20 Best 80w140 Gear Oil [2024]

Are you looking for the best 80w140 Gear Oil? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 80w140 Gear Oil.

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# Preview Product
1 Ultra1Plus SAE 80W-140 Synthetic Gear Oil API GL-5 | 5 Gallon Pail Ultra1Plus SAE 80W-140 Synthetic Gear Oil API GL-5 | 5 Gallon Pail
2 Castrol - 15B811 37517 Syngear 80W-140 Gear Lubricant - 35 lb. Castrol - 15B811 37517 Syngear 80W-140 Gear Lubricant - 35 lb.
3 Redline 58104 80W140 GL5 Gear Oil 1quart Redline 58104 80W140 GL5 Gear Oil 1quart
4 S&S Cycle High Performance Synthetic Big Twin Gear Oil - SAE 80W-140 - 1 Qt. 153756 S&S Cycle High Performance Synthetic Big Twin Gear Oil - SAE 80W-140 - 1 Qt. 153756
5 Nitro Gear NPLUBE-CASE-FSJK Fits 80W-140 Synthetic Plus Gear Oil GL5 12 Quarts Case Nitro Gear &... Nitro Gear NPLUBE-CASE-FSJK Fits 80W-140 Synthetic Plus Gear Oil GL5 12 Quarts Case Nitro Gear &...
6 Schaeffer Manufacturing Co. 0214S-040 Supreme One for All Gear Lube, 80W-140, 40 lb. Pail Schaeffer Manufacturing Co. 0214S-040 Supreme One for All Gear Lube, 80W-140, 40 lb. Pail
7 DOXA 80W140 Full Synthetic Gear Oil 5 Gallon DOXA 80W140 Full Synthetic Gear Oil 5 Gallon
8 Red Line 80w140 Gear Oil - Quart (Case 12 Bottles) Red Line 80w140 Gear Oil - Quart (Case 12 Bottles)
9 Starfire Premium Lubricants SF F/S 80W140 GL 5 Gallon Full Synthetic Gear Lubricant, 5 gal Pail Starfire Premium Lubricants SF F/S 80W140 GL 5 Gallon Full Synthetic Gear Lubricant, 5 gal Pail
10 Nitro Gear NPLUBE-FSJK Fits 80W-140 Synthetic Plus Gear Oil GL5 1 Quart Nitro Gear & Axle NPLUBE Nitro Gear NPLUBE-FSJK Fits 80W-140 Synthetic Plus Gear Oil GL5 1 Quart Nitro Gear & Axle NPLUBE
11 Red Line 58104-12PK 80W140 Synthetic Gear Oil - 1 Quart, (Pack of 12) Red Line 58104-12PK 80W140 Synthetic Gear Oil - 1 Quart, (Pack of 12)
12 Thrive 80W140 Gear Oil Full Synthetic - 5 Gallon Pail Thrive 80W140 Gear Oil Full Synthetic - 5 Gallon Pail
13 Red Line 80W140 GL-5 Gear Oil Quart (rl58104) Red Line 80W140 GL-5 Gear Oil Quart (rl58104)
14 Blud Racing Pro Series RED Gear Oil 80W140 100% Synthetic Limited Slip Oil for Differentials,... Blud Racing Pro Series RED Gear Oil 80W140 100% Synthetic Limited Slip Oil for Differentials,...
15 Lucas 10045 Heavy Duty 85/140 Gear Oil - 1 Gallon Lucas 10045 Heavy Duty 85/140 Gear Oil - 1 Gallon
16 Lucas Oil 10042 SAE 85W-140 Heavy Duty Gear Oil Pack of 2 Lucas Oil 10042 SAE 85W-140 Heavy Duty Gear Oil Pack of 2
17 Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 QT Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 QT
18 Valvoline High Performance SAE 85W-140 Gear Oil 1 QT Valvoline High Performance SAE 85W-140 Gear Oil 1 QT
19 Ultra1Plus SAE 85W-140 Gear Oil API GL-5 | 5 Gallon Pail Ultra1Plus SAE 85W-140 Gear Oil API GL-5 | 5 Gallon Pail
20 Royal Purple 01303 Max Gear 85W-140 High Performance Synthetic Automotive Gear Oil - 1 qt. Royal Purple 01303 Max Gear 85W-140 High Performance Synthetic Automotive Gear Oil - 1 qt.
Bestseller No. 1
Ultra1Plus SAE 80W-140 Synthetic Gear Oil API GL-5 | 5 Gallon Pail
  • ✅ Provides excellent oxidation stability under severe operation conditions and high temperatures.
  • ✅ Prevents corrosion and rust formation.
  • ✅ Reduces the formation of varnish and sludge caused by high temperature oxidation.
  • ✅ Excellent viscometric properties at low temperatures that provides fluidity during cold starts.
  • ✅ Provides greater gear protection under severe operating conditions.
Bestseller No. 2
Castrol - 15B811 37517 Syngear 80W-140 Gear Lubricant - 35 lb.
  • Contains 100 percent synthetic base stocks for outstanding oxidation control and thermal stability for improved fuel economy and longer equipment life
  • Premium additive package protects and inhibits rust, corrosion, and wear to protect against premature bearing failure and gear tooth wear
  • Excellent shear stability protects against viscosity loss to safely extend service intervals
  • New formulation with improved low temperature properties, shear stability and fuel economy
  • Meets API GL-5, MT-1, MIL PRF 2105E, SAE J2360, Mack GO-J Plus, International TMS 6816 requirements
Bestseller No. 4
S&S Cycle High Performance Synthetic Big Twin Gear Oil - SAE 80W-140 - 1 Qt. 153756
  • Full-synthetic formula resists shear and extends life
  • For use in Big Twin transmission/ gear box
  • Meets GL-5, MT-1 specifications
  • Available in quart bottles, 12 per case; sold each
  • Made in the U.S.A.
Bestseller No. 5
Nitro Gear NPLUBE-CASE-FSJK Fits 80W-140 Synthetic Plus Gear Oil GL5 12 Quarts Case Nitro Gear &...
  • Designed to deliver trouble-free, consistent performance
  • Right for your vehicle and lifestyle
  • Made from high-quality materials for ultimate durability
  • Manufactured to meet or exceed strict quality requirements
  • If you have any questions or need fitment information for your vehicle, please contact with us
Bestseller No. 6
Schaeffer Manufacturing Co. 0214S-040 Supreme One for All Gear Lube, 80W-140, 40 lb. Pail
  • Strong protection against wear for gears, bearings and seals
  • Enhanced gears, bearings and seals cleanliness
  • Capable of withstanding pressures up to 500,000 psi
  • Forms a fine film that lasts – regardless of how thoroughly it’s wiped away
  • Compatibility with all types of seals
Bestseller No. 9
Starfire Premium Lubricants SF F/S 80W140 GL 5 Gallon Full Synthetic Gear Lubricant, 5 gal Pail
  • Provides excellent protection against wear under extreme pressure and high torque operation
  • High resistance to thermal breakdown
  • Helps prevent foaming, rust, and corrosion
  • Smooths and quiets operation
  • Protects against oxidative degradation
Bestseller No. 10
Nitro Gear NPLUBE-FSJK Fits 80W-140 Synthetic Plus Gear Oil GL5 1 Quart Nitro Gear & Axle NPLUBE
  • Designed to deliver trouble-free, consistent performance
  • Right for your vehicle and lifestyle
  • Made from high-quality materials for ultimate durability
  • Manufactured to meet or exceed strict quality requirements
  • If you have any questions or need fitment information for your vehicle, please contact with us
Bestseller No. 11
Red Line 58104-12PK 80W140 Synthetic Gear Oil - 1 Quart, (Pack of 12)
  • Great use in commercial trucks that climb long, steep grades and hills
  • Great gear protection
  • Reduces excessive noise and vibrations
  • Reduce wear and tear
Bestseller No. 14
Blud Racing Pro Series RED Gear Oil 80W140 100% Synthetic Limited Slip Oil for Differentials,...
  • EXCEEDS API GL-5 Specs
  • EXCEPTIONAL thermal stability
  • EXTENDED drain intervals
  • FORMULATED for clutch type limited slip differentials
Bestseller No. 15
Lucas 10045 Heavy Duty 85/140 Gear Oil - 1 Gallon
  • Fit type: Vehicle Specific
  • Package Dimensions: 31.0 H x 15.0 L x 15.0 W (centimeters)
  • Country of Origin : China
  • Package Weight: 7.892 pounds
Bestseller No. 17
Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 QT
  • Formulated To Maintain Excellent Low Temperature Fluid Protection
  • Helps Provide Outstanding Thermal Stability For Cleanliness And Longer Service Life
  • Contains Special Additives To Assist In Protecting Gear Teeth From Rust And Corrosion And Reduce Chattering In Limited-Slip Differentials
  • Recommended For Conventional And Limited Slip Differentials And Non-Synchronized Manual Transmissions Where Api Gl-5 Or Api Gl-4 Fluid Is Specificed
SaleBestseller No. 18
Valvoline High Performance SAE 85W-140 Gear Oil 1 QT
  • Protects against severe temperatures to help extend service life
  • Formulated with extreme-pressure additives to minimize gear wear from shock loads
  • Helps protect against gear wear from scuffing, scouring, corrosion and pitting
  • Recommended for conventional hypoid differentials and non-synchronized manual transmissions in passenger cars, light trucks, sport utility vehicles,...
Bestseller No. 19
Ultra1Plus SAE 85W-140 Gear Oil API GL-5 | 5 Gallon Pail
  • ✅ Provides excellent oxidation stability under severe operation conditions and high temperatures.
  • ✅ Prevents corrosion and rust formation.
  • ✅ Reduces the formation of varnish and sludge caused by high temperature oxidation.
  • ✅ Excellent viscometric properties at low temperatures that provides fluidity during cold starts.
  • ✅ Provides greater gear protection under severe operating conditions.
Bestseller No. 20
Royal Purple 01303 Max Gear 85W-140 High Performance Synthetic Automotive Gear Oil - 1 qt.
  • For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
  • Greater wear protection for severe service performance
  • High temperature performance low temperature fluidity
  • Excellent water separation which prevents corrosion
  • Lower coefficient of friction

Having trouble finding a great 80w140 Gear Oil?

This problem is well understood by us because we have gone through the entire 80w140 Gear Oil research process ourselves, which is why we have put together a comprehensive list of the best 80w140 Gear Oils available in the market today.

After hours of searching and using all the models on the market, we have found the best 80w140 Gear Oil for 2023. See our ranking below!

How Do You Buy The Best 80w140 Gear Oil?

Do you get stressed out thinking about shopping for a great 80w140 Gear Oil? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 80w140 Gear Oil, which is why we have assembled a comprehensive list of the greatest 80w140 Gear Oil available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 80w140 Gear Oil that you consider buying. Your questions might include the following:

  • Is it worth buying an 80w140 Gear Oil?
  • What benefits are there with buying an 80w140 Gear Oil?
  • What factors deserve consideration when shopping for an effective 80w140 Gear Oil?
  • Why is it crucial to invest in any 80w140 Gear Oil, much less the best one?
  • Which 80w140 Gear Oil are good in the current market?
  • Where can you find information like this about 80w140 Gear Oil?

We’re convinced that you likely have far more questions than just these regarding 80w140 Gear Oil, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 80w140 Gear Oil, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 80w140 Gear Oil. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 80w140 Gear Oil buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 80w140 Gear Oil currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 80w140 Gear Oil has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 80w140 Gear Oil?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 80w140 Gear Oil.
  5. Customer Ratings: Number ratings grade 80w140 Gear Oil objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 80w140 Gear Oil.
  7. Product Quality: You don’t always get what you pay for with an 80w140 Gear Oil, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 80w140 Gear Oil is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 80w140 Gear Oil information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 80w140 Gear Oil is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Is 80w140 the same as engine oil?

A: 80w140 is close to the same as 20/50 engine oil. They measure gear lube and engine oil in a different way. I have often wondered about how it would effect clutch. So being the way I am I pick some up and will be putting it maybe tomorrow. Dyno oil gear lube and clutch plates don’t play well together.

Q: What kind of oil is in a 75w80?

A: So their SAE 75w80 Synthetic API GL-4 gear oil is also the same as 30w, 5w30, or 10w30 motor oil when used in gear oil applications. It pours about like 0w30 Mobil 1 motor oil.

Q: Why choose Mobil Delvac 1 gear oil 80W-140?

A: The state-of-the-art technology in Mobil Delvac 1 Gear Oil 80W-140 delivers unsurpassed performance for low and high temperature application, protection against thermal degradation and oxidation, reduced wear and corrosion, improved shear stability, extended service capability, and excellent fuel economy.

Q: How thick is 80W-140?

A: Not any that I’ve seen. 80w140 is thick. Almost as thick as snot. Pour a bottle of 80-140 syn and a bottle of 20/50 engine oil syn and see if you see a difference , you won’t. Never have gotten a good reason why they use different systems to measure them. I just added the HD 80W-140 to my primary.