--- title: Keller-Heartt News Blog | Fleet Management description: Fleet Management | Keller-Heartt is the leading online distributor of oils, lubricants, grease, and chemicals for Industrial, Automotive, and Trucking. 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Free shipping - all orders! ### Subscribe to Our Blog! 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 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 Oil ### [Your Trusted Shell Prestige Licensed Distributor](https://info.kellerheartt.com/blogs/your-trusted-shell-prestige-licensed-distributor) Discover why Keller-Heartt Oil, Wisconsin's only Shell Prestige distributor, delivers top-quality lubricants for peak industrial performance. Brian McGrath Apr 8, 2024 Oil ### [Shell Rotella: Leading the Next Generation of Heavy Duty Motor Oil](https://info.kellerheartt.com/blogs/shell-rotella-leading-the-next-generation-of-heavy-duty-motor-oil) With a focus on superior wear protection and engine cleanliness, Shell Rotella® has become an ally for fleet managers faced with long distances and... Brian McGrath Jan 5, 2024 Oil ### [The Best Fleet Oil to Protect Against Extreme Cold](https://info.kellerheartt.com/blogs/the-best-fleet-oil-to-protect-against-extreme-cold) When your vehicle fleet operates within a tough climate, it’s essential to make sure you’ve got the right fleet oil for the job. Brian McGrath Dec 8, 2023 Diesel Exhaust Fluid ### [The Best Trucking Fluids to Buy in Bulk](https://info.kellerheartt.com/blogs/the-best-trucking-fluids-to-buy-in-bulk) Fleet managers can save significant money by buying fluids in bulk. Here are the top ones to stock up on and make sure your fleet is always running... Brian McGrath Nov 3, 2023 Brake Cleaner ### [Truegard Brake Cleaner vs. Zepp Z-Maxx](https://info.kellerheartt.com/blogs/truegard-brake-cleaner-vs.-zepp-z-maxx) Truegard Brake Cleaner holds its own against Zepp Z-Maxx Brian McGrath Oct 6, 2023 Oil ### [What Do CK-4 Oils Mean for Your Fleet?](https://info.kellerheartt.com/blogs/what-does-ck-4-oil-mean-for-your-fleet) The climate is getting hotter and so are modern engines. Learn about how CK-4 improves fuel economy, keeps up with changing engine technology, and... Brian McGrath Sep 8, 2023 Fleet Management ### [The ROI of Synthetic Oil for Your Fleet](https://info.kellerheartt.com/blogs/the-roi-of-synthetic-oil-for-your-fleet) From reducing maintenance costs to boosting fuel efficiency, see how switching to synthetic motor oil can boost your fleet’s performance and save you... Brian McGrath Aug 18, 2023 © 2025 Keller-Heart Oil All rights reserved