MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 135,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
Upload a Protoype Part
Phillips 66 76® Lubricants Firebird NG SAE Grade 15W-40  (discontinued **)
Categories: Fluid; Lubricant

Material Notes: 76® Firebird NG is a high-quality, environmentally responsible, dispersant-detergent gas engine oil specially designed for use in vehicular natural gas engines that have slider-follower valve trains. It is formulated with a higher level of antiwear additives than conventional low-ash gas engine oils to meet the enhanced wear protection requirements of diesel engines converted to natural gas service. It is particularly recommended for use in transit buses, school buses, delivery trucks and other vehicles equipped with Cummins, Detroit Diesel or John Deere CNG or LNG engines. Firebird NG is formulated with greater than 60% high-quality re-refined base stocks. It provides outstanding oxidation and nitration resistance, excellent wear protection, and protection against rust and corrosion. It minimizes the formation of sludge and deposits for good engine cleanliness, and protects against valve stem deposits and valve seat recession, resulting in reduced maintenance and extended engine life. It also has good resistance to foaming and aeration. The use of re-refined base stocks helps lessen the environmental impact of disposal of used oil.


  • Transit buses, school buses, delivery trucks and other vehicles equipped with slider-follower CNG or LNG engines
Firebird NG is OEM-certified for:
  • Cummins CES 20074
Firebird NG meets the performance requirements of:
  • Detroit Diesel Series 50G and Series 60G engines
  • John Deere 6.8L and 8.1L CNG engines
  • Excellent wear protection for diesel engines converted to natural gas service
  • High dispersancy protects against sludge and varnish formation
  • Outstanding resistance to oxidation and nitration
  • Protects against scuffing and wear
  • Protects against valve stem deposits and valve seat recession
  • Protects against rust and corrosion
  • Good foam resistance
  • Lessens the environmental impact of disposal of used oils

Information provided by Phillips 66 Lubricants. The 76® Lubricants brand name was consolidated into other Phillips 66 brands in 2016; many products remain available under a new name.

Available Properties
  • Specific Gravity
  • Density
  • Viscosity, Cold Cranking
  • Viscosity Measurement, Index
  • Kinematic Viscosity at 40°C (104°F)
  • Kinematic Viscosity at 100°C (212°F)
  • Ash, ASTM D874, Sulfated
  • ASTM Color, ASTM D1500
  • Total Base Number, ASTM D2896
  • Pour Point
  • Flash Point, COC
  • Phosphorous, P
  • Zinc, Zn
Property Data

This page displays only the text
of a material data sheet.

To see MatWeb's complete data
sheet for this material (including
material property data, metal
compositions, material suppliers,
), please click the button below.

Manufacturer Notes:

Category Notes

Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

Users of our Advanced Search (registration required) may exclude discontinued materials from search results.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.


Polymer Distribution
Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2020 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.