Best Pennzoil Oils in 2026

Product 1: Country of Origin: United States

Product 2: Full synthetic 5W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, oil breakdown, and improves low-temperature flow

Product 2: Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from pickup trucks to tractors to semi rigs

Product 2: Enhanced fuel economy capability of 1.5 percent without compromising engine protection or durability (compared to 15W-40 oils)

Product 2: Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants (compared to previous formulation)

Protects your truck engine in extreme temperatures and conditions

Helps prevent sludge and other damaging deposits

Fuel economy savings up to 2 percent compared to a conventional 15W-40, helping you stretch your budget and improve your bottom line

Provides better cold cranking properties and better low temperature pumpability than conventional 15W-40

Improved oxidation performance for increased resistance to oil breakdown under high temperatures compared to the previous formulation

Case of three 1-gallon bottles with ergonomic design for easy handling and pouring

Low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low emission vehicles

Helps control engine deposits for reliability at extended oil drain intervals (always follow the OEM recommended oil drain interval)

Controls engine wear 37 percent better than the maximum wear requirements in API CK-4 engine wear tests

Improved oxidation performance for increased resistance to oil breakdown under high temperatures compared to the previous formulation

Case of three 1-gallon bottles with ergonomic design for easy handling and pouring

Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants (compared to previous formulation)

Increased shear stability for better viscosity control and optimal engine oil pressure

Better cold-cranking properties and low-temperature pumpability for reaching critical engine parts faster

Single 1-gallon bottle with ergonomic design for easy handling and pouring

Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles

Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants (compared to previous formulation)

Increased shear stability for better viscosity control and optimal engine oil pressure

Better cold-cranking properties and low-temperature pumpability for reaching critical engine parts faster

Case of three 1-gallon bottles with ergonomic design for easy handling and pouring

Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles

Fuel economy savings up to 2 percent compared to a conventional 15W-40, helping you stretch your budget and improve your bottom line

Provides better cold cranking properties and better low temperature pumpability than conventional 15W-40

Improved oxidation performance for increased resistance to oil breakdown under high temperatures compared to the previous formulation

Single 2.5-gallon bottle

Low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low emission vehicles

Helps control engine deposits for reliability at extended oil drain intervals (always follow the OEM recommended oil drain interval)

Controls engine wear 37 percent better than the maximum wear requirements in API CK-4 engine wear tests

Improved oxidation performance for increased resistance to oil breakdown under high temperatures compared to the previous formulation

Single 1-gallon bottle with ergonomic design for easy handling and pouring

Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants (compared to previous formulation)

Increased shear stability for better viscosity control and optimal engine oil pressure

Better cold-cranking properties and low-temperature pumpability for reaching critical engine parts faster

Case of three 1-gallon bottles with ergonomic design for easy handling and pouring

Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles

Increased shear stability for better viscosity control and optimal engine oil pressure

Wear control helps keep moving metal engine surfaces apart for a longer life

Meets or exceeds API CK-4 requirements and is designed to provide extra performance in both older and new engines

55-gallon drum

Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from diesel pickup trucks to tractors to tractor trailers

Increased shear stability for better viscosity control and optimal engine oil pressure

Wear control helps keep moving metal engine surfaces apart for a longer life

Meets or exceeds API CK-4 requirements and is designed to provide extra performance in both older and new engines

Case of three 1-gallon bottles with ergonomic design for easy handling and pouring

Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from diesel pickup trucks to tractors to tractor trailers

Increased shear stability for better viscosity control and optimal engine oil pressure

Wear control helps keep moving metal engine surfaces apart for a longer life

Meets or exceeds API CK-4 requirements and is designed to provide extra performance in both older and new engines

5-gallon pail

Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from diesel pickup trucks to tractors to tractor trailers

Increased shear stability for better viscosity control and optimal engine oil pressure

Wear control helps keep moving metal engine surfaces apart for a longer life

Meets or exceeds API CK-4 requirements and is designed to provide extra performance in both older and new engines

Single 2.5-gallon bottle with ergonomic design for easy handling and pouring

Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from diesel pickup trucks to tractors to tractor trailers

Emissions system compatibility - advanced low-ash formulation helps control blocking of or poisoning of exhaust after-treatment devices, helping maintain vehicle emission compliance and engine fuel efficiency

Improved heat resistance - resists breakdown by heat to provide continuous protection throughout the service interval

Shell Rotella T6 full synthetic oil features an advanced multi-functional, low-ash additive technology in a synthetic base oil designed to provide highly responsive protection that continuously adapts to your driving conditions

Rotella T6 is formulated with reduced levels of ash, phosphorous and sulfur to help maintain the efficiency of the latest vehicle-emissions technologies

Shell Rotella T6 5W-40 provides excellent low-temperature flow, even at -30 degrees Fahrenheit

Shell Rotella T6 full synthetic oil features an advanced multi-functional, low-ash additive technology in a synthetic base oil designed to provide highly responsive protection that continuously adapts to your driving conditions

Rotella T6 is formulated with reduced levels of ash, phosphorous and sulfur to help maintain the efficiency of the latest vehicle-emissions technologies

Shell Rotella T6 5W-40 provides excellent low-temperature flow, even at -30 degrees Fahrenheit

Shell Rotella T6 5W-40 provides unsurpassed protection against shear-stability degradation, compared to the leading competitive API CJ-4 5W-40 products

Excellent rust and corrosion protection for critical engine parts

Optimized dispersant content to help prevent engine sludge and varnish deposits

Rotella Heavy Duty, engine oil features multi-functional, low ash additive technology in a synthetic base oil designed to provide highly responsive protection that continuously adapts to your driving conditions.

Enhanced protection against oxidation for more efficient operation

Increased shear stability for better viscosity control and optimal oil pressure

Demonstrated performance reserve throughout the oil drain interval for protection and lubrication

Exceptional low-temperature properties; flow properties helps speed cold starts

Excellent rust and corrosion protection for critical engine parts

Optimized dispersant content to help prevent engine sludge and varnish deposits

Conventional monograde motor oil for specialty vehicles such as tractors and buses

Low ash content, minimizing formation of deposits and helping to keep intake ports clean

Outstanding oxidation resistance to help maximize service life

Excellent rust and corrosion protection for critical engine parts

Optimized dispersant content to help prevent engine sludge and varnish deposits

Rotella Heavy Duty, engine oil features multi-functional, low ash additive technology in a synthetic base oil designed to provide highly responsive protection that continuously adapts to your driving conditions.

Rotella T5 advanced formulation delivers good engine cleanliness and protection against piston deposits ensuring engine and component reliability at extended oil drain intervals

Shell Rotella T5 meets the requirements of the major US and European engine manufacturers for low emission applications

Compatible with vehicle type: Truck

Outstanding oxidation resistance to help maximize service life

Excellent rust and corrosion protection for critical engine parts

Excellent low temperature fluidity provides good response at low temperatures

Shell Rotella Heavy Duty Tractor Fluid provides excellent service in virtually all makes of construction and farm tractors

Outstanding oxidation resistance that maximizes service life

Excellent rust and corrosion protection of critical engine parts

Outstanding oxidation resistance to help maximize service life

Excellent rust and corrosion protection for critical engine parts