Mobil Delvac 1™ ESP 5W-40

Name: Mobil Delvac 1™ ESP 5W-40
Brand: Mobil
SKU: 201520101017

Advanced full synthetic, high-performance diesel engine oils

Mobil Delvac 1 ESP 5W-40 is an advanced full synthetic, high-performance diesel engine oil that delivers long drain capability and fuel economy potential* while helping to extend engine life for modern diesel engines operating in severe conditions.

Mobil Delvac 1 ESP 5W-40 diesel engine oil is formulated to deliver outstanding performance in newer and older engine designs, including those with emission control systems. Its formulation meets or exceeds the requirements of original equipment manufacturers (OEMs) with state-of-the-art technology that provides:

Outstanding performance at extreme temperatures
Our best protection for drivers with extended oil drain intervals
Enhanced emission system protection in a variety of severe conditions

Mobil Delvac 1 ESP 5W-40 diesel engine oil is recommended by ExxonMobil for use in:

Most engine generations up to the latest and most sophisticated high-performance diesel engines with turbocharger, direct-injection and low-emission designs
On-highway applications operating in both high-speed/high-load and short-haul pick-up/delivery
Off-highway applications operating in severe low-speed/heavy-load conditions
High-performance gasoline engines and mixed fleets
Heavy-duty diesel engines using low-sulfur diesel fuels and many biodiesel fuel formulations
Naturally aspirated and turbocharged, diesel-powered equipment
Virtually all diesel-powered equipment from American and European builders
Refrigeration units

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Product Data Sheets (PDS)
Safety Data Sheets (SDS)

Features and Benefits

Mobil Delvac 1™ ESP 5W-40 is an outstanding lubricant solution for modern and latest engine technology equipped with emission after-treatment. It was developed by ExxonMobil to maintain unsurpassed oxidation stability³ while also delivering exceptional low temperature fluidity and pumpability for smooth starting in cold down to -35°C. This feature, in combination with the sophisticated additive system, ensures exceptional engine wear performance and supports long engine life. The low ash formulation protects at the same time all exhaust after-treatment devices to maintain cleaner air requirements. The advanced engine cleanliness performance prevents deposits and keeps the engine running like new for long and efficient engine life.

³ Based on PC-11 industry test data.

Features	Advantages and Potential Benefits
Excellent low temperature pumpability	Reliable engine start and wear protection at low temperatures
Step out wear protection	Reduced engine wear to promote long engine life
Unsurpassed oxidation stability³	Long oil drain intervals and prevention of deposits
Superb resistance to corrosion	Protection of critical engine surfaces in humid environments

Applications

Recommended by ExxonMobil for use in:

• Most engine generations up to latest and most sophisticated high performance diesel engines with turbo-charger, direct injection and low emission designs, featuring all types of exhaust after-treatment technology

• On-highway engines operating in both high speed/high load and stop-and-go conditions

• Off-highway engines operating in severe low speed/heavy load conditions

• Most diesel powered equipment from American and European equipment builders

• High performance gasoline engines and mixed fleets

• Refrigeration units

Specifications and Approvals

This product has the following approvals:
Cummins CES 20081
Cummins CES 20086
Detroit Fluids Specification 93K218
Detroit Detroit Fluids Specification 93K222
MACK EOS-4.5
MTU Oil Category 2.1
VOLVO VDS-4.5
RENAULT TRUCKS RLD-3
DTFR 15C100

This product meets or exceeds the requirements of:
API CK-4
API CJ-4
API CI-4 PLUS
API CI-4
API CH-4
API SM
API SN
JASO DH-2
Caterpillar ECF-3
ACEA E7
ACEA E11-22

Properties and Specifications

Property
Grade	SAE 5W-40
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445	84
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445	13.8
Cold-Cranking Simulator, Apparent Viscosity @ -30 C, mPa.s, ASTM D5293	6510
Mini-Rotary Viscometer, Apparent Viscosity, -35 C, mPa.s, ASTM D4684	16800
Hi-Temp Hi-Shear Viscosity @ 150 C 1x10(6) sec(-1), mPa.s, ASTM D4683	3.8
Viscosity Index, ASTM D2270	169
Ash, Sulfated, mass%, ASTM D874	1
Total Base Number, mgKOH/g, ASTM D2896	12
Pour Point, °C, ASTM D97	-48
Flash Point, Cleveland Open Cup, °C, ASTM D92	233
Density, 15.6C, g/cm3, ASTM D4052	0.852

Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx

Heavy-duty lubricants FAQs
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Rated 5 out of 5 by Stiffy from Mobil Delvac 1 ESP 5w-40 One of the best diesel oils made, if not the best for my 2022 6.7 powerstroke.

Date published: 2025-11-17

Rated 5 out of 5 by RC Beaver from Premium Quality & Pricing Great pricing and rebate available. Haven't used this pail yet, but it is due soon. Follow up on the rebate - my submission was approved and then rejected two weeks later. A phone call hopefully fixed that, but we'll see...

Date published: 2025-10-28

Rated 5 out of 5 by George32 from Decrease your friction Great lube for those heavy friction jobs. Definitely should help with the longevity

Date published: 2025-06-04

Rated 5 out of 5 by Miracleworker from Gas small engine protection Excellent oil for my expensive gas engine powered lawn cutting equipment.

Date published: 2025-05-16

Rated 5 out of 5 by Jad alsager from Mobil It's very good , nice and important Thank you very much.

Date published: 2025-04-15

Rated 4 out of 5 by Lawrence from Good Oil for Diesel Truck FANTASTIC oil for my DIESEL TRUCK. I change it every 7500 miles.

Date published: 2025-04-05

Rated 5 out of 5 by Burnin’ Oil from Extended Drain Intervals!🙌 Love the long drain intervals. Use in all my rigs including my 1.9 TDI, 7.3 Powerstroke, & 6.9 idi.

Date published: 2025-04-03

Rated 5 out of 5 by DGW444 from Great product with reliable performance. Great product! I trust it for all of my diesel equipment.

Date published: 2025-03-19

Rated 5 out of 5 by Smco from Great oil Great oil Makes starting in below zero weather easier

Date published: 2025-03-19

Rated 5 out of 5 by Jack OAT from It’s Mobil Have always been a fan of Mobil products. Have used the Delvac line for decades. I don’t know for sure, I’m not Imprint certain but I’m sure the ESP will help my 6.7 Cummins engine and emissions last longer.

Date published: 2025-03-12

Rated 5 out of 5 by Mike New Mexico from Great Product. Been using this for all my Duramax oil changes for 5 years. I wouldn't change.

Date published: 2024-11-05

Rated 5 out of 5 by Bonny from Great for power strokes I use Mobil oil in my vehicles because it offers superior engine protection, enhances fuel efficiency, and ensures smooth performance. Its advanced formulation helps reduce wear and tear, prolonging engine life. Mobil oil also provides excellent thermal stability and resists breakdown, making it reliable under various driving conditions. Overall, it contributes to the longevity and reliability of my vehicles

Date published: 2024-11-03

Rated 5 out of 5 by Devon from Great oil Mobil oil is renowned for its superior performance and protection. Formulated with advanced additives, it effectively reduces engine wear, enhances fuel efficiency, and maintains optimal viscosity across a range of temperatures. Trusted by both consumers and professionals, Mobil oil promotes engine longevity and reliability, making it an excellent choice for various vehicles, from everyday cars to high-performance engines.

Date published: 2024-11-03

Rated 5 out of 5 by JennyS_MN from I run Mobil Delvac 1 in all my diesel engines. We are using Mobile Delvac 1 in all our diesel engines, from our 450 HP Cummins Motorhome engine, to the engines in my 2004 and 2014 F350. We oil sample them - and could use longer run times, but I like to be well within the limits of the oil on these expensive motors

Date published: 2024-10-12

Rated 5 out of 5 by Nathan Higgers from Killer HD Oil My favorite oil to use in the armored Komatsu dozer. They gonna learn today.

Date published: 2024-05-10

Rated 5 out of 5 by Marty H from The very best for my tractor I choose Mobil Delvac 1 because I have found that it is the very best money can buy for my tractor. I have a 48 horsepower TYM T474. I decided to try Mobil Delvac 1 in hopes that it would run quieter, smoother and cooler. Delvac 1 did not disappoint. I’m thoroughly impressed by the results and will use Mobil Delvac 1 from this point forward. I have used Mobil 1 in all of my other vehicles for years and now my tractor is happy too.

Date published: 2024-05-03

Rated 5 out of 5 by Garth from Quieter running I've used Mobil synthetic oils for many years. this makes my Ram diesel quieter with less valve train noise then other brands I have tried.

Date published: 2024-05-03

Rated 1 out of 5 by Taken advantage of from They need the money more than me, I guess They won’t honor the rebate which I qualify for. I’ve read it over and there is no reason I don’t qualify

Date published: 2024-05-01

Rated 5 out of 5 by FarmerJ from Farmer I've used this for several years in skidsteers and utility tractors as well as my pickup. It works well and everything starts very well in the winter.

Date published: 2024-04-19

Rated 5 out of 5 by Tom Haverford from All about the rebates! I do frequent oil changes in my vehicles and the rebates help offset my maintenance routines.

Date published: 2024-04-15

Rated 4 out of 5 by Jcrysler from Use it consistently. Have been using it since I got the vehicle. Seems to work well with no issues.

Date published: 2024-01-02

Rated 5 out of 5 by Frosty Jerry from Premium Cold Weather Performance Premium Product Performance for our Diesel Engines in cold Weather

Date published: 2023-12-17

Rated 5 out of 5 by Lake Country from Da*n Good The only oil to use in ND when the temperature drops

Date published: 2023-12-16

Rated 5 out of 5 by sven m. (7) from can’t be seriously rated every rating here is nonsense. to really rate the oil you must take the engine apart after using that oil and compare engine component measurements / wear against running a similar engine with a different oil. cost was good 14$per gallon after rebates and a black friday deal at fleet farm! running this in my 21 ram 2500 cummins. sven

Date published: 2023-12-15

Rated 5 out of 5 by 73Jim from Protect your investment Above and beyond motor oil, modern diesel engines are tough on oil.

Date published: 2023-06-11

Rated 5 out of 5 by Lippy52 from Best heavy-duty oil This is the only oil I will use in my truck.It has never let me down.

Date published: 2023-06-02

Rated 5 out of 5 by RattlingDiesel from Reliable, High Quality Oil Ran this with confidence in my HO Cummins, and now L5P Duramax.

Date published: 2023-04-27

Rated 5 out of 5 by Cygnus from My engine loves it! I just changed the oil in my 2004 Dodge Grand Caravan and it loves it. Definitely seems to have more power and better response. HDEO in a mini-van? Crazy, right? No. If this stuff can stand up to the severe running conditions that heavy-duty diesels go through, then it can stand up to whatever my van is doing. As someone who doesn't have money to buy another vehicle or replace an engine, I want it to last as long as possible.

Date published: 2021-12-18

Rated 5 out of 5 by Vince from Does the job. Works well for a Ford Powerstroke that spends most of its life towing a trailer.

Date published: 2021-10-25

Rated 5 out of 5 by Bigcat99 from Solid performing oil for hard working engines Been using this in my Duramax engines in trucks that pull 12,000-15,000lb trailers M-F, 52 weeks/yr for almost a decade. Helps with cold starts in cold MN winters, and the longer service intervals help the pocketbook a little bit as well. Always partner the 5w-40 ESP with a Mobil1 extended service 303A filter.

Date published: 2021-09-30