Keller-Heartt Oil Blog

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Diesel Exhaust Fluid

Troubleshooting Common DEF Issues in Trucks

Troubleshoot common Diesel Exhaust Fluid (DEF) issues in trucks, learn best practices for maintenance, and ensure your fleet runs smoothly and...

motor oil

Synthetic Oils: Are They Worth the Extra Cost?

Find out if synthetic oils are worth the cost by examining benefits, performance, protection, and longevity. Learn what's best for your vehicle.

Oil

Synthetic vs. Mineral Oil

Learn the differences between synthetic and mineral oil to make an informed decision for your vehicle. Explore the pros and cons to choose the right...

BlueDEF

FAQs About Diesel Exhaust Fluid Storage

With the rising popularity of diesel exhaust fluid (DEF) comes ample questions about this vital automotive fluid. Read on for answers to our FAQs.

Oil

Metalworking Oils for Peak Performance

Unlock peak performance, efficiency, and longevity for your metalworking operations with expert insights on essential oils.

Truegard

How to Best Use Mineral Spirits

Commonly used as a paint thinner, degreaser, and surface cleaner, mineral spirits have many effective uses for your shop, garage, or industrial...

Propylene Glycol

When is Food-Grade Propylene Glycol Required?

There is food-grade and industrial-grade propylene glycol. Understand the differences and when you should be using which one.