Your diesel truck is a serious investment – don’t skimp on protection. AMSOIL manufactures the best diesel oils on the market, providing the ultimate protection for your hard-working diesel engine, preserving the horsepower you crave and keeping you on the road.
We engineer our synthetic diesel oils with the same passion and pride you put into your turbodiesel, providing protection you can depend on in the most severe operating conditions.
Do you want extra engine protection?
Excessive wear to diesel cylinder liners and rings leads to increased oil consumption and loss of compression, reducing horsepower and fuel economy.
AMSOIL delivers rock-solid wear protection you can rely on.
Do you tow or haul?
Operating at up to 150,000 rpm in temperatures that exceed 1,000°F (538ºC), a turbocharger on a stock engine can dish out a lot of punishment to your oil.
If it’s not formulated to take the beating, the oil can break down, creating deposits and wear.
For some, stock engines don’t provide enough power, but dropping a tune on your engine puts even more stress on both your turbo and your oil.
Here again, AMSOIL delivers.
Do you store your vehicles and equipment?
Intermittent use, prolonged storage, humidity and short drives can lead to the development of rust and corrosion, causing major damage to diesel engines.
Do you drive in hot temperatures?
AMSOIL synthetic diesel oils resist thermal (heat) breakdown better than conventional and competing synthetic diesel oils, effectively retaining their protective viscosities for added engine protection in extreme temperature conditions.
Do you drive in cold temperatures?
Unlike conventional oils, AMSOIL synthetic diesel oils contain no wax, staying fluid in sub-zero temperatures for easier starting, improved oil flow and reduced wear.
Signature Series 0W-40 has a broad viscosity range that offers 4X better cold-cranking ability than a 15W-40.
Find out how to keep diesel fuel from gelling in the cold.
Do you own a high-mileage vehicle?
AMSOIL synthetic diesel oils provide low rates of volatility (burn-off), reducing oil consumption during operation and passing less oil vapor into the combustion chamber.
Reduced oil consumption is especially important for the performance of your exhaust system.
This article is part of our Diesel Oil and Maintenance guide. See every article in the guide.
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AMSOIL Staff articles draw on the combined expertise of AMSOIL engineers, chemists, Technical Services specialists, technical writers and product marketers. Content is developed from AMSOIL data sheets, laboratory and field testing, oil-analysis results and more than 50 years of synthetic-lubricant development. Topics span automotive, diesel, powersports, marine, small-engine, agricultural and industrial equipment, covering lubrication fundamentals, maintenance practices, product selection and real-world customer experience.
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