Prepping Your LBZ Duramax for the Road with AMSOIL Diesel Protection

Getting the LBZ Set for Another Season of Cruising

Routine diesel maintenance can be equal parts satisfying and aggravating. An oil change may seem like a simple task, but the runaround—from miscommunicating with counter staff to paying dealer prices—can turn routine into a headache. And besides all that, it’s hard to know if the product you’re using is actually doing a good job protecting your engine. It doesn’t need to be that way, though, and AMSOIL is here to help.

For decades, AMSOIL has led the synthetic-lube revolution. In 1972, it became the first company to earn an API certification for synthetic motor oil, solidifying its reputation as “The First in Synthetics.” Today, AMSOIL offers a comprehensive line of diesel-specific formulations engineered for heavy-duty use and long-drain intervals. Here are the key reasons diesel owners are reaching for AMSOIL on oil change day.

Routine oil and filter changes get easier with AMSOIL’s diesel offerings. Its Heavy-Duty Synthetic Diesel Oil delivers 4 more wear protection, shrugs off heat and oxidation, and cuts oil consumption by up to 66% compared to API CK-4 standards, meaning fewer top-ups and less waste. AMSOIL’s Signature Series 5W‑30 Max‑Duty Diesel oil steps it up to 6 more wear protection, better turbo cleanliness, and confidence in extreme temperatures.

AMSOIL’s synthetic base stocks are molecularly uniform, reducing friction, boosting fuel economy, and cutting emissions, all while guarding against viscosity loss and high-temp breakdown. For diesel trucks that serve as workhorses, these benefits translate directly into longer equipment life and fewer maintenance stops, which is especially important for owners logging heavy-duty miles or towing big loads.

It doesn’t stop there, though. AMSOIL’s nanofiber filters engineered for diesel engines trap microscopic particles more effectively than common cellulose filters found in your average parts store. Its diesel oils also maintain a high Total Base Number (TBN) to neutralize acids and preserve engine internals, sludge control, and seal longevity.

Running AMSOIL in a truck is a commitment to performance. Whether it’s the 15W-40 offering for everyday tow rigs or Signature Series fluids for daily driver durability, AMSOIL’s products are designed not just to meet but to exceed OEM specs.

Each application boasts:

• Extended drain intervals with oil analysis
• Consistent viscosity across heat cycles
• Anti-wear additives that protect high-load diesel components like cylinder liners and turbos

For diesels in the aftermarket world, especially those exposed to high strain and tuners chasing every advantage, AMSOIL’s performance edge can be the difference between a trip and no trip.

Take an oil change routine, for example. After draining old fluid, swapping filters, and topping off, most folks head home hoping they chose right. With AMSOIL at the sump, you’re not hoping—you’re knowing. Cleaner turbos, less varnish, fewer breakdowns—and after weeks behind the wheel, you’ve still got clean oil and long, maintenance-free miles left to go.

That’s why diesel shops recommend AMSOIL and why harvest-season farmers and fleet owners swear by it. That kind of reliability is hard to quantify but easy to appreciate when fronting fuel tanks and engines survive just fine.

AMSOIL Oil: Key Specs & Benefits

• Heavy-Duty 15W-40: 4 wear protection, up to 66% less oil consumption, excels in heat and cold
• Signature Series 5W-30: 6 wear protection, turbo cleanliness, boosts fuel efficiency
• Nanofiber Filters: HDR filtration, longer life, fewer replacements

Every part of an oil change—drain, filter swap, refill, and fire-up—is faster when you’re not heading back to top-offs or dealing with oil breakdown. AMSOIL even backs its products against emissions system issues and compatibility with OEM warranties.

Oil change days aren’t glamorous, but with AMSOIL in the mix, they’re as efficient as a tuned diesel engine. Longer drain intervals, better wear protection, cleaner turbos, and fewer worries—exactly what a diesel owner wants. When service day rolls around again, you can be confident your engine is ready to go.