Gasoline Motor Oils



Gratta Oil carries the entire line of Amsoil’s fully synthetic motor oils because they offer the ultimate in wear protection and extended use of service. There are 3 tiers of Amsoil motor lubricants in addition Z-Rod and Premium Protection motor oils with zinc added for classic or older cars, or any car such as those with flat tappets that need the added protection of a zinc enhanced formula.

The Amsoil synthetic motor oils, in order of performance, are Amsoil OE, Amsoil XL, and Amsoil Signature Series. Amsoil XL provides a 10,000 mile or 6 month oil change interval, with Amsoil Signature Series being Amsoil’s flagship motor oil, offering the most extended oil change interval available at 25,000 miles or 1 year, whichever occurs first.

Amsoil OE, Original Equipment synthetic motor oil, available in viscosities of 0W-20, 5W-20, 5W-30, and 10-30 is the entry level synthetic at rock bottom pricing, while sacrificing no quality whatsoever in the protection of your gasoline powered vehicle. It is a full synthetic and is for the customer who does not prefer an extended oil change interval, choosing instead to change oil in strict accordance with manufacturer’s recommendations. If you change your oil according to the the manual’s instructions and cannot be convinced that oils providing longer oil change intervals are more convenient and more economical, then Amsoil OE is the oil for you.

Amsoil XL, Extended Life synthetic motor oil, available in 0W-20, 5W-20, 5W-30, 10W-30, and 10W-40 viscosities, provides an extended drain availability of 10,000 miles or 6 months, whichever occurs first. It is an ideal lubricant for those desiring the added convenience of an extended drain interval of up to 10,000 or 6 months, whether it be for a family vehicle or an entire commercial fleet. Amsoil XL is a mid-range priced motor oil.

Amsoil Signature Series, synthetic motor oil is Amsoil’s top tier product, available in viscosities of 0W-30., 0W-20, 5W-20, 5W-30, and 10W-30. This oil provides the ultimate in wear protection and extended drain intervals. When used with an Amsoil Absolute Efficiency oil and air filter, this combination cannot be improved upon in providing your vehicle the finest in lubrication and interior cleanliness. Moreover, whether the climate is very hot or very cold, Amsoil Signature Series resists thermal breakdown better than other synthetics and continues to flow in the coldest of climates. Signature Series is suitable for all kinds of gasoline fueled vehicles.


Enter the category for this item: 25000 Miles
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SAE 0W-30 Signature Series 100% Synthetic Motor Oil



AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines.

Enter the category for this item: 25000 Miles
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Signature Series 100% Synthetic 0W-20 Motor Oil (ASM)



AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines.

Enter the category for this item: 25000 Miles
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SAE 5W-30 Signature Series 100% Synthetic Motor Oil



AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines.

Enter the category for this item: 25000 Miles
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SAE 10W-30 Signature Series 100% Synthetic Motor Oil



AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines.

Enter the category for this item: 10000 Miles
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SAE 5W-30 XL Extended Life Synthetic Motor Oil



Formulated for up to 10,000-miles/six month intervals, or longer when recommended in owners’ manuals or indicated by oil monitoring systems. Provides better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils.

Enter the category for this item: 10000 Miles
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SAE 10W-30 XL Extended Life Synthetic Motor Oil



Formulated for up to 10,000-miles/six month intervals, or longer when recommended in owners’ manuals or indicated by oil monitoring systems. Provides better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils.

Enter the category for this item: 10000 Miles
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SAE 10W-40 XL Extended Life Synthetic Motor Oil



Formulated for up to 10,000-miles/six month intervals, or longer when recommended in owners’ manuals or indicated by oil monitoring systems. Provides better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils.

Enter the category for this item: 10000 Miles
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SAE 5W-20 XL Synthetic Motor Oil



Formulated for up to 10,000-miles/six month intervals, or longer when recommended in owners’ manuals or indicated by oil monitoring systems. Provides better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils.

Enter the category for this item: Original Equipment
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SAE 5W-20 OE Synthetic Motor Oil



AMSOIL OE Synthetic Motor Oil is specially formulated for the longer oil change intervals recommended by vehicle manufacturers today. Its advanced synthetic technology resists chemical breakdown for maximum wear protection (and peace of mind) well beyond the traditional 3,000-mile oil change interval.

Enter the category for this item: Original Equipment
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SAE 5W-30 OE Synthetic Motor Oil



AMSOIL OE Synthetic Motor Oil is specially formulated for the longer oil change intervals recommended by vehicle manufacturers today. Its advanced synthetic technology resists chemical breakdown for maximum wear protection (and peace of mind) well beyond the traditional 3,000-mile oil change interval.

Enter the category for this item: Original Equipment
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SAE 10W-30 OE Synthetic Motor Oil



AMSOIL OE Synthetic Motor Oil is specially formulated for the longer oil change intervals recommended by vehicle manufacturers today. Its advanced synthetic technology resists chemical breakdown for maximum wear protection (and peace of mind) well beyond the traditional 3,000-mile oil change interval.

Enter the category for this item: European Cars
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European Car Formula 5W-30 Synthetic Motor Oil



AMSOIL European Car Formula 5W-30 Synthetic Motor Oil provides exceptional performance and protection for high-performance European vehicles made by Volkswagen, Audi, Mercedes-Benz, BMW, Porsche and more. Its low-viscosity formulation maximizes fuel efficiency without compromising engine protection, while meeting strict European performance requirements for gasoline and direct-injection diesel engines designed for low-viscosity oils.

Enter the category for this item: European Cars
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European Car Formula 5W-40 Synthetic Motor Oil



Formulated for the needs of European gasoline cars and light trucks. Blended with a broad 5W-40 viscosity rating. Allows for the maximum extended drain intervals recommended while providing superior protection and performance.

Enter the category for this item: Premium Protection
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SAE 10W-40 Synthetic Premium Protection Motor Oil



For use in both gasoline and diesel engines. Offers multi-functionality and wear protection. Ideal for applications where the extra protection of a higher-viscosity oil is desired. Excellent for motor homes and older vehicles, as well as many types of modern equipment and compatible with some motorcycles.

Enter the category for this item: Premium Protection
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SAE 20W-50 Synthetic Premium Protection Motor Oil



For use in both diesel and gasoline engines. Ideal for applications where the extra protection of a higher-viscosity oil is desired. The higher viscosity may help reduce motor oil consumption in equipment experiencing higher than normal oil usage rates while running lower viscosity lubricants.

Enter the category for this item: Classic,High Performance
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Z-ROD 10W-30 Synthetic Motor Oil


AMSOIL Z-ROD™ Synthetic Motor Oil is specially engineered for classic and high-performance vehicles. A high-zinc formulation to prevent wear on flat-tappet camshafts and other critical engine components, along with a proprietary blend of rust and corrosion inhibitors for added protection during long-term storage.


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Z-ROD 20W-50 Synthetic Motor Oil



AMSOIL Z-ROD™ Synthetic Motor Oil is specially engineered for classic and high-performance vehicles. A high-zinc formulation to prevent wear on flat-tappet camshafts and other critical engine components, along with a proprietary blend of rust and corrosion inhibitors for added protection during long-term storage.

Enter the category for this item: Natural Gas
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Synthetic Stationary Natural Gas Engine Oil



AMSOIL Synthetic Stationary Natural Gas Engine Oil (ANGS) delivers continuous protection in stationary natural gas engines calling for an SAE 40, low-ash lubricant. Its shear-stable formula qualifi es it as a multi-grade 20W-40 so it can be used over a broad ambient temperature range, eliminating the need for seasonal oil changes.

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Synthetic Vehicular Natural Gas Engine Oil SAE 15W-40



AMSOIL Synthetic Vehicular Natural Gas Engine Oil delivers superior protection and performance in vehicular and mobile natural gas engines calling for an API CF 15W-40 low-ash lubricant.

Enter the category for this item: Natural Gas