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Blue Diamond Severe Duty GEAR OIL

$19.95 - $69.95

Blue Diamond Severe Duty GEAR OIL

(16 customer reviews)

SEVERE DUTY GEAR OILS

100% PAO FORMULAS!

Infused with FR3 Nano Lubricant Technology

  • 100% SATISFACTION or your money back
  • GUARANTEED not to void your manufacturer’s warranty
  • 1 QT 75W-90 S9
  • 1 QT 80W-110 S11
  • 1 QT 85W-140 S14
  • 1 GAL 75W-90 S9
  • 1 GAL 80W-110 S11
  • 1 GAL 85W-140 S14
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LOWERS OPERATING TEMPERATURE
BLUE DIAMOND SEVERE DUTY GEAR OIL improves thermal stability and friction reduction, protecting against varnish and sludge deposits

REDUCES WEAR
BLUE DIAMOND SEVERE DUTY GEAR OIL is infused with our patented FR3 Nano Technology which helps increase boundary layer protection and improves film strength for extra protection

REDUCES SHEARING
BLUE DIAMOND SEVERE DUTY GEAR OIL reduces shearing under severe duty applications, allowing the oil to remain in specifications for peak performance

IMPROVES OXIDATION STABILITY
BLUE DIAMOND SEVERE DUTY GEAR OIL was formulated specifically for severe duty applications, helping reduce breakdown, lowering oil consumption and extending gear oil change intervals

BLUE DIAMOND SEVERE DUTY GEAR OIL was formulated for severe duty applications. The gear oil additive formulas are based on 100% poly-alpha-olefin (PAO) Group IV and high-quality Group V synthetic oils. The infusion of our patented FR3 Nano Technology and high zinc additive package extends the performance and anti-wear protection to levels unmatched by any other gear oil on the market. BLUE DIAMOND heavy duty gear oil also provides increased oxidation and thermal stability, deposit and sludge prevention, reduced oil breakdown, high wear resistance and longer drain intervals. BLUE DIAMOND heavy duty gear oil is recommended as a gear oil for any demanding severe duty application, such as towing, hauling, challenging terrain driving, commercial use, utility vehicles, heavy equipment, tractors, motor homes, and other severe duty vehicles.

HOT SHOT’S SECRET STANDS BEHIND ITS PRODUCTS

THE BEST MONEY-BACK GUARANTEE IN THE INDUSTRY

No other diesel oil or fuel additive has a better guarantee than Hot Shot’s Secret products. If our products do not deliver as promised, then we will give you your money back. End of story.

85W-140 Blue Diamond S14 SDS

80W-110 Blue Diamond S11 SDS

75W-90 Blue Diamond S9 SDS

85W-140 Blue Diamond S14 Tech Data

80W-110 Blue Diamond S11 Tech Data

75W-90 Blue Diamond S9 Tech Data

Share your thoughts!

5 out of 5 stars

16 reviews

Let us know what you think...

What others are saying

  1. Question

    Gerry Rose

    Hello, We have a 2018 RAM 2500, 6.7 stock not deleted with limit slip rear diff. 55K miles tow a 35 foot fifth wheel about 25 % of the time. I’m changing the rear diff oil. Question, RAM recommends SAE 75W-85 what would you recommend and why? Actually switching to all your oils/fluids, how about engine oil, transmission fluid, transfer case oil and coolant recommendations? Thanks much, Happy New Year!

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    • R&D

      R&D

      Our 80w110 S11 gear oil would be ideal for your truck; for the engine run our Blue Diamond series 15w40 oil, and our atf+4 for the transmission assuming it is an automatic. Thanks!

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  2. Zach

    Best product around!!

    Zach (verified owner)

    Love using your stuff. I run your stuff in everything on my truck. Great product!!

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    • Hot Shot's Secret

      Hot Shot’s Secret

      Thanks Zach!

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  3. trh1003

    trh1003 (verified owner)

    I do believe that this was a contributing factor in the mpg gain that I recently noted. I switched to this gear oil in September (and about 15k miles ago) and there is a huge difference in how freely the truck moves

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    • Hot Shot's Secret

      Hot Shot’s Secret

      Thank you!

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  4. Question

    Donavon Wilson

    I have a 2013 Ram 2500 deleted and I use it as a daily driver. It’s still on the stock delete tune and I don’t tow much at all. What’s the best weight for me to get that will help in all seasons? Thanks!!!

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    • R&D

      R&D

      75w90 if you’re not towing heavy or often, thanks!

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  5. Question

    Mark Mouty (verified owner)

    Recently ordered the Blue Diamond 85W-140 gear oil on my Ford F250 with a Sterling 10.5 limited slip differential. Will I need to add the Ford XL3 friction modifier additive for this limited slip differential? BTW, love all the Hot Shot Secret products. Have been using them for years.

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    • Levi

      Levi

      Yes, we still advise using any factory-recommended limited-slip additives, even with our gear oil… thanks!

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