Every diesel engine oil claims to be the best. But when you’re pulling heavy, running long hours and paying today’s fuel and repair bills, marketing doesn’t matter. Results do. We compared some of the most recognized diesel engine oils used by owner-operators and fleets across North America, including AMSOIL, Shell Rotella, Mobil Delvac, Chevron Delo and Valvoline Premium Blue. Wear protection. Drain intervals. Cold-weather performance. Engine cleanliness. Real-world value. See how they stack up: rfr.bz/td414b8 What oil are you running in your truck right now? #SemiTruckOil #OwnerOperator #TruckingLife #DieselEngine #FleetMaintenance #TruckDriver #DieselPerformance #AMSOIL #ShellRotella #MobilDelvac

AMSOIL Synthetic CVT Fluid isn't just another transmission fluid. It was engineered specifically for continuously variable transmissions and features published anti-shudder durability testing, documented wear protection and a 100,000-mile field trial. If your Nissan, Honda, Toyota, Subaru or other CVT-equipped vehicle is due for service, this page covers compatibility, testing data, service information and buying options. rfr.bz/t010c36 #AMSOIL #CVT #TransmissionFluid #Nissan #Honda #Toyota #Subaru #SyntheticLubricants #AutoMaintenance

AMSOIL's Chairman just told dealers: the 2026 lubricant supply crisis is worse than COVID. No end in sight. Market-wide supply could drop 40%. Multiple brands already allocating customers. What it means. What to do. No panic — just facts. 👉 vyscocity.com/oil-shortage-2…

Turbocharged engines put more stress on motor oil than almost any other passenger vehicle application. Higher temperatures, tighter tolerances, direct injection and turbocharger bearings all depend on the right oil to survive. If your vehicle calls for 5W-30, the viscosity is only part of the story. Specifications like API SN Plus and API SP were developed to help protect modern turbocharged engines from issues such as LSPI (Low-Speed Pre-Ignition), deposits and oil breakdown. We break down: • Why turbo engines are harder on oil • What LSPI is and why it matters • API SN vs SN Plus vs SP • Synthetic vs conventional oil • OEM approvals and specifications Read the full article: rfr.bz/t0e9368 #Turbocharged #TurboEngine #MotorOil #SyntheticOil #5W30 #EngineOil #AutomotiveMaintenance #CarCare #DIYMechanic #EcoBoost #SubaruWRX #BMWTurbo #PerformanceCars #Lubrication #EngineProtection

Most drivers focus on the brand on the bottle. Smart drivers focus on the specification. API, ILSAC, dexos and ACEA standards determine how an oil performs under heat, wear, deposits, fuel economy testing and modern engine demands. Learn what these specifications actually mean, how they differ, and why "approved" vs. "meets requirements" matters when choosing motor oil. #MotorOil #API #ILSAC #Dexos #ACEA #SyntheticOil #EngineProtection #CarMaintenance #Lubrication rfr.bz/t35a808

Most truck owners know engine oil matters. Far fewer pay attention to transmission oil. If your truck runs an Eaton Fuller 10-speed, 13-speed or 18-speed, using the correct SAE 50 fluid can improve protection, shifting performance and drain intervals. Using the wrong fluid can do the opposite. Our latest page covers: • Eaton PS-164 Rev 7 requirements • SAE 50 transmission oil specifications • 500,000-mile line-haul intervals • Signs your transmission oil needs attention • Recommended fluids for Class 8 trucks Read it here: rfr.bz/t6d8130 #SemiTruck #Trucking #OwnerOperator #EatonFuller #TransmissionOil #DieselTruck #FleetMaintenance #Class8Truck

The Detroit DD13 is one of the most popular engines on the road, but many owners never realize how much oil choice affects wear, soot control and drain intervals. We break down: • DD13 oil capacity • Recommended viscosity grades • API CK-4 requirements • Oil change intervals • Common DD13 maintenance questions If you run a Freightliner, Western Star or any truck powered by a Detroit DD13, this page is worth bookmarking. #DetroitDiesel #DD13 #OwnerOperator #SemiTruck #DieselEngine #FleetMaintenance #TruckingLife rfr.bz/tfe4f1f

Twin Cam Harley Riders Know… There’s just something about a Twin Cam. Raw torque. Mechanical feel. Built to ride, wrench on, and make your own. From the TC88 to the TC110, the Twin Cam era still hits different. 🔥 Which Twin Cam are you riding? #HarleyDavidson #TwinCam #Dyna #ClubStyle #FXDX #HarleyDyna #VTwin #HarleyLife #TwinCam88 #TwinCam103 #BuiltNotBought #MotorcycleLife rfr.bz/t82ef9a

Synthetic vs Conventional 5W-30: Which Should You Choose? The answer isn't "synthetic is always better" — it's "what does YOUR vehicle need?" Real benefits, cost-per-mile analysis, and the approval label trap that oil companies won't tell you about. Read the full breakdown: rfr.bz/td1706a #motoroil #5W30 #vehiclemaintenance #synthethicoil #conventionaloil #engineprotection

Not all 5W-30 diesel oil is the same. A Cummins, PowerStroke, Duramax, or smaller diesel may require completely different specs — and buying based on viscosity alone can be an expensive mistake. We broke down: ✅ Max-Duty vs DP530 ✅ CK-4, dexos D & diesel specs ✅ Heavy-duty pickups vs smaller diesels ✅ How to choose the RIGHT 5W-30 diesel oil Read it here: rfr.bz/ta1e824 #DieselTruck #Cummins #PowerStroke #Duramax #AMSOIL #DieselLife #SyntheticOil #TruckMaintenance

New project is live: 5W-30.com If you’ve ever wondered what 5W-30 actually means, what vehicles use it, or whether all 5W-30 oils are really the same — this site is for you. Built as a straight-up resource covering: • What 5W-30 means • Specs like API, Dexos, ILSAC & ACEA • Synthetic vs conventional • Turbo engines, towing & high mileage • Common oil mistakes Still early, still growing — but the foundation is up. rfr.bz/tf020cb

Old 2-stroke oil usually isn't the problem — old mixed gas is. Here's how long 2-stroke oil lasts, when premix goes bad, and when to throw it away before it wrecks your carburetor. rfr.bz/t961165

Think all 5W-30 oil is the same? It isn’t. A commuter car, turbo SUV, towing pickup, and high-mileage truck may all say “5W-30” — but they don’t always need the same oil. ✔ Daily drivers ✔ Turbo engines ✔ Towing & hauling ✔ High-mileage vehicles ✔ Cars, SUVs & light trucks The right oil depends on how you actually drive. Buy from the mechanic. Not the salesman. rfr.bz/taf2357 #vyscocity #AMSOIL #SyntheticOil #MotorOil #TruckLife #CarMaintenance #MechanicAdvice #5W30 rfr.bz/t4c70ee

Think all 5W-30 oil is the same? Think again. A pickup truck, diesel semi, BMW, lawn mower, generator, or tractor may all use 5W-30 — but they don’t need the same oil. 5W-30 is NOT just 5W-30. Different approvals. Different chemistry. Different protection. Before you buy oil, make sure you’re buying the right 5W-30 for your engine or equipment. Buy from the mechanic. Not the salesman. 🔧 New guide coming soon at Vyscocity.com #AMSOIL #Vyscocity #MotorOil #SyntheticOil #TruckLife #DieselTruck #Mechanic #SmallEngine #FleetMaintenance #BMW #Towing rfr.bz/t0400c9

ECF-3 is not optional. Your Caterpillar C15, C13, or 3406E needs oil that meets both CAT's proprietary spec and API CK-4—or you risk accelerated bearing wear and warranty trouble. Here's the full rundown on drain intervals, oil capacity, and which synthetics actually carry CAT approval. Buy from the Mechanic. Not the Salesman. rfr.bz/t3592cd

Allison transmissions work hard — your fluid should too. Not all ATF meets Allison specs. Learn the difference between TES-295, TES-668, service intervals, and what actually protects heavy-duty transmissions. rfr.bz/t6017b6 rfr.bz/t6d2ba8

Searching for "AMS Oil"? You're looking for AMSOIL. Not an acronym, not a typo—it's the brand trusted by fleet managers and mechanics since 1972. Premium synthetic protection, extended drains, proven performance. rfr.bz/t329e56

Ever wonder what Harley-Davidson model letters actually mean? FLHTK. FLTRX. FXST. XL1200. Those letters actually tell a story. Example: FLHRCI • F = Overhead-valve Big Twin platform • L = Wide front end / touring style forks • HR = Road King family • C = Classic • I = Fuel Injection Or: FXST • F = Big Twin platform • X = Narrow front end / sport forks • ST = Softail frame We put together a full Harley-Davidson abbreviations page covering Touring, Softail, Dyna, Sportster, V-Rod, Police, CVO, fuel injection suffixes, and model-code meanings. 🔗 rfr.bz/t55371b rfr.bz/t546c9b

Stop guessing on pricing. Calculate your exact AMSOIL volume discount, co-op credits, and savings in seconds. Whether you're an installer, dealer, or fleet operator — your tier is waiting. #AMSOIL #Vyscocity #FleetSavings #BulkPricing #WholesaleDeals #ShopOwner #FleetOperator #AMSOILDEALER vyscocity.com/tools/bulk-pri…

Milwaukee-Eight has three holes. Engine, primary, transmission. Some guys run separate fluids, some run AMSOIL 20w-50 for all three. We covered the specs so you know what actually goes where.