Boss Lubricants Xtreme 15W40 Synthetic Blend Diesel Engine Oil – CK-4, Heavy Duty, 20L Pail
SKU: 50125444735

Boss Lubricants Xtreme 15W40 Synthetic Blend Diesel Engine Oil – CK-4, Heavy Duty, 20L Pail

$107.95 $119.95
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Description

Boss Lubricants Xtreme 15W40 Synthetic Blend Diesel Engine Oil – CK-4, Heavy Duty, 20L PailKeep your engines running strong with Boss Lubricants Xtreme 15W40 Synthetic Blend Diesel Engine Oil. Designed for heavy duty diesel engines, this premium CK 4 oil offers excellent wear protection, high oxidation stability, and superior sludge control. Formulated with Group III base oils and an advanced additive system, Boss 15W40 ensures reliable performance in severe operating conditions while extending engine life. Perfect for fleets, construction

Keep your engines running strong with Boss Lubricants Xtreme 15W40 Synthetic Blend Diesel Engine Oil. Designed for heavy-duty diesel engines, this premium CK-4 oil offers excellent wear protection, high oxidation stability, and superior sludge control.

Formulated with Group III base oils and an advanced additive system, Boss 15W40 ensures reliable performance in severe operating conditions while extending engine life. Perfect for fleets, construction equipment, agriculture machinery, and highway trucks.

✅ Key Benefits:

  • Meets or exceeds API CK-4, CJ-4, CI-4, CH-4

  • Superior sludge and varnish protection

  • Thermal stability & high oxidation resistance

  • Excellent low temperature flow for cold starts

  • Protects against wear, deposits, and corrosion

  • Designed for modern emission control systems (EGR, DPF, SCR)

Specifications (15W40):

  • Density @ 15°C: 0.879 kg/L

  • Kinematic Viscosity @ 40°C: 118 cSt

  • Kinematic Viscosity @ 100°C: 15.7 cSt

  • Viscosity Index: 140

  • Flash Point: 232°C

  • Pour Point: -33°C

  • TBN: 10

  • Ash Sulphate: 0.99%

OEM Approvals / Meets Requirements:

  • Caterpillar: ECF-3 / ECF-1

  • Volvo: VDS-4.5/4/3/2

  • Mercedes-Benz: 228.31, 228.3

  • MAN: M-3575, 3275

  • Cummins: 20086, 20081, 20071, 20072, 20076, 20077, 20078

  • Detroit Diesel: 93K222/228/15/14

  • Ford: WSS-M2C171-F1

  • Renault: RLD-4, RLD-3

  • Allison: C-4/3

  • Global DHD-1

  • JASO DH-2

Package Size:

  • 20 Liter Pail

Safety Data Sheet

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50125444735

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4.9 ★★★★★
Based on 457 reviews
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A
Verified Purchase
Adan Licea
Fort Morgan, US
★★★★★ 5
Good Mop for home use
It’s been a really nice steam mop to have. It heats up quick and it produces a good amount of steam. The handle is sturdy. The extra mop pad is extremely useful. The swivel is also quite nice; letting me get those spots at different angles. The water tank has a good capacity for the jobs. More than enough for what I’ll be using it for; like the kitchen and living rooms. Another plus is how lightweight it is compared to other mops I’ve used. Overall, really good value for a steam mop.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
M
Verified Purchase
MishMishK
Whiting, US
★★★★★ 5
Works good for me.
Very easy to put together. Holds plenty of water to mop a large area. Comes with 2 microfiber pads that are washable. Didn’t leave a lot of water on the floor. My floor dried quickly especially with the ceiling fan on. You do have to vacuum debri up first then mop. Nice attachment to steam clean other things in the house if needed. Does a good job for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
S
Verified Purchase
Steluța
Fort Morgan, US
★★★★★ 5
Powerful Steam Mop for Easy Deep Cleaning.
Color: White, Color: White
I’m very happy with this steam mop! It heats up quickly and cleans my floors really well without using harsh chemicals. The detachable handheld steamer is super useful for cleaning bathrooms, kitchen corners, and even windows. I also like the long power cord and the different attachments that make cleaning easier. Lightweight, easy to use, and a great value for the price! If you have a small kids or baby it’s impossible to keep the floor clean, because they are dropping all the time milk, water, juice but this steam mop help me a lot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
G
Verified Purchase
GB
Carnegie, US
★★★★★ 5
Light Steam Mop
Color: White
I’ve been using this steam mop around the house and it’s been pretty decent. It heats up fast and the steam is strong enough to lift the usual kitchen and hallway mess without me scrubbing forever. The water tank isn’t huge, but it lasts long enough for a quick clean of a couple rooms. The handheld part is actually useful. I’ve used it on the bathroom tiles and around the stove, and it does a better job than sprays. It’s light enough, though after a while you feel it a bit in the wrist. The long cord helps so I’m not constantly unplugging it. The mop pads stay on and wash fine. The only thing that bugs me is the head doesn’t swivel as smoothly as I expected, so getting under low furniture takes a bit of angling. Overall, it’s a good everyday steam mop.
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Reviewed in the United States on May 21, 2026
P
Verified Purchase
Paola Lameda
Phoenix, US
★★★★★ 5
I think the quality and price are fantastic
Color: White, Color: White
An excellent steam cleaner—very easy to use, removing stains in just one or two passes. It is quite lightweight, which makes cleaning much easier. It comes with various accessories for cleaning different surfaces. I think the quality and price are fantastic.
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Reviewed in the United States on May 25, 2026

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