1-800-748-5781
“Serving you from 11 warehouses
across North America”

Why Pay Retail?
Oil Depot - AMSOIL Dealer Serving Canada & US
Oil Depot - AMSOIL Dealer Serving Canada & US
  • Home
  • Wholesale Options
    • Canadian Wholesale Options
    • US AMSOIL Wholesale Options
  • Products
    • Synthetic Motor Oils
      • Gasoline Engine Oils
      • Diesel Engine Oils
      • Natural Gas Engine Oils
      • Motorcycle, Snowmobile, Boat, ATV
    • Drivetrain Oils
      • Transmission Fluids
      • Gear Lubes
    • Filters
      • Oil, Air, Transmission, More
      • Amsoil Add-On By-Pass Oil Filters
    • Greases & Hydraulic Fluids
      • Amsoil Hydraulic Oil & Grease Products
      • Synthetic Multi-Vehicle Power Steering Fluid (PSF)
      • Shock Therapy Suspension Fluid #5 Light (STL), #10 Medium (STM)
    • More AMSOIL Products
      • Industry/Manufacturing/Compressor
      • Fuel Additives & Gasoline Stabilizers
      • Auto Cleaning Products, Degreaser and Carb Cleaner
      • Spray & Chain Lubes
      • Antifreeze/Coolant
      • Oil Analysis Kits
  • Applications
    • Vehicle Look-Up Tool
    • Motorcycle, Dirt Bike & ATV
    • Cars & Light Trucks
    • Diesel Engine Oil
    • Snowmobile Products
    • Outboards & Marine
    • Racing & High Performance
    • Motorhomes & RVs
    • Compressor Oil
    • Construction
    • Agriculture
    • Logging Industry
    • Personal Watercraft
    • Lawn & Garden
  • Blog
  • Ordering Info
  • About Us
    • Contact
    • Reviews
  • Request AMSOIL Prices
  • Search
  • Menu Menu

Base Oil Categories And Definitions

Base Oil Category Sulfur (%) Saturates (%) Viscosity Index
Group I   >0.03 and/or <90 80 to 120
Group II   <0.03 and >90 80 to 120
Group III   <0.03 and >90 >120
Group IV   All polyalphaolefins (PAOs) . . .
Group V   All others not included in Groups I, II, II or IV (Esters) .

 

Base Oil Category Manufacturing Method Oil Characteristics
Group I Solvent Freezing Group I base oils are the least refined of all of the groups. They are usually a mix of different hydrocarbon chains with little or no uniformity. Due to their instability and poor overall properties, most of today’s engine oils use very little, if any, Group I base oils.  They are generally used in less demanding applications.
Group II Hydroprocessing and Refining Group II base oils are common in mineral-based motor oils currently available on the market. They have improved lubricating performance over Group I base oils in areas such as volatility and oxidative stability. They have fair to poor performance in areas such as pour point and cold crank viscosity.
Group III Severe Hydroprocessing and Catalytic Dewaxing Group III base oils are subjected to the highest refining levels and while they originate from crude oil, they are chemically rearranged to offer molecular uniformity and stability for very good performance in a wide range of lubricating properties. They are commonly marketed as synthetic or mixed with lower group base oils and marketed as semi-synthetic products. Group III base oil products are increasing in popularity.
Group IV Chemical Reactions Group IV Polyalphaolefins (PAOs) are chemically engineered synthetic base stocks.  When combined with additives, they offer excellent performance over a wide range of lubricating properties. They have very stable chemical compositions and highly uniform molecular chains. Group IV base oils are commonly found in automotive and industrial applications.
Group V As Indicated Group V base oils include all remaining non-synthetic and synthetic oils such as white oils, esters, silicones, and polyalkylene glycols. Esters are common Group V base oils used in lubricant formulations.  Esters exhibit a wide variety of properties specific to each individual product.  They are often used like additives to enhance the properties of other base oils.

 

Wholesale Price List Request

  • To fight spam, we require you to answer this easy question before submitting the form.
  • Personal contact information will only be used to provide requested information or assistance. You will not be enrolled in advertising or marketing programs and your information will not be shared or sold.
  • This field is for validation purposes and should be left unchanged.

WHY SHOP HERE?

FREE SHIPPING

Free shipping options for all wholesale account types


FAST SHIPPING

Fast shipping from 2 warehouses in Canada and 11 in the USA.


SECURE

Secure telephone or online ordering options. PayPal is now a payment option.


WHOLESALE

Wholesale buying programs for individuals, retailers and commercial/industrial customers.


CUSTOMER SERVICE

Customer service is our #1 priority. We are a Better Business Bureau member with an A+ rating.


EXPERIENCE

We have been an AMSOIL dealer and distributor since 2001, so we have the know-how to deliver expert product support.

AMSOIL Dealer Serving
Canada & US

Oil Depot Accredited Business of the Better Business Bureau

Marc Roden
Independent Dealer

1-800-748-5781
[email protected]

  • Facebook
  • Twitter
  • Mail
  • YouTube

Recent Posts

  • Low-Ash 5W-20 Motor Oil For Generac LP Engine
  • Can 15W-60 Motorcycle Oil Replace SAE 60?
  • 2025 Arctic Cat Snowmobile 2-Stroke And 4-Stroke Engine Oil Options

Brands

More Oil Depot Info

  • What’s New
  • Interesting Articles
  • AMSOIL Company Information
  • HOME
  • Contact Us
  • About Us
  • Products
  • Applications
  • Wholesale Options
  • Ordering Info
  • FAQs
  • Sitemap

 

Copyright © 2001 - 2024 · Oildepot.ca - All rights reserved. Return Policy | Privacy & Payment Policy
Scroll to top