15W40 CI4/SL

UHD Plus - Diesel Engine Oil (API: CI-4/SL)

SMP UDH PLUS API CI-4/SL is extra high performance diesel motor oil that provides excellent lubrication of today’s diesel engines promoting extended engine life. As a result, this product meets and exceeds the specications of virtually all major European and
American engine manufacturers. This extra high performance has been proven in the field in a wide variety of industries,
applications, and mixed meets. This is designed for high-speed, new engine model types on-highway exhaust emission standards, it is effective at sustaining emission control and system durability where particulate filters and other advanced after treatment systems are used.

Applications

Naturally aspirated and turbo-charged diesel powered equipment from leading Japanese, European, and American Manufacturers. On-highway light and heavy-duty trucking. Off-highway industries including: construction, mining, quarrying, and agriculture. Mixed fleet applications.

Naturally Aspirated vs Turbo Engines

Simple explanation of how diesel engines work with or without a turbo for better power.

Trusted Global Brands

Highlight equipment from top Japanese, European, and American manufacturers.

On-Highway Trucking

Engines built for both light and heavy-duty trucks running on highways.

Off-Highway Power

Strong diesel engines for construction, mining, quarrying, and farming.

Mixed Fleet Solutions

One engine oil and parts solution for fleets with different vehicle types.

Reliability and Performance

Focus on long-lasting engines that deliver both strength and efficiency

FEATURES & BENEFITS

• Excellent thermal and oxidation stability
• Excellent Stay-in-grade shear stability
• Excellent detergency/dispersancy
• Reduced oil consumption and increase wear
protection
• Excellent rust and corrosion protection
• Excellent low temperature lubrication properties
• Higher TBN reserve
• Controls sludge build-up and deposits

MEETS & EXCEEDS

• API CI-4/SL
• Allison C4
• VDS-3
• ACEA E7, ES,E-3
• Global DHD-1
• Caterpillar ECF-1

Typical Properties

Typical Properties

TEST METHOD

UNIT

TYPICAL TEST RESULT

SAE Grade

SAE Grade

15W-40

Color

ASTM D-1500

-

L 3.0

Kinematic Viscosity @ 1040F /400C

ASTM D-7042

cSt

100

Kinematic Viscosity @ 2120F /1000C

ASTM D-7042

cSt

14.50

Viscosity Index (min)

ASTM D-2270

-

135

SP. Gravity @600F

ASTM D-4052

g/cm3

0.880

Flash Point (min)

ASTM D-92

0C

220

Pour Point (max)

ASTM D-97

0C

-30

TBN

ASTM D2896

Mg KOH/g.

12

CCS, Cp (max)

D-5293

Wt. %

7000(-20)

NOACK (max)

D-5800

Wt. %

15

FAQ

Over time, engine oil loses its effectiveness in several ways, making it essential to ensure the oil in your car is clean and not damaging vital engine components.

As oil breaks down with use, it accumulates sludge, dirt, and other contaminants from the combustion process. To prevent these particles from circulating through the engine, an SMP oil filter is used to keep the oil as clean as possible.

Regardless of how well a vehicle is maintained, engines naturally produce debris and deposits that pollute the oil. While the SMP oil filter initially captures these particles, it eventually becomes clogged, reducing its effectiveness. That’s why regular oil and filter changes with SMP oil are crucial to keeping your engine clean and running smoothly.

Regularly checking your vehicle’s oil level is key to maintaining optimal engine performance. The oil keeps all moving parts lubricated, minimizing friction and preventing damage. An SMP oil change service replaces old, dirty oil with clean, high-performance SMP synthetic oil to ensure your engine components continue to function efficiently.

An SMP oil filter collects contaminants during use until it can no longer prevent harmful particles from entering the engine. That’s why it’s generally recommended to change the oil filter at the same time as the SMP oil change.

Oil and filter changes are usually needed every 10,000 miles or once a year, whichever comes first. Replacing both at the same time ensures clean oil can flow freely and provide optimal engine protection until the next service.

Our certified technicians will help you choose the best SMP engine oil for your vehicle according to your manufacturer’s specifications.

Oil and filter changes are included in all Interim, Full, and Major SMP service packages.

An SMP oil filter typically lasts between 5,000 and 8,000 miles, depending on your vehicle type and driving habits. To maintain engine health, it’s advisable to replace your oil filter during every SMP oil change service.

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