Skip to Content
Keller-Heartt has Truegard Propylene Glycol Heat Transfer Fluids in both Inhibited and Food Grade! Order Today!
Propylene Glycol Available. Order Today!
Request a Quote B2B Account Program Government Sales Shipping Policy

Frequently asked questions

Find answers to common questions about our products and services

  • T04 refers to a fluid specification that defines performance requirements for certain automatic transmissions. If your equipment manufacturer or transmission service manual specifies T04-rated fluid, this product is designed to meet that requirement. Confirm the required specification in your equipment's service documentation before use.

  • SAE 30 is a single-grade, straight-weight viscosity rating, meaning the fluid maintains a consistent viscosity rather than adjusting across a wide temperature range like a multi-grade oil would. This makes it suited for equipment operated within moderate and stable temperature conditions where the OEM specifies a straight 30-weight fluid.

  • A 55-gallon drum is designed for high-volume users such as fleet operations, heavy equipment service shops, or facilities that regularly service multiple units requiring T04 fluid. It reduces per-unit cost and minimizes the need for frequent reordering compared to smaller container sizes.

  • This is a ready-to-use transmission fluid and should be used as supplied without dilution or mixing with other fluids, as doing so could alter its viscosity or compromise its T04 performance specification.

  • Drums should be stored in a cool, dry location away from direct sunlight and moisture, and kept tightly sealed when not in use to prevent contamination. Store upright or on their side with the bungs positioned to minimize the risk of water ingress.

Key Features

  • Designed to meet the T04 (Allison C-4/TES-295) transmission fluid specification for automatic transmissions that call for T04-rated fluid.

  • SAE 30 single-grade, straight-weight viscosity maintains consistent performance suited for equipment operated in moderate and stable temperature conditions where the OEM specifies a straight 30-weight fluid.

  • Ready to use as supplied with no dilution or mixing required; altering the fluid could compromise its T04 performance specification.

  • 55-gallon drum format is ideal for high-volume users including fleet operations and heavy equipment service shops, reducing per-unit cost and minimizing reorder frequency.

  • Store in a cool, dry location away from direct sunlight and moisture, keeping the drum tightly sealed when not in use to prevent contamination.