Distribution Centers in:
Sacramento, Stockton, Turlock
Merced, Fresno & Tranquillity

Corporate Headquarters:
4895 S. Airport Way, Stockton, CA 95206

Customer Service:
Phone (800) 736-3421
Fax (209) 234-7295

Copyright Van De Pol Enterprises.
All rights reserved.

Created by Marcia Herrmann Design

Anti-Freeze Reference Guide

Not all manufacturers use the same color guide for antifreeze. Please check the vehicle or equipment's manual for the type of antifreeze recommended. 

Green: A conventional ethylene glycol based antifreeze. Typically a low silicate, all-purpose coolant designed for use in both automotive and heavy duty diesel engines (with the use of SCA’s).

  • Examples: ShellZone Concentrate and Ready to Fill (50/50 Pre-Mixed), Pennzoil Antifreeze & Summer Coolant concentrate and Ready to Fill (50/50 Pre-Mixed).

Orange: An Extended Life, single-phase, ethylene glycol based antifreeze based on an extended life carboxylate inhibitor system suitable for use in all types of automotive engines.

  • Examples: ShellZone Dexcool Concentrate and Ready to Fill (50/50 Pre-Mixed), Pennzoil Dex-Cool Extended Life concentrate and Ready to Fill (50/50 Pre-Mixed).

Yellow: A Multi-Vehicle Extended Life, single-phase, ethylene glycol type universal engine coolant based on an extended life technology. Compatible with conventional and extended life antifreeze types thus can be used as top-off with other coolants.

  • Examples: ShellZone Multi-Vehicle Concentrate and Ready to Fill (50/50 Pre-Mixed), Pennzoil Multi-Vehicle Extended Life concentrate and Ready to Fill (50/50 Pre-Mixed).

Purple: A conventional, single-phase, ethylene glycol based heavy-duty diesel engine coolant with silicate, nitrite and molybdate and already contains the initial dose of supplemental coolant additives (SCAs) and is ready for use in initial fill, flush and fill, and top-up applications.

  • Examples: Shell Diesel Ready Fully Formulated concentrate & Ready to Fill (50/50 Pre-Mixed)

Red: A “fill for life” ethylene glycol based coolant for heavy-duty diesel, gasoline & natural gas powered engines.           

  • Examples: Rotella ELC Extended Life Concentrate and Ready to Fill (50/50 Pre-Mixed)