Oldsmobile Silhouette Fluids and Chemicals

Product Features:

• Reduces heat & wear
• Eliminates TQ converter shudder & clutch pack chatter
• For all automatic transmissions & 4×4 transfer cases

Longtime High Tech 5W-30 Full Synthetic Diesel Engine Oil is expertly crafted for diesel engines, particularly those equipped with diesel particulate filters (DPF). This low SAPS formula ensures smooth engine running and is ideal for use with turbochargers and catalytic converters, delivering excellent wear protection and extending engine service life. Its advanced composition guarantees fast oil penetration, optimizing performance and reliability even under demanding conditions. Designed for extended oil change intervals as per manufacturer recommendations, this 5W-30 oil supports long-term efficiency while maintaining superior protection. Made in Germany, it reflects precision engineering and quality, making it a dependable choice for diesel engine care.

Product Features:

Product Features:
• smooth engine running
• ideal with turbochargers and catalytic converters
• long engine service life
• Excellent wear protection
• Ensures fast oil penetration of the engine
• Made in Germany

All-year oil for gasoline and diesel engines. Modern multi-purpose low-friction motor oil developed according to the latest technology. Unconventional base oils based on HC synthetic technology were combined with the most modern additive technology. The low-viscosity and high sheer stability of the motor oil guarantees optimal cleanliness, reduces frictional loss in the engine and provides outstanding protection against wear. The results are savings in fuel and an extended service life for the engine. Tested for turbochargers and catalytic converters.

Product Features:

• High-tech low-viscosity engine oil
• Advance wear protection formula
• Fastest cold start oiling during start up
• Provides ideal oil pressure under all operating conditions
• Keep oil consumption low
• Made in germany

FRAM DEXRON-VI FULL SYNTHETIC ATF represents the latest technology in full synthetic automatic transmission fluids. This product is designed for the newest generation of highly efficient transmissions now being installed in most vehicles, and is DEXRON-VI licensed by GM and meets JASO 1A performance requirements. It is a fuel efficient choice for older models as well, such as those currently using DEXRON-III. FRAM DEXRON-VI FULL SYNTHETIC ATF is recommended for use in all GM DEXRON applications and in transmissions applications calling for Toyota WS, Nissan  Matic J and Matic S, Ford part numbers XT-10-QLV and XT-6-QSP, Honda Z-1 and DW 1, and Hyundai SP-VI. Check owner’s manual for specific recommendations.

Product Features:

• Outstanding resistance to oxidative and thermal breakdown.
• Exceptional low temperature fluidity.
• Excellent anti-wear properties.
• Excellent gear shift quality throughout service life.
• Always Refer To Your Vehicles Operating Manual To Select The Correct Grade Fluid For Your Transmission
• Transmission Fluids Also Applicable In Power Steering Units; Check Owners’ Manual

Product Features:

• Fully Synthetic
• Advance transmission protection from standard to sever duty
• Resist thermal breakdown, oxidation, varnish and sludge

Certified A/C Pro R-134a PAG 150 Refrigerant Oil with ICE 32. This product contains approximately 8 fluid ounces of PAG refrigerant oil with ICE32. High viscosity PAG oil for R-134a auto A/C systems; ISO 150 viscosity. R-134a PAG 150 AC Oil Lubricant with ICE32 Lubricant Enhancer features advanced chemistry to help extend compressor life and improve cooling capacity. The PAG oil helps quiet noisy compressors. Meets OEM specifications.

Product Features:

• High viscosity PAG oil for R-134a auto A/C systems; ISO 150 viscosity
• ICE32 Lubricant Enhancer: advanced chemistry to help extend compressor life and improve cooling capacity
• Meets OEM specifications

Prestone MAX DOT 3 Motor Vehicle Brake Fluid is our highest grade formula, maximizing performance vs. DOT standard. Prestone MAX is our best brake fluid at protecting against overheating and brake fade. With 100,000 mile fluid life, our longest life fluid has 2X more miles between replacement than regular Prestone DOT 3. Prestone MAX has superior performance in severe braking conditions when compared to regular Prestone DOT 3, which means even more piece of mind about the braking system. This synthetic fluid starts with our highest dry boiling point giving our best protection against performance decline due to water absorption. Prestone MAX DOT 3 is safe to use in all DOT 3 braking systems, ABS, disc or drum, and can mix with any DOT 3 fluid. Mixing Prestone MAX with other fluids will lower the performance rating for miles and boil points, for best results replace completely with Prestone MAX DOT 3. It is recommended to only use the DOT fluid specified for your car. Using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:

• 100,000 Mile Fluid Life
• Prevent Overheating and Brake Fade with Our Highest Grade Formula. Prevents corrosion of all metals within the braking system.
• Superior Protection in Extreme Braking Conditions
• Synthetic, Long Life Formula – 2X Longer than regular Prestone DOT 3

Prestone® DOT 3 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 3. This synthetic fluid starts with a higher dry boiling point than the DOT minimum standard to protect against overheating, brake fade and performance decline due to water absorption. This extended life (50,000 mile) fluid is also formulated to prevent corrosion of all metals within the braking system. This formula is safe to use in all DOT 3 braking systems (ABS, disc or drum) and can mix with any DOT 3 fluid. It is recommended to only use the DOT fluid specified for your car, as using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:

• 50,000 Mile Fluid Life
• Prevent Overheating & Brake Fade with High Grade Formula (1)
• Protects against performance decline due to water absorption. Prevents corrosion of all metals within the braking system
• Synthetic, Extended Fluid Life Formula

Prestone DOT 3 Motor Vehicle Brake delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 3. This synthetic fluid starts with a higher dry boiling point than the DOT minimum standard to protect against overheating, brake fade and performance decline due to water absorption. This extended life (50,000 mile) fluid is also formulated to prevent corrosion of all metals within the braking system.  This formula is safe to use in all DOT 3 braking systems (ABS, disc or drum) and can mix with any DOT 3 fluid.  It is recommended to only use the DOT fluid specified for your car, as using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:

• 50,000 Mile Fluid Life
• Prevent Overheating and Brake Fade with High Grade Formula
• Protects against performance decline due to water absorption. Prevents corrosion of all metals within the braking system.
• Synthetic, Extended Fluid Life Formula

75,000 miles is more than a mile marker. It’s a signal that your engine is ready for greater protection. That’s when you need Valvoline High Mileage with MaxLife Technology Motor Oil. Its exclusive formula is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles. Our mixture is specially developed with a unique combination of synthetic and premium conventional oils to protect your high-mileage motor against wear, friction, heat, and deposits – the four major causes of engine breakdown and expensive repairs. Anti-wear additives defend critical engine components, advanced friction-fighting agents reduce heat and abrasion, added detergents clean the inside of your engine, and premium seal conditioners handle aging seals to prevent leaks. It fights sludge, corrosion and rust that can rob your engine of horsepower, fuel efficiency and longevity. From extreme temperatures and cold starts to stop-and-go traffic and frequent short trips, viscosity modifiers make sure the oil flows more easily, coats more completely, and resists thermal breakdown under even the most intense driving conditions. Its unique mixture curbs contaminants to keep high-mileage engines from burning and consuming oil that can foul spark plugs, creating higher emissions and causing your motor to run roughly.

Product Features:

• MAXLIFE TECHNOLOGY PREVENTS engine breakdown with 40% better wear protection than the industry standard
• REFRESH AGING SEALS AND PREVENT LEAKS with seal conditioners
• REDUCE SLUDGE, DEPOSITS, CORROSION, AND RUST with added detergents – keep motors clean inside
• ENHANCED FRICTION PERFORMANCE HELPS MAXIMIZE POWER with advanced friction-fighting agents
• MEETS OR EXCEEDS ALL REQUIREMENTS of ILSAC GF-6A, API SP, API SN with SN PLUS, API SN
• MaxLife Technology: Valvoline High Mileage with MaxLife Technology is specially formulated to maximize engine life in vehicles with over 75,000 miles, providing superior protection against wear, friction, heat, and deposits.
• Synthetic Blend Composition: This motor oil features a unique combination of synthetic and premium conventional oils, ensuring optimal performance and protection for high-mileage engines.

Quaker State 5W-30 motor oil is a synthetic blend formulation that helps engines survive daily commutes from high-speed highway operation to repetitive, stop-and-go driving. It maintains the required viscosity from start to finish, providing optimal protection. Quaker State Motor Oil combats engine sludge and deposits, providing rust protection from harmful acids generated by engine contaminants. It reduces engine wear, providing durable wear protection. Quaker State 5W-30 Motor Oil meets or exceeds the following OEM requirements: Chrysler MS-6395; Ford WSS M2C946-A, Ford WSS M2C946-B1; GM 6094M. It exceeds the requirements of the following industry specifications: API SP and all previous categories; ILSAC GF-6a and all previous ILSAC standards. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owner’s manual.

Product Features:

• Synthetic blend 5W-30 engine oil that provides durable wear protection and reduces engine wear
• Provides corrosion protection against harmful acids generated by engine contaminants
• Maintains viscosity from start to finish, providing optimal oil film protection
• Helps engines survive daily commutes from high-speed highway operation to repetitive, stop-and-go driving
• Combats engine sludge and deposits
• Formulated to exceed industry specifications: ILSAC GF-6A, API SP/SP-Resource Conserving and all previous categories
• Meets OEM requirements: Chrysler MS-6395, Ford WSS M2C946-A, Ford WSS M2C946-B1, GM 6094M
• Formerly known as Quaker State Advanced Durability 5W-30 motor oil
• Synthetic Blend Formulation: Quaker State 5W-30 motor oil is a synthetic blend that helps engines endure daily commutes, from high-speed highway driving to repetitive stop-and-go traffic.

Royal Purple HMX SAE 5W-30 High-Mileage Synthetic Motor Oil, 5 quart is specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles. Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology Synerlec, HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines. In addition, HMX is fortified with stout detergents to remove engine build-up and deposits, maintain cleanliness and promote engine longevity. 

Product Features:

• Specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles
• Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology
• HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines
• Reduces friction and metal-to-metal contact for peak engine performance
• Also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up

Prestone American Vehicles (Orange) antifreeze+coolant is specially designed to work with these specific vehicles: Ford 2002 and newer; Chrysler 2000 and newer; GM 1995 and newer. Prestone’s Antifreeze+Coolants are designed to the highest standards using state of the art technology. These fluids are designed to not only manage the engine temp and protect from freezing up, but they also protect the engine from rust, corrosion, buildup, pitting and engine damage. All of those can cause engine part failure and expensive repairs. Avoid costly repairs and vehicles in the shop with Prestone Asian vehicles antifreeze+coolant. This fluid is designed to last 10yrs/300,000 miles and also to protect the internal parts of the engine for 10yrs/300,000, officially patented by Prestone.

Product Features:

• Specially formulated to work with vehicles using multiple colors of fluid; OAT, HOAT, G05. Ford 2002 and newer; Chrysler 2000 and newer; GM (Chevrolet, Buick, GMC, Cadillac, Oldmobile, Pontiac, Saturn) 1995 and newer.
• Superior protection guarantee – 10 year/300,000 mile Extended life formula
• Includes patented Prestone CorGuard technology, the best advancement in cooling system parts protection that protects against rust and corrosion of all cooling system metals, including aluminum. Protection for 300,000 miles.
• Ready to Use formula. Perfect for small volume top-off or complete drain and refill of the cooling system.

Prestone Platinum antifreeze+coolant is Prestone’s best universal antifreeze and coolant product. Guaranteed to work with all vehicles; all makes, models, years and fluid colors. 15+ years, 350,000 miles of protection; the fluid is Guaranteed for the life of your vehicle. This advanced product delivers Extreme Protection against both freezing temperatures (-50 deg.) and overheating/boiling over of the engine (+268 deg.). Prestone Platinum utilizes industry leading protection from engine damaging rust, corrosion, buildup and scale. While ordinary antifreeze coolant only focuses on the basic corrosion coverage, Prestone Platinum goes farther, adding our most advanced cooling system protection, allowing the system to run optimally, like when it was new. Internal buildup and corrosion damage can cause engine part failure or clogging, leading to expensive repairs and inconveniences. Prestone Platinum helps you avoid costly repairs and vehicles in the shop. This extended life coolant is Guaranteed to work with all new engines and engine technology, while also being backwards compatible, improving protection in all older engines. Prestone Platinum antifreeze+coolant – Year Round Protection.

Product Features:

• Guaranteed to work with All Vehicles. Universally works with all fluid colors; All OAT, POAT, HOAT and IAT; G05, G11, G12, G12++, G13, G30, G40, and GG40. For all engines and engine sizes, new and older engines.
• 15+ year/350,000 mile Extended life formula. The fluid is guaranteed for the life of your vehicle
• Includes our most advanced Prestone Cor-Guard technology, unmatched cooling system parts protection that protects against engine damage; rust, corrosion, scale, build-up and clogging. Protection for 15+yrs/350,000 miles.
• Ready to Use formula – Prediluted 56/54. Perfect for small volume top-off or complete drain and refill of the cooling system

FRAM Conventional Green Concentrate is an ethylene glycol-based product for use in car and light duty trucks that are already using a conventional coolant. The inhibitors prevent rust, corrosion, and provide freeze-up and boil-over protection. When used as directed, the Prime Green Concentrate Low Silicate formula provides full protection for a minimum of one year.

Product Features:

• Low Silicate Formula.
• When used as directed, will provide protection for a minimum of 1 year
• Meets or exceeds ASTM requirements for cars, light duty trucks
• Concentrated formula. Must mix with high quality (distilled/deionized) water to the desired ratio. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.

Valvoline MaxLife Multi-Vehicle ATF is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life.  Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi. Recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, Ford MERCON LV, Toyota/Lexus Type T, T-II, T-IV, WS, Honda/Acura, ATF-Z1, Nissan/Infiniti Matic-D, Matic-J, Matric-K, Matic-S, Hyundai/Kia SP-II, SP-III, SP-IV, SPH-IV, BMW 7045E, ETL 8072B, LA2634, LT71141, Allison C-4, Mercedes Benz NAG-1, Volvo 1161521, 1161540, 97340, 1273.41, and VW/Audi G-052-025-A2, G-052-162-A1. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:

• Formulated with full-synthetic base oils and long life friction modifiers to help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
• High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
• Developed with anti-wear technology to help improve transmission durability
• Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures

Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, MERCON LV and Allison C-4.

Product Features:

• Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
• Enhanced anti-shudder protection for smooth shifting and maximum power transfer
• Developed with anti-wear technology to help improve transmission durability
• Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures

Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the No. 1 ATF product, suitable for use in 95% of vehicles. And now, it’s recommended for most belt & chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it’s designed to help prevent leaks, reduce wear & tear, and maximize performance. Has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Valv MaxLife Multi-Vehicle ATF is suitable for most Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW & Audi vehicles. Recommended for use in: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC; Honda/Acura ATF-Z1 and Honda CVT; Nissan/Infiniti Matic-D, Matic-J, Matic-K and Matic-S; Hyundai/Kia SP-II, SP-III, SP-IV and SPH-IV; BMW 7045E, ETL 8072B, LA2634 and LT71141; Allison C-4; Mercedes-Benz NAG-1; Volvo 1161521, 1161540, 97340 and 1273.41; Subaru ATF HP, Lineartronic chain CVT and CVT-II, Lineartronic High Torque CVT, and CV-30; and VW/Audi G-052-025-A2 and G-052-162-A1. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA

Product Features:

• FOR USE IN 95% OF VEHICLES INCLUDING MOST CVTs in operation with US registered light duty applications
• HIGH PERFORMANCE CONDITIONING AGENTS prolong seal elasticity to prevent leaks
• IMPROVED DURABILITY & TRANSMISSION LIFE with anti-wear technology to avoid costly repairs
• ENHANCED HIGH & LOW TEMP PERFORMANCE supports transmission fluid in all weather situations

Only compatible with R134a refrigerant; Tools required for installation; Plastic bottle; Universal applications

Only compatible with R134a refrigerant; Tools required for installation; Plastic bottle; Universal applications

Prestone Power Steering Fluid + Stop Leak (PSF+SL) delivers increased system life and prevents and stops system leaks. Stop Leak additives renew, restore and condition seals in the power steering system. These seals harden and shrink over time which are the likely cause of leaks. The stop leak additives also prevent leaks by rejuvenating seals before they leak. Also designed with Anti-wear System Protection, Prestone PSF+SL protects against pump failure, squeals and clogs. This 50,000 mile fluid life is formulated for use in all manufacturers; cars, SUVs, crossovers, and light and medium duty trucks. This a conventional fluid. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:

• 50,000 Mile Fluid Life
• Includes Stop Leak Additives to prevent and stop power steering system leaks.
• Anti-Wear Protection = Increased System Life. Protects against pump failure, squeals and clogs. Corrosion protection for metals, rubber and gasket components.
• Conventional Formula – For use in all manufacturers

Product Features:

• Additional seal conditioners to prevent or help stop leaks
• Extra cleaning agents to reduce varnish and sludge formulation
• Protects against clutch wear
• Restores smooth shifting
• Greater frictional durability provides superior transmission performance
• Can be used in a wide variety of specifications including DEXRON«-IIIH, MERCON«áand JASO-1A.
• Exceeds all passenger car and light truck manufacturer┐s warranty requirements for vehicles, transmissions or power steering service where a DEXRON«-IIIH or MERCON« type ATF is specified

Prestone Power Steering Fluid + Stop Leak (PSF+SL) delivers increased system life and prevents and stops system leaks. Stop Leak additives renew, restore and condition seals in the power steering system. These seals harden and shrink over time which are the likely cause of leaks. The stop leak additives also prevent leaks by rejuvenating seals before they leak. Also designed with Anti-wear System Protection, Prestone PSF+SL protects against pump failure, squeals and clogs. This 50,000 mile fluid life is formulated for use in all manufacturers; cars, SUVs, crossovers, and light and medium duty trucks. This a conventional fluid. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:

• 50,000 Mile Fluid Life
• Includes Stop Leak Additives to prevent and stop power steering system leaks.
• Anti-Wear Protection = Increased System Life. Protects against pump failure, squeals and clogs. Corrosion protection for metals, rubber and gasket components.
• Conventional Formula – For use in all manufacturers

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
• Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
• 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
• 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

Prestone MAX American Vehicles Power Steering Fluid (PSF) + Stop Leak maximizes and increases system life + the power to stop leaks. Stop Leak additives renew, restore and condition seals in the power steering system. These seals harden and shrink over time which are the likely cause of leaks. This formula is also great at preventing leaks by rejuvenating seals before they leak. This synthetic fluid is designed with 2X Anti-wear System Protection, which means more protection against pump failure, squeals and clogs. 100,000 mile fluid life, 2X more than conventional fluid, extends the time between replacement. This fluid is formulated for American vehicle manufacturers: Ford, Lincoln, Mercury, Dodge, Ram, Jeep, Chrysler, GMC, Chevrolet, Buick, Cadillac, Pontiac, Oldsmobile and others. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:

• 100,000 Mile Fluid Life. Synthetic Formula for longer life and more protection
• MAX + Stop Leak. Stop Leak Additives to prevent and stop power steering system leaks.
• For use in American vehicle manufacturers: Ford, Lincoln, Mercury, Dodge, Ram, Jeep, Chrysler, GMC, Chevrolet, Buick, Cadillac, Pontiac, Oldsmobile and other
• 2X Anti-Wear Protection for enhanced System Life vs. conventional fluid. More protection against pump failure, squeals and clogs