AMSOIL Synthetics for Classic Cars - Select Synthetics - AMSOIL Authorized Dealer
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Products > AMSOIL Products > Shop by Category
Classic Cars
AMSOIL Classic Car Lubricants are specially designed to provide maximum horsepower. With unique, high-end formulations and proprietary rust and corrosion protection, AMSOIL Lubricants provide the precision performance your Classic Car or Hot Rod deserves.
AMSOIL Z-ROD® Synthetic Motor Oil
AMSOIL Z-ROD™ Synthetic Motor Oil is specially engineered for classic high-performance vehicles and Hot Rods. It features a high-zinc formulation to prevent wear on flat-tappet camshafts, lifters, rockers and other critical engine components, along with a proprietary blend of rust and corrosion inhibitors for added protection during long-term storage.
AMSOIL Z-ROD™ Synthetic Motor Oil is designed to perform on the street and protect during storage.
There's a reason they’re called Hot Rods. These legendary cars had horsepower to spare, and styling to accompany it. It's only right to pair them with superior premium lubricants designed to help you put all that power on the pavement.
Nobody knows the hours you've poured into your Hot Rod, but everybody can see the results of your passion. All that time and energy put into one vehicle deserves nothing less than the premium protection and performance provided by AMSOIL Premium Synthetic Hot Rod Lubricants.
AMSOIL Premium Protection Synthetic Motor Oil
AMSOIL Premium Protection Synthetic Motor Oil is formulated to provide superior protection and performance in a wide variety of demanding applications.
Its unique combination of synthetic base stocks and a superior additive package results in a formulation that exceeds the requirements of most gasoline or diesel applications and can be used in both engine types.
AMSOIL Premium Protection Oil is guaranteed for up to 25,000 miles or 12 months drain intervals in diesel engines or 15,000 miles or 12 months drain intervals in gasoline engines.
It is ideal for applications where the extra protection of a higher-viscosity oil is desired and is excellent for Classic Cars and Vintage Vehicles.
It also contains no friction modifiers, which makes it ideal for motorcycles, and other wet-clutch applications.
AMSOIL Premium Protection, with it's higher levels of ZDDP (Zinc Dialkyl Dithiophosphates), provides the extra anti-wear protection required by older engines with flat-tappet cams and high-tension valve springs.
AMSOIL Premium Protection Motor Oil is ideal for high-mileage vehicles and high-stress vehicles subject to hot temperatures, heavy hauling, trailer pulling, plowing, or off-road use. The higher viscosity may also help reduce oil consumption if experiencing higher than normal oil usage rates.
What Is ZDDP?
ZDDP (Zinc Dialkyl Dithiophosphates) is the most commonly used anti-wear additive in motor oil. It contains both zinc and phosphorus components that work together to provide anti-wear protection and minimize lubricant breakdown. ZDDP also acts as a corrosion inhibitor and exhibits mild extreme-pressure protection.
Under heat and pressure, ZDDP forms a microscopic glassy, phosphate layer that fills in the peaks and valleys of surface roughness, improves lubrication and forms a sacrificial wear coating. The purpose of that coating is to create a barrier, so that it is the ZDDP coating that wears off in use and not the parent metal on the expensive components in your engine.
To comply with the Environmental Protection Agency’s (EPA) tightened emissions legislation in the US, car manufacturers from around the world were forced to use technology to bring their cars in line with the law. As a result, catalytic converters were introduced in 1975. The problem is, catalytic converters happen to be very sensitive to the levels of ZDDP used in todays motor oils.
Now the problem is, excessive levels of ZDDP happen to be harmful/poisonous to catalytic converters. Generally, high levels of ZDDP result in volatile phosphorus being transferred from the combustion chamber to the catalytic converter. Phosphorus can blind over the catalytic reaction sites in the converter, making it less efficient in turning carbon monoxide (CO) into carbon dioxide (CO2).
The EPA mandates that catalytic converters operate as designed for more than 100,000 miles. As a result, phosphorus is limited for newer motor oil specs. The API and ILSAC set phosphorus limits to 0.10 percent weight (1000 ppm) in 1996, which was further reduced to 0.08 percent (800 ppm) in 2004, where it remains today.
However, as mentioned above, AMSOIL High Zinc Motor Oils, with their higher levels of ZDDP, provides the extra anti-wear protection required by Vintage Vehicle engines with flat-tappet cams and high-tension valve springs.
AMSOIL Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil
AMSOIL Series 3000 5W-30 Synthetic HD Diesel Oil delivers extraordinary lubrication in both diesel and gasoline engines found in Classic Car and Vintage Vehicle engines.
Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. Also engineered for all gasoline engines recommending API SL specifications, including turbo-charged vehicles, providing superior wear protection and fuel efficiency.
By combining synthetic base oils with AMSOIL premium additives, Series 3000 oil exceeds the higher performance demands of modern engines. It withstands the stress of higher heat, higher acid levels and excessive soot-loading.
Even under high temperatures and pressures, Series 3000 Diesel Oil's superior film strength and anti-wear additives help prevent metal-to-metal contact, reducing ring wear, cylinder bore polishing, oil consumption and valvetrain wear for improved engine life and lower maintenance costs.
Heavily fortified with detergent/dispersant additives, it is naturally resistant to soot. It is designed to keep soot particles suspended independently and prevent them from attaching together to form larger, wear-causing particles. Viscosity increase is minimized and soot-related wear is controlled.
AMSOIL Series 3000 5W-30 Synthetic HD Diesel Oil consistently outperforms conventional and synthetic diesel oils for long-lasting performance and protection. It can extend drain intervals far beyond those recommended for conventional oils.
Its unique synthetic formulation and long-drain additive system deliver maximum engine protection, cleanliness and performance over extended drain intervals, reducing vehicle maintenance and waste oil disposal costs.
AMSOIL Z-ROD™ Synthetic Motor Oil and AMSOIL Premium Protection Synthetic Motor Oil, with their advanced additive packages, deliver the peace of mind you need to put your passion on the road with complete confidence that it’s protected with superior premium products from AMSOIL.
Find the right Filter for your classic car: Vintage Vehicle Filter Lookup Guide
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