricated when the grease is squeezed out. For most applications, we recommend Mobil Delvac™ Xtreme Grease. It is a NLGI #2 lithium complex grease, designed specifically for use in severe on-road, heavy-duty trucking. It is particularly effective in rust protection. It also has sealing and tacky consistency in dry conditions, and its high-water resistance capabilities help reduce lubricant consumption and increase bearing protection in wet environments. Most important, it offers very good rust and corrosion protection to help provide long life to bearings and chassis lube points.
+What is the key to engine protection, as it relates to lubricants, for winter weather?
During the winter, all vehicle lubricants – whether engine oil, transmission oil, differential oil, hydraulic oil or grease – should be considered. Before starting equipment in extremely cold temperatures, an operator should make sure the oils in the engine, transmission and hydraulic system are fluid enough to flow. Check the engine oils using the dipstick where applicable; other fluids should also be checked by their appropriate methods.
+How does the cold affect your engine?
While most 15W-40 viscosity grades will satisfy the cold-weather startup temperature requirements in the United States, engine oil specifications should be referenced to ensure that properties such as pour point, cold cranking viscosity and cold-temperature pumping viscosity meet an engine's coldest operating temperature requirements. Premium engine oils such as Mobil Delvac 1™ LE 5W-30 and 15W-40 are formulated to provide increased cold-weather startup protection at temperatures as low as -15 F°. Additional options that fleets or owner/operators should consider are using a semisynthetic like our Mobil Delvac™ Elite,or our full synthetic Mobil Delvac 1™ ESP, which is formulated to deliver exceptional protection even in severe cold weather conditions.

Engines will experience the highest wear during cold startup, as lubrication to bearings and the upper-engine hardware is limited during startup and initial warm-up. The engine oil's viscosity at starting temperature is an important factor in determining whether or not an engine will start. Using too heavy a viscosity during cold temperatures can result in inadequate lubrication during startup.

If the chosen lubricant has a viscosity that is too high, the oil filter bypass valve – assuming the truck has one – will open and allow unfiltered oil to bypass the oil filter (the bypass valve maintains the lubricating oil flow to the engine and prevents an oil filter collapse). The bypass valve will close as the engine oil warms up and thins out. It is equally important to adequately warm up an engine before loading it. The best practice is to idle for a short period and warm up the engine by operating at a low rpm and load condition.
+How should owner/operators or fleets protect transmissions and differentials during the winter months
As temperatures drop, the same cold temperature viscosity phenomenon occurs with drivetrain lubricants as it does with engine oils. Following the engine warm-up procedures mentioned above will also allow for sufficient oil circulation to your drivetrain components. For general-service transmissions used in on-highway Class 8 vehicles where ambient temperatures of -15 degrees Fahrenheit or below exist, a heat exchanger is recommended to make warm-up times faster. Fully synthetic SAE 50 transmission and SAE 75W-90 gear oil lubricants, such as Mobil Delvac™ Synthetic Transmission Fluid 50, will provide better low-temperature fluidity than conventional oils, as well as help reduce wear, leading to longer equipment life and allowing for easier gear shifting while operating cold.
+How does truck engine idling impact fuel economy and vehicle operation?
Many truck engines idle for very prolonged periods during cold winter temperature conditions to allow for warm-up and to keep the cab warm. Prolonged idling will reduce engine life and also waste fuel. Engines operate cooler while idling, and during long idle periods in winter's cold temperatures, moisture in the intake air can condense in the engine crankcase and produce corrosive sulfuric acid, which can attack soft bearing alloys. Long idling also contributes to increased soot and combustion contaminants, which will shorten the engine oil's life prematurely and can lead to excessive piston deposits, sludge formation and detrimental viscosity effects.
+How can winter impact suspension systems and lubricant requirements?
During winter weather conditions, vehicle suspension components can be subjected to more adverse conditions, such as increased water and contamination from road salting. Careful attention is needed to ensure that the suspension components are greased at a regular interval and the proper amount of grease is applied to help minimize the entry of road contaminants, and to replace grease that has been washed out due to excessive water exposure. It is also important not to overgrease components as this can rupture seals and lead to reduced component life.

A ruptured seal can lead to loss of grease and lack of lubrication as well as intrusion of road contaminants, water, dirt, etc. Differentials and wheel hubs can be exposed to increased water intrusion during winter months from wet road conditions, high water at curbs, road flooding, etc. The lubricant condition should be inspected for water contamination when levels are checked. A visual inspection that shows a hazy or cloudy appearance or visible water droplets can indicate an excessively wet lubricant. Any indication of water intrusion should be investigated for the cause and the lubricant changed.
+What problems can wrong winter weather lubrication cause in a heavy-duty truck? What are the solutions?
Overgreasing the fifth wheel latch mechanism will tend to cause the latching mechanism to operate improperly (latching correctly). This can prevent the latch from locking properly on the trailer king pin and could result in the trailer accidentally dropping. Overgreasing also makes the fifth wheel latch difficult to operate during cold temperatures, which drivers often complain about.

A truck's greased components are subjected to more adverse conditions during winter weather conditions. Adequate grease is critical to ensure long component life and to keep out contaminants. Since grease is harder to pump and flow under cold temperature conditions, it is important that truck shops ensure their grease equipment is maintained and adjusted properly to ensure good pumping pressure and grease flow through the entire grease-dispensing system to the grease gun nozzle. Any leaking lines, hoses or grease guns should be repaired or replaced. Air pressure to the grease pump must be adjusted to ensure good grease flow and pressure to the vehicle's greased components. Technicians should also visually ensure clean grease is purged through all outlets of the components, such as all trunnions on a u-joint.

Truck or trailer units utilizing on-board automatic grease-dispensing systems should ensure the proper grease product is being used to ensure good flow under cold temperature conditions and the lubricator is adjusted to provide adequate pumping under cold temperature conditions as the grease will be harder to pump as temperatures decrease. Inadequate flow will lead to early component failure. If the current grease product is not performing under cold temperature exposure, consider dropping to a lower NLGI grade and consult your lubricant supplier.