GMC Savana 2500 Oil and Lubricants

Quaker State Full Synthetic Motor Oil SAE 5W-30 contains the most powerful formulation in the Quaker State portfolio. This product offers superior resistance to thermal and viscosity breakdown compared to Quaker State Synthetic Blend Motor Oil. As the engine temperature increases, the heat activated shear stable viscosity modifiers work to maintain oil film thickness that is necessary to prevent engine parts from metal on metal contact which helps extend engine life. This motor oil maintains its viscosity from start to finish, which means it stays in the grade specified by the car manufacturer throughout the recommended oil drain interval. The product also contains special detergents and dispersant additives that are designed to neutralize the harmful acids generated by the combustion process. This helps prevent the formation of sludge and deposits from forming on crucial engine parts. These properties of Quaker State Ultimate Durability full synthetic motor oil make it reliable and suitable for use in high performance vehicles such as sport cars, SUVs, trucks and minivans. It is compatible with biofuels, ranging from E10 to E85 and suitable for hybrid vehicles.

Product Features:

• Quaker State Ultimate Durability is our most powerful formulation, providing extreme engine performance and protection against deposits, which allows your engine to operate at maximum horsepower
• No leading synthetic motor oil provides better protection from friction-related wear when compared to industry standard Sequence IVA engine test results
• Helps protect against the effects of low-speed pre-ignition (LSPI) in modern turbocharged engines.
• Provides excellent protection against the formation of sludge and other harmful deposits when compared to Quaker State Synthetic Blend Motor Oil
• Superior lubrication flow and pumpability at high and low temperatures when compared to Quaker State Synthetic Blend Motor Oil

3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.

Product Features:

• Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive

Whatever you are driving, wherever you are going, you can trust your car to get you there when you use Mobil 1 advanced full-synthetic motor oil 5W-30. Mobil 1 advanced synthetic motor oil utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles of all ages. Specialty components in synthetic oil extend engine life by reducing the friction that causes deposits and sludge buildup , keeping critical engine parts clean and protected for up to 10,000 miles between oil changes. (1) This technologically advanced motor oil formulation provides 10X (2) better internal engine heat protection than industry standards (up to 500 degrees Fahrenheit), as well as exceptional low-temperature protection (to -30 degrees Fahrenheit) , bringing quick cold-weather starting and ultra-fast protection to your engine. Mobil 1 advanced full-synthetic motor oil meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy. Mobil 1 advanced full-synthetic motor oil 5W-30 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern cars, SUVs, light vans, and light trucks , including those with high-performance, turbocharged, supercharged, multi-valve, or fuel-injected engines. Mobil 1 is Americas#1 selling synthetic motor oil brand at retail, (3) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR. ( (1) Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2) Based on Seq IIIH vs industry limits. (3) Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending July 1, 2023)

Product Features:

• Mobil 1 advanced full-synthetic motor oil 5W-30 utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
• Helps protect critical engine parts for up to 10,000 miles between oil changes,(1) controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
• Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
• Helps extend engine life by working to prevent damaging deposits and sludge buildup
• Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
• Manufacturer Part Number: 125222

Formulated to meet the specific requirements of Toyota, Lexus, and scion vehicles equipped with conventional (non-CVT) transmissions that require the use of ATF T-IV. Recommended for service-fill in all Toyota, Lexus, and Scion automatic transmissions where ATF T-IV is specified. Fuel economy demands and more sophisticated electronic controls have made automatic transmissions not only more complex, but also unique to each vehicle manufacturer. Long gone are the days of having just a couple choices of automatic transmission fluid type. IDEMITSU is the factory fill Automatic Transmission Fluid (ATF) supplier to most Asian imports. IDEMITSU application-specific ATF products match the exact friction materials and performance requirements of each different vehicle model for which they are made.

Product Features:

• Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
• Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
• Provides superior cleanliness, maintaining the transmission free of sludge and varnish deposits
• Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
• Advanced anti-wear technology provides maximum protection to gears and bearings
• Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking

Pennzoil Platinum full synthetic SAE 5W-30 motor oil is uniquely engineered from our revolutionary PurePlus gas-to-liquid technology, which is a patented process that converts pure natural gas into a high quality, full synthetic base oil. Our high quality base oil is 99.5% pure, contains fewer impurities than base oils made from crude oil, and when combined with our advanced additive technology creates one of the best formulations in our Pennzoil portfolio. Pennzoil Platinum full synthetic SAE 5W-30 motor oil is licensed and meets the vehicle warranty requirements of GM’s dexos 1 Gen 2 specifications that are set forth to meet today’s modern engine technologies. This means that our Pennzoil Platinum full synthetic products meet the stringent requirements of leading car manufacturers. Why does this matter? Modern engine technologies have evolved over the years and today’s engine parts have reached an unprecedented level of fine manufacturing tolerances which require a high-quality engine oil to help provide complete engine protection. This includes protection against abnormal combustion phenomenon like low-speed pre-ignition observed in modern turbocharged gasoline direct injection (TGDI) engines.

Product Features:

• Engineered to provide a high-quality base oil using our revolutionary PurePlus gas-to-liquid technology in combination with a high performance additive system
• Helps protect against the effects of low speed pre-ignition (LSPI) in modern turbocharged engines
• Provides better fuel economy which helps you drive an extra 550 miles per year vs a dirty engine
• Offers unsurpassed wear protection by keeping engine parts from coming into contact
• Delivers outstanding piston cleanliness, keeping pistons up to 50% cleaner than required by the toughest industry standards (based on Sequence IIIH engine test results)
• Specifications, Approvals and Recommendations: FCA MS-6395, Chrysler MS-13340; Ford WSS-M2C946-B1; GM dexos1TM Gen 2; HONDA/ACURA HTO-06; Volvo
• Exceeds the requirements of the following industry specifications: API SN PLUS, API SN-RC and all previous categories; ILSAC GF-5; ACEA A1/B1
• For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual.

Improved technology. Same hard work Shell Rotella® T4 Triple Protection® Heavy Duty Engine Oil builds upon the heritage of Triple Protection® you have come to depend on. Today, it’s more advanced than ever, designed to provide hard working protection that adapts to driving conditions.

Product Features:

• Enhanced protection against oxidation
• Enhanced wear protection
• Improved deposit control/cleanliness
• Sustained emission control system durability in particulate filters and after-treatment systems. (Compared to prior Shell Rotella« Triple Protection« 15W-40.)
• Sustained emission control system durability in particulate filters and after-treatment systems. (Compared to prior Shell Rotella® Triple Protection® 15W-40.)
• Provides enhanced protection against oil oxidation for more efficient operation

Pennzoil Platinum® Euro is designed for complete protection and performance for European vehicles. Pennzoil Platinum Euro helps extend engine life and protects for up to 15 years or 500,000 miles, whichever comes first. Guaranteed.1 Pennzoil Platinum Euro is made from natural gas, not crude. Its base oil is 99.5% free from engine clogging impurities. The Proof is in the Pennzoil. 1 Based on Sequence IIIH results . Does not apply to Pennzoil Platinum® Euro motor oil.

Product Features:

• No other leading motor oil provides better protection from friction1? 1 Based on Sequence IVA wear test using SAE 0W-40.
• Better Fuel Economy2 2 Meets the requirements of MB 229.5 which includes Fuel Economy Improvement (FEI) requirement as determined in industry standard gasoline engines
• Protects Horsepower
• Nothing keeps your engine close to factory clean3 3 Based on Sequence vh and M-111 sludge test using SAE 0W-40.
• Complete Protection and Performance: Pennzoil Platinum« Euro is specifically designed to provide comprehensive protection and optimal performance for European vehicles.
• Complete Protection and Performance: Pennzoil Platinum® Euro is specifically designed to provide comprehensive protection and optimal performance for European vehicles.
• Extended Engine Life: This full synthetic 5W-40 engine oil helps extend engine life, offering protection for up to 15 years or 500,000 miles, whichever comes first.
• High Purity Base Oil: Made from natural gas, not crude, Pennzoil Platinum« Euro’s base oil is 99.5% free from engine-clogging impurities, ensuring cleaner engine performance.
• High Purity Base Oil: Made from natural gas, not crude, Pennzoil Platinum® Euro’s base oil is 99.5% free from engine-clogging impurities, ensuring cleaner engine performance.
• Full Synthetic Composition: As a full synthetic oil, it offers superior performance and protection compared to conventional oils, making it ideal for high-performance European engines.
• Pennzoil Platinum« Euro meets the rigorous demands of European vehicle manufacturers, ensuring reliability and efficiency.
• Pennzoil Platinum® Euro meets the rigorous demands of European vehicle manufacturers, ensuring reliability and efficiency.

Formerly known as Shell Rotella® T Triple Protection, Shell Rotella® T4 Triple Protection Heavy Duty Diesel Engine Oil is the most technically advanced Shell Rotella® formulation ever. This 15W-40 motor oil uses advanced additive technology to protect under the most severe engine conditions found in modern, low-emission engines and older hard-working diesel engines. It effectively sustains emissions control system durability where diesel particulate filters and after-treatment systems are used. Plus, it provides enhanced protection against viscosity loss due to shear and improved oil aeration compared to the previous formulation. Shell Rotella® Triple Protection Technology: Shell Rotella® T4 15W-40 heavy duty engine oil uses a proprietary formula exclusive to Shell. It is designed to provide protection in three critical areas: Acid control helps protect against corrosion from acids formed as fuel burns and the oil ages. Deposit control helps keep engines clean for optimum performance and long life. Wear control helps keep moving metal engine surfaces apart for a longer life. For Every Hardworking Need: With its wide range of specifications, and approvals from many of the world’s leading engine makers, Shell Rotella® T4 15W-40 heavy duty oil is an excellent choice for on-highway fleets, general haul, construction, agriculture, public-transport operators, diesel pickup trucks, including high-power vehicles where resistance to increased heat and stress is required. For technical questions, contact our Technical Help Desk at 1-(800) BEST-OIL or (800) 237-8645 Option 3, 1; or with complete Year/Make/Model information for a recommendation.

Product Features:

• Triple Protection® from wear, deposits and oil breakdown, this conventional Diesel Engine Oil provides exceptional wear protection for heavy duty engines for longer life(1)
• Formulated with advanced additive technology, which is engineered for superior engine cleanliness throughout the oil drain interval
• Provides increased shear stability for better viscosity control and optimal engine oil pressure
• Heightens emission control system durability and improves oil aeration
• Provides enhanced protection against oil oxidation for more efficient operation

FRAM Conventional High Mileage 10W30 Engine Oil is specially designed with enhanced  additives to help reduce leaks and oil consumption in worn or higher mileage engines. This oil is formulated to help clean out sludge buildup and keep engines running clean and with  increased efficiency and power. They are specially designed for engines with over 75,000 miles. FRAM Conventional High Mileage 10W30 Engine Oil will protect domestic and imported vehicles and equipment powered with either gasoline or light duty diesel engines – even those that are turbo charged or super-charged. This high-quality oil is specifically formulated to meet or exceed  all new car manufacturers’ warranty requirements as well as the stringent industry standards API  SP/CF, and 10W30 grade will also meet or exceed the ILSAC GF-6A Resource Conserving Service Category.

Product Features:

• Formulated with a unique combination of premium base oils and an enhanced additive system
• Provides increased protection in higher mileage engines
• Helps restore seal condition to reduce oil consumption
• Increases protection against high temperature deposits and ring sticking
• ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE OIL FOR YOUR ENGINE.
• Sludge Cleanup and Engine Efficiency: Formulated to help clean out sludge buildup, keeping engines running clean with increased efficiency and power.
• Versatile Compatibility: Protects domestic and imported vehicles and equipment powered by gasoline or light-duty diesel engines, including turbocharged and supercharged engines.
• Meets Stringent Standards: Formulated to meet or exceed all new car manufacturers’ warranty requirements and stringent industry standards API SP/CF, and ILSAC GF-6A Resource Conserving Service Category.

FRAM Full Synthetic Heavy Duty 5W-40 is a fully synthetic product formulated to provide  the ultimate in diesel engine oil protection. It is designed to protect EGR/Low-Emission Diesel  Engines while maximizing the durability of Diesel Particulate Filters (DPF’s). New additive  systems and rigorous laboratory and field testing have proven that FRAM Full Synthetic  Heavy Duty Diesel 5W-40 offers better and stronger armor against wear, improved performance  and greater fuel economy. FRAM Full Synthetic Heavy Duty Diesel 5W-40 helps your engine  operate within the new emission and pollution requirements as well as meeting or exceeding the  OEM requirements for every new engine being built by every engine manufacturer worldwide, including but not limited to: Caterpillar, Cummins, DaimlerChrysler (Mercedes Benz), Detroit  Diesel, Volvo, Mack, MAN, and Navistar.

Product Features:

• Excellent low temperature pumpability.
• High oxidative and thermal stability even under operating extremes.
• Lower oil consumption. Improved fuel economy.
• Ability to extend oil drain intervals.
• High soot handling.
• ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE OIL FOR YOUR ENGINE.

FRAM Full Synthetic High Mileage SAE 10W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and and enhanced additives that meet the stringent API: SP, SN, SM, SL, SJ, and ILSAC GF-6A specifications while reducing leaks and oil consumption in worn or higher mileage engines. Formulated with synthetic base stocks, this oil offers increased oxidation inhibition performance as well as increased high and low temperature performance when compared against conventional oils. The FRAM Full Synthetic High Mileage SAE 10W-30 is formulated to help clean out sludge buildup and keep engines running clean and with increased efficiency and power. Specially designed for engines with over 75,000 miles, the FRAM Full Synthetic High Mileage SAE 10W-30 provides the ultimate protection for your higher mileage engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Full Synthetic High Mileage SAE 10W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability for higher mileage vehicles over previous oil categories.

Product Features:

• Faster oil flow at start-up
• Fuel efficiency gains over heavier grade oils
• Reduces oil cumsumption
• Excellent sludge and varnish protection
• Slows engine leaks
• Outstanding thermal and oxidation stability
• Lowers oil vaporization and consumption at extreme conditions
• Always refer to your vehicles operating manual to select the correct grade oil for your engine.

Mobil Delvac 1 ESP 5W-40 is an advanced full synthetic oil specially fomulated for diesel engines that works to extend engine life, fuel economy potential, and deliver long drain capability for modern diesel engines operating in severe conditions. Mobil Delvac 1 ESP helps to deliver exceptional performance with state-of-the-art technology to reduce engine deposits and sludge formation, as well as provide anti-wear and anti-scuff engine control. Provides excellent low-temperature performance for increased oil flow to critical engine surfaces at startup. Works to deliver oustanding protection against oil thickening and degradation, helping to reduce the number of oil changes. Recommeded for: most engine generations up to the latest and most sophisticated high-performance diesel engines with turbocharger, direct-injection and low-emission designs, on-and-off highway applications operating in both high-speed/high-load and short-haul pick-up/delivery and in severe low-speed/heavy-load conditions, heavy-duty diesel engines using low-sulfur diesel fuels and many biodiesel fuel formulations, naturally aspirated and turbocharged, diesel-powered equipment, diesel-powered equipment from American and European builders, and refrigeration units. Meets or exceeds the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4, SN, SM. ( Compared to an SAE 15W-40 engine oil. Actual savings are dependent on vehicle/engine type, outside temperature, driving conditions and your current engine oil viscosity.)

Product Features:

• Advanced full synthetic diesel engine oil that helps to extend engine life and fuel economy potential of modern diesel engines operating in severe conditions
• Formulated to help high-performance diesel engines with turbocharger, direct-injection, low-emission designs, and low-sulfur and biodiesel fuel formulations
• Provides excellent oxidation performance, anti-wear, and anti-scuff properties that helps to reduce engine deposits and keep engines running reliably
• Excellent low-temperature performance for increased oil flow to critical bearing surfaces at startup and controlling low-temperature sludge formation
• Provides outstanding protection against oil thickening and degradation, helping to reduce the number of oil changes and oil disposal needs
• Manufacturer Part Number: 122271

Pennzoil Platinum Euro is designed for complete protection and performance for European vehicles. Pennzoil Platinum Euro helps extend engine life and protects for up to 15 years or 500,000 miles, whichever comes first. Guaranteed.1 Pennzoil Platinum Euro is made from natural gas, not crude. Its base oil is 99.5% free from engine clogging impurities. The Proof is in the Pennzoil. 1 Based on Sequence IIIH results . Does not apply to Pennzoil Platinum Euro motor oil.

Product Features:

• No other leading engine oil provides better protection from friction1? 1 based on sequence iva wear test using sae 0w-40.
• Better fuel economy2 2 meets the requirements of mb 229.5 which includes fuel economy improvement (fei) requirement as determined in industry standard gasoline engines
• Protects horsepower
• Nothing keeps your engine close to factory clean3 3 based on sequence vh and m-111 sludge test using sae 0w-40.
• Complete protection and performance for European vehicles.
• Extends engine life and protects for up to 15 years or 500,000 miles, whichever comes first.

FRAM Full Synthetic High Mileage SAE 5W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and and enhanced additives that meet the stringent API: SP, SN, SM, SL, SJ, and ILSAC GF-6A specifications while reducing leaks and oil consumption in worn or higher mileage engines. Formulated with synthetic base stocks, this oil offers increased oxidation inhibition performance as well as increased high and low temperature performance when compared against conventional oils. The FRAM Full Synthetic High Mileage SAE 5W-30 is formulated to help clean out sludge buildup and keep engines running clean and with increased efficiency and power. Specially designed for engines with over 75,000 miles, the FRAM Full Synthetic High Mileage SAE 5W-30 provides the ultimate protection for your higher mileage engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Full Synthetic High Mileage SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability for higher mileage vehicles over previous oil categories.

Product Features:

• Faster oil flow at start-up
• Fuel efficiency gains over heavier grade oils
• Reduces oil cumsumption
• Excellent sludge and varnish protection
• Slows engine leaks
• Outstanding thermal and oxidation stability
• Lowers oil vaporization and consumption at extreme conditions
• Always refer to your vehicles operating manual to select the correct grade oil for your engine.

Castrol EDGE 10W-30 Full Synthetic Motor Oil is Castrol’s strongest oil, ideal for drivers seeking the ultimate in sludge protection, wear protection, and engine performance. This oil is 3X stronger against viscosity breakdown than the leading full synthetic, 10X better in high-temperature performance, and offers 6X better wear protection. It meets API SP/SN PLUS, ILSAC GF-6, ACEA A1/B1, GM 6094M and 4718M, and Chrysler MS 6395 engine test requirements, ensuring top-tier performance and reliability. Unlock maximum performance with every drive.

Product Features:

• 3X Stronger against viscosity breakdown than the leading full synthetic – Based on Kurt Orbahn test in 5W-30 grade
• 10X Better High Temperature performance – As measured in Seq IIIH engine test vs. API SP limit
• 6X Better Wear Protection – As measured in Seq IVA test vs. latest test limit
• Meets API SP/SN PLUS, ILSAC GF-6, ACEA A1/B1, GM 6094M and 4718M, Meets engine test requirements of Chrysler MS 6395
• Ultimate Sludge and Wear Protection: Castrol EDGE 10W-30 Full Synthetic Motor Oil with Fluid TITANIUM Technology offers superior protection against sludge and wear, ensuring your engine remains clean and efficient.

Castrol GTX High Mileage motor oil is the leading consumer high-mileage brand. You won’t need to worry about using a high mileage oil or synthetic because this is both. It’s a synthetic blend engine oil that helps extend the life of your engine by protecting against sludge, wear and burn-off and also liquid engineered to protect your emission system. One of the leading causes of ‘check engine’ lights coming on in high mileage cars is actually catalytic converter failure, which can be caused by phosphorous in engine oil. While phosphorous is present in all engine oils for its ability to reduce wear, it is effectively poisonous to catalytic converters. Castrol GTX High Mileage Motor Oil is liquid engineered with Phosphorous Replacement Technology to replace some of the phosphorous with an advanced additive that maintains robust wear protection. When you want to extend the life of your high mileage engine and emission system and find out how many miles you can go on a high-mileage oil, there is no better choice than Castrol GTX High Mileage Motor Oil.

Product Features:

• Phosphorus replacement technology to help extend the life of the emission system
• Superior dispersancy that fights sludge build up
• Exceptional oil burn-off protection exceeding industry standards (based on api and acea volatility specifications)
• Improved fuel economy (in 5w-20, 5w-30 and 10w-30 grades versus industry specifications)
• Provides extra protection for older vehicles: Castrol GTX High Mileage Engine Oil is specifically designed to provide extra protection for high mileage engines, helping to extend the life of your vehicle.
• Synthetic blend composition: This engine oil is a synthetic blend, combining the benefits of both conventional and synthetic oils to provide superior protection against sludge, wear, and burn-off.

Valvoline High Performance Synthetic Gear Oil is the thermally stabile extreme pressure lubricant that offers outstanding protection for gearboxes and differentials in passenger cars, light trucks, and sport utility vehicles. Combined with high quality synthetic base oils, our formula’s superior additives help reliably safeguard against severe temperatures, shock loads, foaming, scuffing, scouring, corrosion and pitting in high load, high torque and high horsepower conditions. Can be used in conventional and limited slip hypoid differentials where GL-5 is specified as well as non-synchronized manual transmissions that require GL-4. Protect your gears with Valvoline, the #1 gear oil brand.

Product Features:

• HIGH PERFORMANCE EXTREME-PRESSURE ADDITIVES HELP MINIMIZE WEAR in high pressure and high temperature conditions
• EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION can easily handle both winter and summer conditions for dependable coverage and protection year-round
• REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
• FIGHTS CORROSION AND RUST with emulsifying agents and safeguards against impurities, oxidation and thermal breakdown
• SUPERIOR ADDITIVES help reliably safeguard against severe temperatures, shock loads, foaming, scuffing, scouring, corrosion and pitting in high load, high torque and high horsepower conditions