--- title: Keller-Heartt News Blog (2) description: Keller-Heartt is the leading online distributor of oils, lubricants, grease, and chemicals for Industrial, Automotive, and Trucking. Free shipping - all orders! (2) --- [![keller-heartt-oil](https://info.kellerheartt.com/hubfs/branding/keller-heartt-logo.200.png)](https://www.kellerheartt.com/) - Shop By Industry - [Trucking & Automotive](https://www.kellerheartt.com/collections/commercial-truck-supplies) - [Diesel Exhaust Fluid](https://www.kellerheartt.com/collections/diesel-exhaust-fluid) - [Motor Oil](https://www.kellerheartt.com/collections/motor-oil) - [Brake Cleaner](https://www.kellerheartt.com/collections/brake-cleaner) - [Antifreeze](https://www.kellerheartt.com/collections/antifreeze-coolants) - [Transmission Fluid](https://www.kellerheartt.com/collections/transmission-fluid) - [Machine Shops & Metalworking](https://www.kellerheartt.com/collections/metalworking-fluids) - [Cutting Oil](https://www.kellerheartt.com/collections/cutting-oil) - [Coolant](https://www.kellerheartt.com/collections/tool-die-coolants) - [Hydraulic Oil](https://www.kellerheartt.com/collections/hydraulic-oil) - [Soluble Oil](https://www.kellerheartt.com/collections/soluble-oil) - [Rust Preventative](https://www.kellerheartt.com/collections/tool-die-rust-veto) - [Industrial](https://www.kellerheartt.com/collections/industrial-products) - [Hydraulic Oil](https://www.kellerheartt.com/collections/hydraulic-oil) - [Industrial Gear Oil](https://www.kellerheartt.com/collections/industrial-gear-oil-all-sizes-brands) - [Multi-Purpose Grease](https://www.kellerheartt.com/collections/multi-purpose-grease) - [Cleaner & Degreaser](https://www.kellerheartt.com/collections/industrial-cleaners-descalers-degreasers) - [Ethylene Glycol](https://www.kellerheartt.com/collections/ethylene-glycol) - [Food & Beverage](https://www.kellerheartt.com/collections/food-grade-oils-lubricants) - [Propylene Glycol](https://www.kellerheartt.com/collections/propylene-glycol-drums) - [Cassida Fluid & Grease](https://www.kellerheartt.com/collections/cassida-lubricants-greases) - [Fuchs Gear Oil & Grease](https://www.kellerheartt.com/collections/fuchs-lubricants) - Shop By Brand - [Shell Products](https://www.kellerheartt.com/collections/shell-oil-lubricants) - [TRUEGARD Products](https://www.kellerheartt.com/collections/truegard-oil-lubricants) - [Blue DEF Products](https://www.kellerheartt.com/collections/bluedef) - [Oil Eater Products](https://www.kellerheartt.com/collections/oil-eater) - [Blog](https://info.kellerheartt.com/blogs) - [Request a Quote](https://www.kellerheartt.com/pages/request-a-quote) [Contact Us](https://www.kellerheartt.com/pages/contact-us) # Keller-Heartt Oil Blog ### Keller-Heartt is the leading online distributor of oils, lubricants, grease, and chemicals for Industrial, Automotive, and Trucking. Free shipping - all orders! ### Subscribe to Our Blog! Oil ### [Why is My Diesel Engine Oil Black After Oil Changes? What's Normal & What's Not](https://info.kellerheartt.com/blogs/why-is-my-diesel-engine-oil-black-after-oil-changes) Your diesel oil color tells a story—from amber to milky white to black. Our experts break down what's normal, what's not, and when it's time to worry. Brian McGrath Aug 19, 2025 Propylene Glycol ### [The Versatile Applications of Propylene Glycol in Food & Beverage Operations](https://info.kellerheartt.com/blogs/propylene-glycol-in-food) How food-grade propylene glycol keeps our favorite foods fresh, tasty, and safe—plus why it’s the behind-the-scenes hero in food and beverage... Brian McGrath Jul 29, 2025 Automotive ### [How to Increase Auto Repair Business: Proven Tips to Attract & Maintain Customers](https://info.kellerheartt.com/blogs/how-to-increase-auto-repair-business) How do you attract & retain customers? We share how to increase auto repair business, from selecting the right products to effectively promoting them. Brian McGrath Jul 23, 2025 Fluid Viscosity ### [Understanding Fluid Viscosity: Grading Systems for Industrial and Automotive Lubricants](https://info.kellerheartt.com/blogs/fluid-viscosity-grades) Fluid viscosity impacts performance, efficiency, & equipment life across industries. Our experts explain grading systems to help you choose the right... Brian McGrath Jun 30, 2025 Cutting Fluids ### [What Are Cutting Fluids? & Exploring the Best Products for Metalworking Shops](https://info.kellerheartt.com/blogs/what-are-cutting-fluids) Find out why they matter and which products boost performance. Our experts share the best cutting fluids for cooler, cleaner, more precise machining. Brian McGrath Jun 26, 2025 Oil ### [Conventional vs. Synthetic Diesel Oil: How to Choose the Right Engine Fluids for Your Fleet](https://info.kellerheartt.com/blogs/conventional-vs-synthetic-diesel-oils) A side-by-side look at conventional vs. synthetic diesel oil for your fleet, examining key factors like cost, fuel efficiency, and change intervals. Brian McGrath May 20, 2025 DEF Shortages ### [Stay Ahead of the DEF Shortages in 2025: What Fleet Managers & Diesel Mechanics Need to Know](https://info.kellerheartt.com/blogs/def-shortages-2025) Don’t get caught off guard—DEF shortages are coming. Discover what's driving them, the market outlook, and how to keep your fleet moving in 2025 &... Brian McGrath May 16, 2025 Glycol Chiller ### [Glycol Chillers: Why Microbreweries Use Them, How They Work, & How to Maintain Them](https://info.kellerheartt.com/blogs/how-do-glycol-chillers-work) Ready to unlock the perfect pours? Discover how glycol chillers keep your beer cold, fresh, and flavorful from tank to tap, plus get expert... Brian McGrath Apr 23, 2025 Fleet Management ### [What is PC-12 Engine Oil? Exploring the New API Requirements for Diesel in 2027](https://info.kellerheartt.com/blogs/what-is-pc-12-engine-oil) Is your fleet prepared for this API diesel engine oil classification? Get details about PC-12 engine oils, including subcategories, testing, & more. Brian McGrath Apr 16, 2025 Diesel Exhaust Fluid ### [Is All Diesel Exhaust Fluid the Same? How to Compare Your Options](https://info.kellerheartt.com/blogs/best-diesel-exhaust-fluid-options) Learn why all DEF aren’t the same, and which one reigns supreme as the best diesel exhaust fluid on the market. Place an order & get free shipping. Brian McGrath Mar 26, 2025 Oil ### [Top 5 Advantages of Oil Eater Cleaner and Degreaser](https://info.kellerheartt.com/blogs/oil-eater-best-cleaner-degreaser) Learn what makes Oil Eater the best degreaser for heavy-duty industrial and automotive applications. Place an order—free shipping on all products. Brian McGrath Mar 19, 2025 Grease ### [What’s the Best Multi-purpose Grease for Industrial Machinery?](https://info.kellerheartt.com/blogs/best-multipurpose-grease-for-industrial-machinery) Enhance the longevity, efficiency, and overall performance of your machinery with these multi-purpose greases. Complete with top features and cost... Brian McGrath Feb 19, 2025 Oil ### [ILSAC GF-7: Understanding the New API Oil Classifications for Passenger Cars](https://info.kellerheartt.com/blogs/transition-to-ilsac-gf7) What you need to know before ILSAC GF-7 oil standards take effect on March 31, 2025. Their purpose, benefits, and compatibility with existing... Brian McGrath Feb 13, 2025 Antifreeze ### [Is All Antifreeze the Same? Everything You Need to Know About Types & Colors](https://info.kellerheartt.com/blogs/is-all-antifreeze-the-same) With so many colors, how do you choose between types of antifreeze? Find out how to identify the best option, plus uncover benefits of multi-vehicle... Brian McGrath Feb 4, 2025 Automotive ### [The Role of Antigel for Diesel Fuel: How It Supports Engine Performance in Freezing Temperatures](https://info.kellerheartt.com/blogs/antigel-for-diesel-fuel-benefits) Keeping fuel flowing is critical during winter months. Investing in a cold weather additive for diesel fuel can prevent downtime and improve engine... Brian McGrath Jan 23, 2025 Metalworking ### [Adapting to New Safety Standards for Injection Molding Equipment](https://info.kellerheartt.com/blogs/adapting-to-new-safety-standards-for-injection-molding-equipment) The right hydraulic oils and lubricants help you stay compliant, reduce risks, and keep your injection molding equipment reliable. Brian McGrath Nov 22, 2024 Lubricant ### [Controlling Oil and Lubricant Inventory in a Metalworking Facility](https://info.kellerheartt.com/blogs/controlling-oil-and-lubricant-inventory-in-a-metalworking-facility) Understanding your current metalworking oil inventory–and matching it to your current and future needs–can help address any gaps or inconsistencies. Brian McGrath Nov 15, 2024 Oil ### [Managing Manufacturing Oil Purchases With Price Volatility](https://info.kellerheartt.com/blogs/managing-manufacturing-oil-purchases-with-price-volatility) The goal for most manufacturers is to insulate themselves from the negative effects of oil price volatility. Here are some steps they can take. Brian McGrath Nov 7, 2024 Automotive ### [An Automotive Manager's Guide to Resolving a Confusing Fluid Ordering Process](https://info.kellerheartt.com/blogs/an-automotive-managers-guide-to-resolving-a-confusing-fluid-ordering-process) Your wholesale oil distributors should be committed to addressing common automotive material problems, and you can help by asking the right... Brian McGrath Oct 25, 2024 B2B & Wholesale ### [Your Fleet's Current Material Needs Will Evolve. Can Your Ordering Process Adapt?](https://info.kellerheartt.com/blogs/your-fleets-current-material-needs-will-evolve.-can-your-ordering-process-adapt) An account-based ordering system offers a sophisticated and efficient approach to managing procurement for fleet applications. Brian McGrath Oct 18, 2024 B2B & Wholesale ### [The Efficient Choice: Benefits of Buying Oils, Fluids, and Lubricants Wholesale](https://info.kellerheartt.com/blogs/the-efficient-choice-benefits-of-buying-oils-fluids-and-lubricants-wholesale) Learn why making the switch to Keller-Heartt’s B2B Account Program for wholesale purchasing could help your business. Brian McGrath Oct 11, 2024 Truegard ### [Truegard Solvent 105 vs. Truegard Safety Solvent 142: Which One is Right for Your Cleaning Needs?](https://info.kellerheartt.com/blogs/truegard-solvent-105-vs.-truegard-safety-solvent-142-which-one-is-right-for-your-cleaning-needs) Compare Truegard Solvent 105 and Truegard Safety Solvent 142 to find the best fit for your industrial cleaning needs. Brian McGrath Sep 20, 2024 BlueDEF ### [Better to be Blue: Improving Diesel Engines With BlueDEF®](https://info.kellerheartt.com/blogs/better-to-be-blue-improving-diesel-engines-bluedef) Not all diesel exhaust fluid is the same. Learn how to improve your diesel engine performance with BlueDEF® from Keller-Heartt Oil. Brian McGrath Sep 13, 2024 Truegard ### [Safe Degreasing: The Impact of Truegard Solvent 142 for Everyday Cleaning](https://info.kellerheartt.com/blogs/safe-degreasing-the-impact-of-truegard-solvent-142-for-everyday-cleaning) It’s vital to keep your equipment clean and clear of buildup. Still, your cleaning efforts shouldn’t harm workers or the environment. Brian McGrath Sep 6, 2024 Fleet Management ### [The Impact of Fuel Additives on Fleets: Keeping a Realistic Approach](https://info.kellerheartt.com/blogs/the-impact-of-fuel-additives-on-fleets-keeping-a-realistic-approach) Fleet managers might use fuel additives as a long-term solution for extending engine lifespan. Replacing a complete engine is more expensive than... Brian McGrath Aug 23, 2024 BlueDEF ### [Calculating Your DEF Needs and Budget](https://info.kellerheartt.com/blogs/calculating-your-def-needs-and-budget) Learn how much DEF your fleet requires to run optimally. Brian McGrath Aug 16, 2024 Diesel Exhaust Fluid ### [Troubleshooting Common DEF Issues in Trucks](https://info.kellerheartt.com/blogs/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... Brian McGrath Aug 9, 2024 Lubricant ### [Why Good Lubrication Matters for Efficient Injection Molding](https://info.kellerheartt.com/blogs/why-good-lubrication-matters-for-efficient-injection-molding) Discover the vital role of lubricants in injection molding for machine longevity and optimal product creation. Brian McGrath Aug 2, 2024 Truegard ### [Grime Buster: The Power of Truegard Solvent 105 for Industrial Cleaning](https://info.kellerheartt.com/blogs/grime-buster-the-power-of-truegard-solvent-105-for-industrial-cleaning) When choosing a solvent for industrial cleaning, make sure that it can tackle the toughest buildup without compromising machine stability or staff... Brian McGrath Jul 26, 2024 Oil ### [Synthetic Oils: Are They Worth the Extra Cost?](https://info.kellerheartt.com/blogs/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. Brian McGrath Jun 21, 2024 [1](https://info.kellerheartt.com/blogs/page/1) [2](https://info.kellerheartt.com/blogs/page/2) [3](https://info.kellerheartt.com/blogs/page/3) ... [4](https://info.kellerheartt.com/blogs/page/4) © 2025 Keller-Heart Oil All rights reserved